full-bridge strain gauges for force transducers
TRANSCRIPT
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
BCM SENSOR full-bridge strain gauges are specially developed for manufacturing precision force transducers which employ bending
beam working principle. For the purpose of this specific application, the full-bridge strain gauges are temperature and creep
compensated, and they can be either encapsulated or open-face according to the requirement.
The karma gauges can be manufactured with effective modulus compensation (EMC). The EMC gauges are mostly for manufacturing
low-cost force transducers, because with the EMC gauges the manufacturers can eliminate the use of compensation resistors and
achieve the sensitivity compensation.
For creep compensation, there are 18 creep codes: “N10, N9, N8, ..., O, ..., P5, P6, P7". The “N10” is the most negative creep code,
while the “P7" is the most positive one. The “O” stands for a moderate creep code. For a specific strain gauge, please find its available
creep code(s) at the column “&” in its selection chart. For a customized creep code, consult BCM SENSOR.
For more information on temperature compensation (STC), creep compensation, and EMC of strain gauges, please refer to the
corresponding articles respectively on the website of BCM SENSOR.
Description
1/17
Ordering Information
Notes: (1) This code is only applicable to either the half- or full-bridge SG.
(4) Working temperature ranges of the wires:
EW: -40 ~ +150°C; PW: -40 ~ +105°C; HW: -80 ~ +250°C.
(2) It is recommended to select this option, if one wants to use the karma gauges and has no any experience having soldered
leads or wires onto the karma gauges.
(3) 30mm is a standard length. The customized length is available on request.
example:
F: phenolic resinmodified
B: laminated polyether-ketoneI: polyimide resinmodified
A: advanced laminated polyimide
gauge length in mm
gauge resistance in Ohm
backing layer
metal foil
gauge type
gauge pattern
STC or EMC number of gauges
(1)center distance between two grids
creep code of gauges
solder-pad finishing
C: constantanK: karma
E: encapsulated gaugeO: open-face gauge
sensor-body material
titaniummartensitic SS, mild steelaustenitic SS, copperaluminummagnesiumplexiglass
STC EMC
9 11 16 23 27 65
N.A. M11 M16 M23 N.A. N.A.
creep code
N10, N9, N8, N7, N6, N5, N4, N3, N2, N1, O, P1, P2, P3, P4, P5, P6, P7
SP: naked solder padsSD: tinned solder dots, available only for karma gauges(2)
RL: silver-plated round copper leads (30 mm)(3)
EW : enamel insulated copper wires (30 mm)(4) (3)
(3)SE: solder extension (30 mm)
L: laminated polyimide
1.8 EB
(4) (3)PW : PVC insulated copper wires (30 mm)(4) (3)HW : PTFE insulated copper wires (30 mm)
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
2/17
Specifications
Parameters Specifications / Description
ECI-series
wide working temperature range, popular for normal industrial, automotive and military applications.
constantan alloy
5±1
modified polyimide resin
30±3
phenolic resin
17.5±2.5
350, 700, 1000
down to ±0.3
down to ±0.1
2.1
±0.1
±1
±5,000
±30,000
≥3mm
9, 11, 16, 23, 27, 65
-85 ~ +150
170
ECB-series
high strain limit, suitable for normal industrial and automotive applications
constantan alloy
5±1
laminated polyether-ketone
25±3
polyether-ketone
12.5±2.5
350, 700, 1000
down to ±0.3
down to ±0.1
2.1
±0.1
±1
±5,000
±30,000
≥3mm
11, 16, 23
-45 ~ +150
170
ECA-series
widest working temperature range, suitable for high temperature or cryogenic applications
constantan alloy
5±1
advanced laminated polyimide
25±3
polyimide
12.5±2.5
350, 700, 1000
down to ±0.3
down to ±0.1
2.1
±0.1
±1
±5,000
±30,000
≥3mm
11, 16, 23
-195 ~ +200
220
ECL-series
suitable for normal industrial and military applications
constantan alloy
5±1
laminated polyimide
25±3
polyimide
17.5±2.5
350, 700, 1000
down to ±0.3
down to ±0.1
2.1
±0.1
±1
±5,000
±30,000
≥3mm
11, 16, 23
Refer to Section 5.8.
-55 ~ +150
170
+370με over the temp. range of -50 ~ +25°C; -150με over +25 ~ +125°C; +200με over +125 ~ +200°C
Refer to ****
ECF-series
most widely used in commercial applications
constantan alloy
5±1
modified phenolic resin
50±5
phenolic resin
17.5±2.5
350, 700, 1000
down to ±0.3
down to ±0.1
2.1
±0.1
±1
±5,000
±30,000
710
≥3mm
9, 11, 16, 23, 27, 65
-30 ~ +80
100
series
features and suitable applications
metal foil
foil thickness (μm)
backing layer
backing thickness (μm)
encapsulation layer
encapsulation thickness (μm)
nominal resistance (Ω)
resistance tolerance (%)*
dispersion of resistance in one package (%)*
gauge factor
tolerance of gauge factor
dispersion of gauge factor in one production lot (%)
max. working strain (με)
strain limit (με)
fatigue life (load cycle)**
radius of curved surface for gauge bonding
STC codes
creep compensation***
working temp. range (°C)
max. temperature for dynamic applications up to two hours
(°C)
thermal output
max. working current
710 710 710 710
Refer to **** Refer to ****Refer to **** Refer to ****
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
3/17
Notes:
(*): The tolerance and dispersion of the gauge resistance is influenced by both the level of resistance and the gauge pattern. The
specific tolerance and dispersion can be found in for the specific gauge pattern of metal foil strain gauges (SG).
(***): The available creep codes can be found in Selection Chart for the specific gauge pattern of metal foil SG.
( ): The maximum working current of SG is determined by the heat dissipation of SG. The heat dissipation of SG depends on the
quality of bonding process (gluing and curing), the quality of sensor body material, and profile of the sensor body. For a given SG
resistance, the maximum excitation voltage of sensors is determined by the maximum working current of the SG. If there is a
sufficient heat dissipation channel underneath the SG, the maximum excitation voltage may be set to 12Vdc crossing the
Wheatstone bridge circuit of the SG of 350Ω resistance, to keep the working temperature of the Wheatstone bridge circuit within
the compensated temperature range of the sensor. Nevertheless, if the heat dissipation channel is not sufficient to dissipate the
heat, due to the limit of dimension or profile of sensor body, the heat which is created by the working current may cause a localized
increase of temperature in the Wheatstone bridge circuit. To keep the working temperature of the Wheatstone bridge circuit within
the compensated temperature range of the sensor, it is recommended to lower the maximum excitation voltage e.g., not higher
than 10Vdc crossing the Wheatstone bridge circuit of the SG of 350Ω resistance.
Selection Chart
(**): The fatigue life of metal foil SG was tested by tensile strain. The number of cycles of fatigue life of metal foil SG was tested and
obtained when the tensile strain level was set at 1000με. The lower the tested strain level, the more cycles or longer fatigue life of
the metal foil SG under test. When the tested strain level is lower than 200µɛ, the metal foil SG under test may have much longer
fatigue life.
****
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
4/17
Parameters Specifications / Description
EKF-series
available with various STC and EMC codes;for commercial applications requiring high resistance or effective modulus compensation
karma alloy
5±1
modified phenolic resin
50±5
phenolic resin
17.5±2.5
350, 700, 1000, 2000, 5000
down to ±0.3
down to ±0.1
2.03
±0.17
±1
±5,000
+15,000/-20,000
≥3mm
9, 11, 16, 23, 27, 65
M11, M16, M23
-30 ~ +80
100
series
features and suitable applications
metal foil
foil thickness (μm)
backing layer
backing thickness (μm)
encapsulation layer
encapsulation thickness (μm)
nominal resistance (Ω)
tolerance of resistance (%,*)
dispersion of resistance in one package (%,*)
gauge factor
tolerance of gauge factor
dispersion of gauge factor in one production lot (%)
max. working strain (με)
strain limit (με)
fatigue life (load cycle,**)
radius of curved surface for gauge bonding
STC codes
EMC codes
creep compensation (***)
working temp. range (°C)
max. temperature for dynamic applications up to two hours
(°C)
thermal output
max. working current
EKI-series
wide working temperature range with various STC and EMC codes;suitable for normal industrial, automotive and military applications which require high resistance or effective modulus compensation
5±1
modified polyimide resin
30±3
phenolic resin
17.5±2.5
350, 700, 1000, 2000, 5000
down to ±0.3
down to ±0.1
2.03
±0.17
±1
±5,000
+15,000/-20,000
≥3mm
9, 11, 16, 23, 27, 65
M23
Refer to Section 5.8.
-85 ~ +150
170
EKA-series
widest working temperature range; suitable for high temperature or cryogenic applications which require high resistance
karma alloy
5±1
advanced laminated polyimide
25±3
polyimide
12.5±2.5
350, 700, 1000, 2000, 5000
down to ±0.3
down to ±0.1
2.03
±0.17
±1
±5,000
+15,000/-20,000
≥3mm
11, 16, 23
NA
-195 ~ +200
220
EKL-series
suitable for normal industrial and military applications which require high resistance and effective modulus compensation
karma alloy
5±1
laminated polyimide
25±3
polyimide
17.5±2.5
350, 700, 1000, 2000, 5000
down to ±0.3
down to ±0.1
2.03
±0.17
±1
±5,000
+15,000/-20,000
710
≥3mm
11, 16, 23
M11, M16, M23
-55 ~ +150
170
+200με over the temp. range of -50 ~ +25°C
100με over the temp. range of +25 ~ +125°C-50με over the temp. range of +125 ~ +200°C+
Refer to ****
710710
karma alloy
710
Refer to Section 5.8.
Refer to ****
Refer to Section 5.8.
Refer to ****
Refer to Section 5.8.
Refer to ****
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
5/17
Selection Chart
1. Full-Bridge Gauges of Closed-Bridge Circuit
Pattern: FG(L)
schematic diagram
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers gauge length = 1.5mm
gauge length = 3.0mm
10.5mm (0.413inch)
10.5mm (0.413inch)
for bending beam
±15%
±10%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
N7, O
N7, O
(2)O
(2)O
(2)N3
(2)N31.5
(0.059)2.0
(0.094)
(d+5.5) x 6.2((d+0.217) x 0.244)
3.0(0.118)
2.5(0.098)
(d+6.9) x 6.4((d+0.272) x 0.252)
EK#-R-1.5FG(L)-(STC)-d-&-^
EK#-R-1.5FG -(EMC)-d-&-^
EC#-R-3FG -(STC)-d-&-^
EK#-R-3FG -(EMC)-d-&-^
EK#-R-3FG -(STC)-d-&-^
EK#-R-3FG -(EMC)-d-&-^
(L)
(L)
(L)
(L)
(L)
350(1), 700
1000(1), 2000
350(1), 700
R3R1
R2 R4
A B C D
d
R ≤ 350Ω
R > 350Ω
(3)SP, SD , SE, RL, EW, PW, HW
(3)SP, SD , SE, RL, EW, PW, HW
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
6/17
Pattern: FG(BL)
schematic diagram
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
A B C D
R1
R2
R3
R4
Application
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers gauge length = 1.5mm
gauge length = 3.1mm
6.0mm (0.236inch)
10.5mm (0.413inch)
for bending beam
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
N3, N1
N3, N1
(2)O
(2)O
(2)N4
(2)N4
1.5(0.059)
2.2(0.087)
(d+3.3) x 6.1((d+0.130) x 0.240)
3.1(0.122)
2.8(0.110)
(d+5.0) x 6.8((d+0.197) x 0.268)
EK#-R-1.5FG(BL)-(STC)-d-&-^
EK#-R-1.5 -(EMC)-d-&-^
EC#-R-3.1 -(STC)-d-&-^
EK#-R-3.1 -(EMC)-d-&-^
EK#-R-3.1 -(STC)-d-&-^
EK#-R-3.1 -(EMC)-d-&-^
FG(BL)
FG(BL)
FG(BL)
FG(BL)
FG(BL)
350(1), 700
1000(1), 2000
350(1), 700
Tolerance of Resistance±15%
±10%
R ≤ 350Ω
R > 350Ω
(3)SP, SD , SE, RL, EW, PW, HW
(3)SP, SD , SE, RL, EW, PW, HW
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
7/17
Pattern: FG(CL)
schematic diagram
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, L (2)O
(2)O
(2)O
(2)O
3.0(0.083)
2.1(0.114)
(d+7.5) x 7.0((d+0.150) x 0.236)
EC#-R-3FG(CL)-(STC)-d-&-^
EK#-R-3 -(EMC)-d-&-^FG(CL)
EK#-R-3 -(STC)-d-&-^FG(CL)
EK#-R-3 -(EMC)-d-&-^FG(CL)
350(1)
700(1), 1000
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers gauge length = 3.1mm 10.5mm (0.413inch)
for bending beam
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
R1
R4 R2
R3
A DB C
A DB C
±15%
±10%
R ≤ 350Ω
R > 350Ω
(3)SP, SD , SE, RL, EW, PW, HW
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
8/17
Pattern: FF(L)
schematic diagramequivalent circuit
(ԑ: strain)
R1R2
R3R4
A
B
D
C’
ԑԑ
C
ԑԑ
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers gauge length = 2.4mm
gauge length = 3.1mm
9.5mm (0.374inch)
10.5mm (0.413inch)
for bending beam
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, I, B, A, L
F, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)O
(2)N4
(2)N4
(2)N5
(2)N5
N6, N5, N4, N3, N2, O
(2)O
2.4(0.094)
2.4(0.094)
(d+6.5) x 7.0((d+0.256) x 0.276)
3.1(0.122)
3.2(0.126)
(d+7.4) x 8.4((d+0.291) x 0.331)
EC#-R-2.4FF(L)-(STC)-d-&-^
EK#-R-2.4 -(EMC)-d-&-^
EK#-R-2.4 -(STC)-d-&-^
EK#-R-2.4 -(EMC)-d-&-^
EC#-R-3.1 -(STC)-d-&-^
EK#-R-3.1 -(EMC)-d-&-^
EK#-R-3.1 -(STC)-d-&-^
EK#-R-3.1 -(EMC)-d-&-^
FF(L)
FF(L)
FF(L)
FF(L)
FF(L)
FF(L)
FF(L)
350(1)
700(1), 1000
350(1), 700
1000(1), 2000
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
2. Full-Bridge Gauges of Open-Bridge Circuit
B A DC C’
R1
R4
R3
R2
±1%
(3)SP, SD , SE, RL, EW, PW, HW
(3)SP, SD , SE, RL, EW, PW, HW
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
9/17
Pattern: FF(AL)
schematic diagram
equivalent circuit
(ԑ: strain)
R1R2
R3R4
A
B
D
C’
ԑԑ
C
ԑԑ
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centersgauge length = 1.5mm
gauge length = 2.8mm
10.5mm (0.413inch)
15.0mm (0.591inch)
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, I, B, A, L
F, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
N7, N3
N7, N3
(2)O
(2)O
(2)N3
(2)N3
(2)O
(2)O
1.5(0.059)
2.5(0.098)
(d+3.4) x 6.6((d+0.134) x 0.260)
2.8(0.110)
2.3(0.091)
(d+4.0) x 6.0((d+0.157) x 0.236)
EC#-R-1.5FF(AL)-(STC)-d-&-^
EK#-R-1.5FF(AL)-(EMC)-d-&-^
EK#-R-1.5FF(AL)-(STC)-d-&-^
EK#-R-1.5FF(AL)-(EMC)-d-&-^
EC#-R-2.8FF(AL)-(STC)-d-&-^
EK#-R-2.8FF(AL)-(EMC)-d-&-^
EK#-R-2.8FF(AL)-(STC)-d-&-^
EK#-R-2.8FF(AL)-(EMC)-d-&-^
350(1)
700(1), 1000
1000(1), 2000
350(1)
BA
D
C
C’
R1
R4
R3
R2
BCM
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
10/17
Pattern: FF(BL)
(ԑ: strain)
R1R2
R3R4
A
B
D
C’
ԑԑ
C
ԑԑ
schematic diagram
equivalent circuit
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers
gauge length = 1.5mm
gauge length = 2.1mm
gauge length = 3.1mm
6.0mm (0.236inch)
6.0mm (0.236inch)
10.5mm (0.413inch)
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, I, B, A, L
F, L
F, L
F, I, A, L
F, I, A, L
F, I, A, L
F, L
F, L
F, L
(2)N3
(2)N3
N5, N4, N3
N5, N4, N3
N5, N4, N3
N5, N4, N3
N5, N3, N2, O
N5, N3, N2, O
N5, N3, N2, O
N5, N3, N2, O
1.5(0.059)
2.2(0.087)
(d+3.2) x 6.2((d+0.126) x 0.244)
2.1(0.083)
2.9(0.114)
(d+3.8) x 6.9((d+0.150) x 0.236)
3.1(0.122)
2.8(0.110)
(d+4.8) x 7.0((d+0.189) x 0.276)
EK#-R-1.5FF(BL)-(STC)-d-&-^
EK#-R-1.5FF(BL)-(EMC)-d-&-^
EC#-R-2.1FF(BL)-(STC)-d-&-^
EK#-R-2.1FF(BL)-(EMC)-d-&-^
EK#-R-2.1FF(BL)-(STC)-d-&-^
EK#-R-2.1FF(BL)-(EMC)-d-&-^
EC#-R-3.1FF(BL)-(STC)-d-&-^
EK#-R-3.1FF(BL)-(EMC)-d-&-^
EK#-R-3.1FF(BL)-(STC)-d-&-^
EK#-R-3.1FF(BL)-(EMC)-d-&-^
350(1)
700(1), 1000
1000(1), 2000
350(1), 700
350(1), 700
B A DC C’
R1
R4
R3
R2
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
11/17
Pattern: FF(CL)
schematic diagram
equivalent circuit
R1R2
R3R4
A
B
D
C’
ԑԑ
(ԑ: strain)
C
ԑԑ
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing
Dimensions
L x W
mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, L (2)O
(2)O
(2)O
(2)O
3.2(0.126)
1.5(0.059)
(d+7.4) x 6.6((d+0.291) x 0.260)
EC#-R-3.2FF(CL)-(STC)-d-&-^
EK#-R-3.2 -(EMC)-d-&-^
EK#-R-3.2 -(STC)-d-&-^
EK#-R-3.2 -(EMC)-d-&-^
FF(CL)
FF(CL)
FF(CL)
350(1)
700(1), 1000
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
Distance (d) between Two Grid Centers gauge length = 3.2mm6.4mm (0.252inch)
8.4mm (0.331inch)
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
R1
R2 R4
R3
B CC’A D
C D
B C’A
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
12/17
3. Full-Bridge Gauges with 90° Grids
Pattern: EB
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
schematic diagram
A B C D
R1 R2
R3R4
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
±15%
±10%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, I, B, A, L
F, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)N2
(2)N2
(2)N2
(2)N2
N2, O
N2, O
(2)N2
(2)N2
1.8(0.071)
2.2(0.087)
8.5 7.40.335 0.291
x ( x
)
2.3(0.091)
2.7(0.106)
8.6 x 7.2(0.339 x 0.283)
EC#-R-1.8EB-(STC)-&-^
EK#-R-1.8EB-(EMC)-&-^
EK#-R-1.8EB-(STC)-&-^
EK#-R-1.8EB-(EMC)-&-^
EC#-R-2.3EB-(STC)-&-^
EK#-R-2.3EB-(EMC)-&-^
EK#-R-2.3EB-(STC)-&-^
EK#-R-2.3EB-(EMC)-&-^
350(1)
700(1), 1000
1000(1), 2000
350(1)
R ≤ 350Ω
R > 350Ω
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
13/17
schematic diagramequivalent circuit
Pattern: EB(A)
B A DC C’
R1 R4
R3R2
(ԑ: strain)
R1R2
R3R4
A
B
D
C’
ԑԑ
C
ԑԑ
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, I, B, A, L
F, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)N2
(2)N2
(2)N2
(2)N2
N2, O
N2, O
N2, O
N2, O
1.8(0.071)
2.3(0.091)
8.6 x 7.6(0.339 x 0.299)
2.3(0.091)
2.7(0.106)
8.6 x 7.5(0.339 x 0.295)
EC#-R-1.8EB(A)-(STC)-&-^
EK#-R-1.8EB(A)-(EMC)-&-^
EK#-R-1.8EB(A)-(STC)-&-^
EK#-R-1.8EB(A)-(EMC)-&-^
EC#-R-2.3EB(A)-(STC)-&-^
EK#-R-2.3EB(A)-(EMC)-&-^
EK#-R-2.3EB(A)-(STC)-&-^
EK#-R-2.3EB(A)-(EMC)-&-^
350(1)
700(1), 1000
1000(1), 2000
350(1)
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
14/17
Pattern: EB(B)
schematic diagram
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
R1
R2
R3
R4
A B C D
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
±15%
±10%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
N6, O
N6, O
(2)N2
(2)N2
(2)N2
(2)N2
1.8(0.071)
1.8(0.071)
7.9 x 6.0(0.311 x 0.236)
2.3(0.091)
2.7(0.106)
8.6 x 7.4(0.339 x 0.291)
EK#-R-1.8EB(B)-(STC)-&-^
EK#-R-1.8 -(EMC)-&-^
EC#-R-2.3 -(STC)-&-^
EK#-R-2.3 -(EMC)-&-^
EK#-R-2.3 -(STC)-&-^
EK#-R-2.3 -(EMC)-&-^
EB(B)
EB(B)
EB(B)
EB(B)
EB(B)
350(1)
700(1), 1000,1500
350(1), 1000,1200
R ≤ 350Ω
R > 350Ω
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
15/17
equivalent circuit
(ԑ: strain)
R1R2
R3R4
A
B
D
C’
ԑԑ
C
ԑԑ
schematic diagram
R1
R2
R3
R4
B C A D C
BCM
Pattern: EB(C)
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)O
(2)O
(2)O
(2)O
(2)O
(2)O1.8(0.071)
2.0(0.079)
7.9 x 6.2(0.311 x 0.244)
2.3(0.091)
2.7(0.106)
8.6 x 7.4(0.339 x 0.291)
EK#-R-1.8EB(C)-(STC)-&-^
EK#-R-1.8 -(EMC)-&-^
EC#-R-2.3 -(STC)-&-^
EK#-R-2.3 -(EMC)-&-^
EK#-R-2.3 -(STC)-&-^
EK#-R-2.3 -(EMC)-&-^
EB(C)
EB(C)
EB(C)
EB(C)
EB(C)
350(1)
700(1), 1000,1500
350(1), 1000,1200
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
16/17
Pattern: EB(D)
schematic diagram
equivalent circuit
(ԑ: strain)
R1 R2
R3R4
A
B
C
D
ԑԑ
ԑ
ԑ
A B C D
R1
R2R3
R4
Application
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Bridge Unbalance
±0.3mV/mA
±0.8mV/mA
±2.0mV/mA
R ≤ 350Ω
350Ω < R ≤ 1000Ω
R > 1000Ω
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)O
(2)O
(2)O
(2)O
(2)O
(2)O1.2(0.071)
1.7(0.071)
7.6 x 5.8(0.311 x 0.205)
1.9(0.091)
2.4(0.106)
9.0 x 7.0(0.339 x 0.291)
EK#-R-1.2EB(D)-(STC)-&-^
EK#-R-1.2E -(EMC)-&-^
EC#-R-1.9E -(STC)-&-^
EK#-R-1.9E -(EMC)-&-^
EK#-R-1.9E -(STC)-&-^
EK#-R-1.9E -(EMC)-&-^
B(D)
B(D)
B(D)
B(D)
B(D)
350(1)
700(1), 1000
350(1)
Tolerance of Resistance±15%
±10%
R ≤ 350Ω
R > 350Ω
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,
BCM SENSOR TECHNOLOGIES BVBA
Brechtsebaan 2
B-2900 Schoten - Antwerpen, BELGIUM
Industriepark Zone 4, Tel.: +32-3-238 6469
Fax: +32-3-238 4171
website: www.bcmsensor.com
email: [email protected]
Full-Bridge Strain Gauges for Force Transducers
17/17
schematic diagramequivalent circuit
Pattern: EB(E)
(ԑ: strain)
R1
R3R4
A
B
D
ԑԑ
ԑԑ
R2
C’
C
BCM
R4
R2
R3
R1
D C B A C
Notes: (1) Lower resistances are available for large-volume orders.
(2) Other creep codes are available for large-volume orders.
(3) Only necessary to select if one wants to use the karma gauges.
R (Ω) Nominal
Resistance
Gauge Length
mm(inch)
Grid Width mm
(inch)
Backing Dimensions
L x W mm
(inch)
Ordering Code Format
# Backing Material
STC or
EMC
& Creep Code
^ Solder-Pad Finishing
11, 16, 23
11, 16, 23
11, 16, 23
M11, M16, M23
M11, M16, M23
M11, M16, M23
F, I, B, A, L
F, L
F, I, A, L
F, I, A, L
F, L
F, L
(2)O
(2)O
(2)O
(2)O
(2)O
(2)O1.2(0.071)
1.7(0.071)
7.6 x 5.8(0.311 x 0.205)
1.9(0.091)
2.4(0.106)
9.0 x 7.0(0.339 x 0.291)
EK#-R-1.2EB(E)-(STC)-&-^
EK#-R-1.2 -(EMC)-&-^
EC#-R-1.9 -(STC)-&-^
EK#-R-1.9 -(EMC)-&-^
EK#-R-1.9 -(STC)-&-^
EK#-R-1.9 -(EMC)-&-^
EB(E)
EB(E)
EB(E)
EB(E)
EB(E)
350(1)
700(1), 1000
350(1)
Application
Tolerance of Resistance
Gauge Factor constantan
karma
Dispersion of Gauge Factor per Production Lot
5 Types of Backing Material (F.I.B.A.L.)
vs Gauge Working Temperature Range
F: modified phenolic resin
I: modified polyimide resin
B: laminated polyether-ketone
A: advanced laminated polyimide
L: laminated polyimide
for bending beam
±1%
±0.2%
2.1±0.1
2.03±0.17
±1%
-30 ~ +80°C
-85 ~ +150°C
-45 ~ +150°C
-195 ~ +200°C
-55 ~ +150°C
Max. Difference of Resistance over Four Grids
The listed specifications and dimensions are subject to change without prior notice.
(3)SP, SD , EW, PW, HW
SE, RL,
(3)SP, SD , EW, PW, HW
SE, RL,