transducers for force, torque, pressure and high-precision ... file“building up reference...

ldquoBuilding up reference measuring chains out of calibration

transducers for force torque pressure and high-precision amplifiersrdquo

How to choose the right calibration unit and what to keep in mind

in terms of measurement uncertainty

HBM public

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BM

Andreacute Schaumlfer Dr-Ing

International Product Management

PhD in measuring technique amp precision instruments

holds 3 patents gt 100 white papers published

26 years experience in sensor technology

Product and application manager Calibration

Speaker

Dr Andreacute Schaumlfer

International Product Management

HBM Test amp Measurement

Phone +49 6151 803 224

Email andreschaeferhbmcom

HBM public 2

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BM

The webinar contents in detail

bull General introduction to precision instruments with

recommendations regarding measurement uncertainty and long-

term stability

bull Force torque amp pressure transducers of highest accuracy

bull DMP41 the worldrsquos most precise amplifier for strain gauge based

transducers

bull The choice and use of calibration units

Content

3 HBM public

HBM Precision origin from needs in load and force measurements

4

Quality assurance at HBM

(around 1970)

HBM public

Manfred Kreuzer

former head of RampD at HBM

Manfred Peters

former vice president of PTB

The origin of the DMP series ndash HBMrsquos flagship

5

Most important milestone in the history of HBM Precision instruments

Digital compensator

DK 38S6

Introduction of DMP series

Thanks to two mens hard work

HBM public

Used in all calibration levels in Germany

6

Incre

asin

g a

ccura

cy

szlig PTB (German National Metrology Institute)

Working standard calibration laboratory eg HBM

Industrial applications

Accredited laboratories DKD (DAkkS) eg HBM

Intercomparison in between national institutes-gt tra

ce

ab

ility

HBM public

History of HBM Precision instruments time line until 1990

7

1 9 9 0

C a li b r a t i on S e r v i c e ( D K D )

HBM first German

no w D A kk S

D K 3 8

1 9 8 2

D K 3 8 S 6

1 9 8 3

D M P 3 9

1 9 8 0 D K 3 7 A

1 9 7 8

D K 3 7

1 9 7 3

T i m e l i n e

HBM public

8

2 0 1 0

M L 3 8

1 9 9 5 D M P 4 0

1 9 9 6

M L 3 8 B

2 0 0 5

D M P 4 1

2 0 1 3

History of HBM Precision instruments (II) time line until today

HBM public

DMP40 used to be the worldwide standard at National Metrology

Institutes standard institutes around the world you can rely on

Main laboratories using the instrument

bull Force laboratories

bull Torque laboratories

bull Pressure laboratories

bull Mass laboratories

bull mVV laboratories

DMP 40 so far gtgtReferenceltlt worldwide

9 HBM public

Force laboratories Torque laboratories

Pressure laboratories Manufacturing of transducers

Possible application fields

HBM public

How to reach the best overall uncertainty of the measuring chain

11

amp

overall uncertainty of the measuring chain

c = a2+ b2

c = total accuracy of measuring chain

a = accuracy of transducer (eg force or torque)

b = accuracy of precision instrument

HBM public

New design of DMP41

HBM public

New design of DMP41

HBM public

14

Block diagramm of the new instrument

02072015 Dr A Schaumlfer HBM public

1) All versions allow parallel (simultaneous) measurements

DMP41-T2 version -Two channel high-precision amplifier

DMP41-T6 version- Six channel high-precision amplifier

2) excellent accuracy does not allow further improvement due to physical limitation

However accuracy class 00005 is even maintained at 10 Vm electric field strength EMC

(previously under these conditions DMP 40 was accuracy class 0005 only )

3) Totally new graphical user interface (GUI) with touch screen

The most important improvements on the instrument at a glance (I)

HBM public

Multiple possibilities for operation

HBM public

4) bdquoBackground Calibrationldquo-

No freezing but continuous proceeding of the live measurement

5) Up-to-date interfacing for current laboratory environment

Ethernet

USB Device

USB Master

The most important improvements on the instrument at a glance (II)

HBM Dr A Schaumlfer 2013

Use direct link to product page on HBMcom for more

details httpwwwhbmcomdmp41

Totally four versions available from stock

1-DMP41-T2 Desk top housing with 2 channels measuring simultaneously

1-DMP41-T6 Desk top housing with 6 channels measuring simultaneously

1-DMP41-E2 Rack mount housing with 2 channels measuring simultaneously

1-DMP41-E6 Rack mount housing with 6 channels measuring simultaneously

The new rack mounted

versions of DMP41 will open

up more sales opportunities

in each country

Build-up system for force calibration Class 00 acc ISO 376

Force

Force competence - at a glance

19

EMRP JRP-s14 Force Metrology bdquoForce traceability within the meganewton rangeldquo

HBM public

Torque

20

Torque competence ndash at a glance

Application done

on

EMRPIR

Torque

Metrology

bdquoTorque

traceability

within

the meganewton

meter rangeldquo

HBM public

Pressure competence ndash at a glance

21

Kobata W Sabuga et al ldquoFinal Report on

Supplementary Comparison APMPMP-S8 in

Hydraulic Gauge Pressure from 100 MPa to 1000

MPardquo The Asia-Pacific Metrology Programme

(APMP) and the European Association of National

Metrology Institutes (EURAMET) 1000 MPa

Hydraulic pressure interlaboratory comparation

see

httpwwwbipmorgutilscommonpdffinal_reportsM

P-S8APMPMP-S8pdf

Top Class P3M as Reference transducer in

ldquoIntercomparationrdquo in between Germany and Japan

P3TCP Top Class

Pressure

EMRP JRP IND03 HighPRESldquo

Project ldquoHigh pressure metrology

for industrial applicationsrdquo

HBM public

Calibration Units

ndash simulation of strain gage full bridges

for calibration of amplifiers

ndash BN100A most precise simulation worldwide for 225 Hz carrier

frequency

BN100A K3607

Calibration Units

simulation of strain

gage full bridges

for calibration of

amplifiers

BN100A

K3607

BN100A most precise simulation worldwide for 225 Hz carrier frequency

Class 5 ppm

Class 25 ppm

HBM public

Inductive calibration unit

BN100 Basic Circuit

Inductive divider based precision instrument

02072015 Dr A Schaumlfer HBM

24

Two components ndash both realized by inductive voltage divider

DMP series

Electronic Circuit for Error Correction

very accurate and very long term stable because their accuracy is only defined

by the ratio of the number of windings

HBM public

copy H

BM

wwwhbmcomwebinars

More detailed information

25 HBM public

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BM

bull httpwwwhbmcomenmenuproductsmeasurement-electronics-softwarespecialized-data-acquisition-systemsprecision-amplifiers-calibration-instruments

More detailed information on precision instruments

26 HBM public

copy H

BM

27

wwwhbmcomcalibration

More detailed information on calibration services

HBM public

Events in the calibration market in 2015 so far

28

Event Date Location

South East Asia Customer Seminar Thailand

(Singapore Malaisia and Indonesia Scientists as

well)

Feb 10th

2015

NIMT

Bangkok

Thailand

Session Mechanical sensors on ldquoSENSOR 2015rdquo

international conference along with Sensor + Test

Conference amp Exhibition

May 19-21

2015

Nurnberg

Germany

Session Mechanical sensors on bdquoInnovationstag

Messtechnikldquo

Innovation in measuring technology

May 27th

2015

Vienna

Austria

Delegation visit of Tokyo Certified Measures

Society Japan

June 30th

2015

Darmstadt

Germany

02072015 Dr A Schaumlfer HBM public

bull Please contact us for further questions We look forward to your email emarketinghbmcom

bull Or email the speakers directly andreschaeferhbmcom

bull See other webinars by HBM wwwhbmcomwebinars

bull Visit us at the major calibration event in 2015

We invite you to the XXI World Congress IMEKO which is to be held in Prague in 2015 (August 30th to September 4th) HBM is Gold sponsor to the event got 4 presentations and is present by a booth as well

Any questions

29 HBM public

International

Measurement

Confederation