manufacturing statusreview spectrom€¦ · manufacturing statusreview spectrom scientific platform...
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Manufacturing Status Review
SPECTROMScientific Platform for the Exact Control of Thermally
Regulated Optical Mechanisms
Team: Cameron Coupe, Jeff Ellenoff, Jaevyn Faulk, Zach Fellows, Sarah Levine, Eli McKee, Josh Mellin, Tyler Talty, Josh Whipkey, Josh White
Customer: Ball Aerospace & Technologies Corp.Joe Lopez
Advisor: Bob Marshall1
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Project Purpose
• Optical bench costly carbon fiber composites• Reduce cost by using aluminum frame• Thermal expansion for active control mechanism
2
Source
Detector
Overview Schedule Manufacturing Budget
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Project Statement
active control system thermal expansion alignment
aluminum optical bench
3Overview Schedule Manufacturing Budget
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Concept of Operations
4
1. The test bed is heated to induce alignment error
between two planes.
3. Heating is applied to the Alignment Correction System
(ACS) to maintain alignment of the two planes.
4. Displacement and temperature data are recorded
and stored by the electronics package.
2. Alignment error is measured by the Alignment
Measurement System (AMS).
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Critical Project Elements
5
Critical Project Elements System Solution
Active control of plane alignment using expansion of a high CTE material Alignment Correction System (ACS)
Accurate measurement of plane alignment in three-axes
Alignment Measurement System (AMS)
Introduction of controlled thermally induced alignment error
Test Bed
Thermal control and measurement of heated elements Electronics Package
Overview Schedule Manufacturing Budget
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Levels of SuccessTest Demonstration Unit
(TDU)Alignment Correction
System (ACS)Alignment Measurement
System (AMS)Electronics Package
Level 1
• Induce > 100µm of plane alignment translation error over ΔT=10K
• Correct plane alignmentto within ±2 µm of original position within 120seconds
• Measure translation displacement of two planes with 1.75 µm accuracy
• Heater control to enable translation correction within ±2 µm
Level 2
• Induce customer-provided temperature profile to within 0.5K at all times
• Know temperature of actuators to within ±0.3 Kat all times
• Maintain plane alignmentwithin ±2µm for 95%of the test bed heating profile
• Active temperature control using thermistor feedback
• Record time, position and temperature data for duration of testing
Level 3
• Induce > 50µm rotational displacement over ∆Tof 10Kstarting from 296.15K
• Maintain plane alignment within ±2 µm and ±20µrad for 95%of the test bed heating profile
• Measure translation and rotation displacements to ±1.75 µm and ±15.3 µradaccuracy
• Record, and display real-time position and temperature data at a rate of at least 1measurement per second
6Overview Schedule Manufacturing Budget
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Functional Block Diagram
7
Aluminum Test Bed
Magnesium Actuator Heaters
NI myRIOTest Bed Heaters
Thermistors
Converted Power Supply Alignment
Control
Test Bed Temperature
ControlLabVIEWLVDTs
AMS ACS
Test Bed Electronics
Magnesium Actuators Thermistors
Test Bed Temp
Control
Overview Schedule Manufacturing Budget
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8
Design Overview
8
Test Bed HeatedAluminum Actuators
Stainless Steel PlateAlignment
Measurement SystemHeated
Magnesium Actuators
Stainless Steel “Exocore”
LVDTsTop and Bottom Mounting Plates
Alignment Correction System
Carbon Fiber Supports
Epoxy Insulation Washers
Heaters
21.5”(546mm)
14.0”(355.6mm)
3.25”(82.6mm)
6.00’’(127mm)
Verification LVDT and Support
Tesseract
Temp Sensors
Overview Schedule Manufacturing Budget
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Design Updates
9Overview Schedule Manufacturing Budget
• Expansion of Exocore• Relocation of 4th LVDT
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Overview
10
Critical PathProgressMilestones
Slide Submission MSR presentation
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Testing Schedule
11
Progress
MarginIncomplete
Milestones
Slide Submission
MSR presentation
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12
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Structure Manufacturing
13
Manufactured Components Purchased Components
Top mounting plates LVDT mounting clamps (x4)
Bottom mounting plate Fasteners (x18)
Aluminum actuators (x6)
Magnesium Actuators (x3)
Exocore
Tesseract plate
Carbon fiber supports
Epoxy washers
Carbon fiber plugs
Manufactured
Not Manufactured
Overview Schedule Manufacturing Budget
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Manufacturing Schedule
14
Complete
MarginIncomplete
Milestones
Slide Submission MSR presentation
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Manufacturing: Carbon Fiber Rods
15
8.00”
Overview Schedule Manufacturing Budget
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Manufacturing: Epoxy Washers
16
Slide Submission
Margin
MSR presentation
Overview Schedule Manufacturing Budget
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Manufacturing: Carbon Fiber Rod Plugs
17Overview Schedule Manufacturing Budget
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Electronics Package CONOPS
myRIOPC with
LabVIEW VI
LVDTs(x4)
LVDT Signal Conditioning
Thermistor Signal Conditioning
Electronics BoardAMS
Thermistors(x6)
ACS
Heaters(x3)
Thermistors(x12)
Test Bed
Heaters(x6)
Data Storage Device
Solid-State Relays(x12) Switch
+115V Power Supply
DigitalAnalogPower
18Overview Schedule Manufacturing Budget
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Electronics Package Status
myRIOPC with
LabVIEW VI
LVDTs(x4)
LVDT Interface PCB
Thermistor Interface PCB
Electronics BoardAMS
Thermistors(x6)
ACS
Heaters(x3)
Thermistors(x12)
Test Bed
Heaters(x6)
Data Storage Device
+115V Power Supply
19Overview Schedule Manufacturing Budget
Acquired/Built -In Development -Need to Order -
Solid-State Relay PCB
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Electronics Package Status
20Overview Schedule Manufacturing Budget
LVDT Interface Heater Control Thermistor Interface
Power
AltiumSchematic
AltiumSchematic
AltiumSchematic
AltiumSchematic
Breadboard Test Circuit
Test Relay w/ myRIO
Wire Thermistors
Test Voltage Divider
Concepts
Manually Test & Verify Output
Gains 7Days
Breadboard Test Circuit4days
Finalize and Order PCBs21 days
Breadboard Circuit
Integrate w/ Software7 days
Manually Test Heater Control
14 days
Calibrate Thermistors7 days
Integrate w/ Software14 days
Integrate w/ Software14 days
Manually Test Thermistor
Interface3days
LegendComplete -To Do -
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Manufacturing Electronics: Possible Complications
21Overview Schedule Manufacturing Budget
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Electrical Manufacturing
22
Progress
MarginIncomplete
Milestones
Slide Submission MSR presentation
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23Overview Schedule Manufacturing Budget
Software Overview
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24Overview Schedule Manufacturing Budget
Software Flow Diagram
Read Thermistors
𝑉;= 𝑉<=
=>=?@A
Voltage Conversion
𝑇C = D𝑇E𝑛
G
EHI
Time Averaging Compare to Profile
T
t
Test Bed Heaters ON/OFF
Read LVDTsVoltage Conversion
𝑉J= 𝑉KLMNNO
𝑙C = D𝑙E𝑛
G
EHI
Time AveragingCalculate Displacements
𝛿
tan(𝛼)
tan(𝛽)
=
12
14
14
−1𝐿
12𝐿
12𝐿
0 −1𝐿
1𝐿
ℓI
ℓZ
ℓ[
⋅
ACS Heaters ON/OFF
Data Storage and Visual Display
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Software Status: LabView
25Overview Schedule Manufacturing Budget
LVDT Interface
Read a single LVDT
Convert voltages to displacements
Time average3 days
Implement system of equations
2days
Thermistor Interface
Read a single thermistor
Convert voltages to temperatures
Time average3 days
Multiplex 32channels3days
Heater Control
Interface with SSRs7days
Generate customer temp
profile3days
Implement control logic14 days
Visual Display and Data Storage
Design VI3days
Save data to external .txt file
2days
LegendComplete -To Do -
Troubleshoot and fine-tune21 days
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Software Schedule
26
Slide Submission MSR presentation
Progress
MarginIncomplete
MilestonesComplete
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Budget
$0
$1,000
$2,000
$3,000
$4,000
$5,000
Predicted Actual
Need to BuyMarginTest for CDRElectronicsSensorsHeatersMaterials
$3972
27Overview Schedule Manufacturing Budget
$3723.31
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BACKUPS
28
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Drawing Package
29
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Mechanical Drawings: Long Aluminum Actuators
30
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Mechanical Drawings: Aluminum Actuators
31
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Mechanical Drawings: Magnesium Actuators
32
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Mechanical Drawings: Back Mounting Plate
33
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Mechanical Drawings: Tesseract
34
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Mechanical Drawings: Carbon Fiber Plug
35
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Mechanical Drawings: Carbon Fiber Supports
36
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LVDT PCB Schematic
37
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Thermistor Schematic
38
Repeats 18x
Multiplexer & myRIOInterface
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Single Heater Control Schematic
39
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All Heaters Control Schematic
40
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Power Board PCB Schematic
41
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Thermistor Calibration 1
42
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Thermistor Calibration 2
43
Thermistor Signal Conditioning
myRIOPC with
LabVIEW VI
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LVDT 𝑅cdCG Refinement
44
Extra in-parallel resistor pads for
refining 𝑅cdCG value
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Relay myRIO compatibility
45
myRIO
A Relay 1
Relay 2
Relay 3
…
Relay 12
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46Overview Schedule Manufacturing Budget
1. Read a single LVDT and get meaningful data √2. Convert voltages to displacements √3. Time averaging √4. Implement system of equations for linear/rotational displacements
Software: LVDTs
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47Overview Schedule Manufacturing Budget
Software: Thermistors1. Read a single thermistor and get meaningful data √2. Convert voltages to temperatures √3. Time averaging √4. Multiplex 32 signals
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48Overview Schedule Manufacturing Budget
Software: Heater Control1. Generate customer-provided temperature profile √2. Interface with SSRs √3. Implement control conditionals
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49Overview Schedule Manufacturing Budget
Software: Data Display/Storage1. Save all data in external .csv file2. Design VI
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Budget: Test for CDRItem Cost
Al Rods $43.98Mg Rods $38.44Test Heater $55.00Demo Board $155.4916 bit ADC $14.95Bread Boards $54.75Total: $406.59
50
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Budget: Materials
Item Cost
Carbon Fiber Rods $144.45Screws $143.72Plates and Shims $502.05Epoxy $63.45Total: $853.67
51
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Budget: Electronics/SensorsItem Cost
Extender cable for myRio $24.74Relays $86.57Total: $111.31
52
Item Cost
LVDTs $1,238.40Thermistors $29.05Total: $1,267.45
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Budget: Electronics/Need to PurchaseItem Cost
Extender cable for myRio $24.74
Relays $86.57Total: $111.31
53
Item Cost
Carbon Fiber Drill bit $25New Relays $225PCBs $300Total: $550