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JoseLuisSirventBlasco - 24 Oct 2014
BWS Optical Position Sensor
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Principle
ORIGINAL SYSTEM SCHEMATIC:
ALTERNATIVE SYSTEM SCHEMATIC:
<a name="Optics"> </a>
Simulations on Zemax
- Download Simulation Files - Zemax Simulations for the focuser containing F_Silica lenses from Asphericon (A12-15FPX-S-C and A12-20FPX-S-C)
ORIGINAL SYSTEM SIMULATIONS
The estimated distances with Zemax are slightly different due to calibration mismatch on "Fibre-Lens" distance.
ALTERNATIVE SYSTEM SIMULATIONS
Physical Views
Pieces Detail:
Mounted Dimensions:
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Optomechanics
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Feedthough |
Fibre Patchcord |
Focuser |
Optical Encoder Disc |

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Optoelectronics
- Laser diode links:
- Datasheet_Laser_PL13AS001ST61-S-0.pdf - This is the used on the box, when doing the order the provider informed of this change due to stock.
- "Regarding this order, our supplier has informed us that they are currently unable to obtain the laser diode which is required to build the PL13BN002ST71 -0-0 you ordered. As an alternative we could supply PL13AS002ST61 _S-0 at the same price. The power into the fiber will be the same and the only significant difference between the two devices is the pinout. The pinout of the PL13AS is shown in the attached drawing; could you please let me know if this is acceptable? (Please note that the drawing states the output power as 1mW, but your lasers will be set up to emit 2mW as we agreed)." Mike Hodges [m.hodges@lasercomponents.com
- Laser Diode Order - DAI Document 5182776
- See also: PL13/15FP Series Laser Diode Modules from Laser Components
- From : http://www.lasercomponents.com/de-en/product/laser-diodes-with-fiber-connection-cw-and-pulsed/
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The Box |
SMF Lasers and Photodiodes |
Bank of Comparators |
Circulator |
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Schematics for Laser Diode Power Control through DAC (0-1V) and Status check through ADC (0-1) |
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Schematics for PhotoDiode analog conditioning (for ADC sampling) and optional TTL digital outputs through comparators |
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Signal Processing Scripts
- Matlab GUI script - Issue BIW 483 where the needed Matlab files for the GUI and a report about it's use are hosted (2013_10).
<a name="Performance"></a>
Performance Report
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Set-up used on the performance tests |
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Performance Results (Scan Region) |
Performance Results (Revolution-Scan Region) |
Test performed on SPS Prototype
Tests with different disk samples
- Preliminary testing performed on 21/09/2015:
Topic revision: r4 - 2016-10-11
- unknown