| April 2, 2014 |
Time Contribution |
Christopher D |
Work - R&D optics |
10.00 HR |
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Tested the first fully functional PDMS transducer for 1mm PMMA optical fiber. Version 4
https://docs.google.com/document/d/1uZMmZkEybiojdUYSMFPp9I3xap37XtOesP1dRCDqW1A/edit#heading=h.y4z5e2458h1e
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Make Prototype PMMA fiber joint-type transducer
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Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
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| March 12, 2014 |
Time Contribution |
Tibi |
Work - Training others |
0.50 HR |
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Worked with Christopher on the PDMS joint-type transducer with PMMA fiver, for the visible Mosquito.
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| March 12, 2014 |
Time Contribution |
Christopher D |
Work - Technician experimental |
24.00 HR |
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Explored different methods for PDMS molding
https://docs.google.com/document/d/1yNVQON_tQFgGTaOSQy6VZkjL1UDL7KexODkTEEGmJ2E/edit
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Design PDMS molding techniques and Molding process for polymer
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Method - Molding process for polymer: PDMS Curing Onto 3D Printing Resin
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| Feb. 26, 2014 |
Time Contribution |
Francois |
Work - R&D optics |
0.00 HR |
|
2013 May 21 (5.5 h + 1.5 h):
prepare 5 joint-type transducers in angle using Ivan's pre-bent glass capillaries. Result: broke one, fried one, one has a damaged mirror. 2 left to connectorize. Connectorization failed. 0 transducer made....
2013 May 22 (4h):
goal: mirror 4 levers, connectorize one transducer.
silvering quality tests: played with number of silver layers and reaction time:
red lever: 3 times one minutes shaking. Intensity = ?
one black strip lever: one time one minute shaking. Intensity = ?
two black strips lever: one time 2 minutes. Intensity = ?
Arranged power supply memories for shrinking:
M1 = 0
M2 = 0.32 A x 0.67 V = 0.2 W
M3 = 0.4 x 1 = 0.4 W
M4 = 0.6 x 0.1 = 0.6 W
Determined ideal length for delivery fiber at the very beginning (before cleaving 1 cm both side) = 16.7 cm
Result: made one pre-bent joint-type transducer.
2013 May 24 (0.5 h):
tested transducer with LED Mosquito: it works
2013 June 5 (7.5 h)
goals: test new LED-Mosquito with amplification + filter
1) signal tests on LED-Mosquito: signal without anything plugged (no delivery fiber): 0.995-1.065 V (average 1030 mV), noise = 70m V.
+ delivery fiber: 1.205-1.125 V = 80mV noise (average baseline 1165 mV), so the delivery fiber increases reflexion of 135 mV.
Reference: with industrial mirror max signal goes to + 10.3 V (note that signal goes up now when light goes back to the PD, it was the opposite before: signal was going down when more light).
Note 2: signal saturates when lever with mirror in front of delivery fiber, so gain is too high.
2) Shrinking trial 1: OK, Shrinking trial 2: failed: shrinking tube didn't stick to the fibers, dust or grease ? Didn't stick even with washing with alcohol.
3) connectorization procedure update:
step 1) verify if chinese ST connector is not clogged. Place the conenctor horizontally on the table and push a stripped fiber in. Don't maintain the connector so if the fiber can't go inside, the fiber won't break, it will just oush the connector.
step 2) assemble the glass capillary and the black plastic cover
step 3) insert the shrunk fiber into the glass capillary
step 4) use the same technique as in step 1) to insert the shrunk fiber free end into the connector
step 5) adjust the gap position relative to the capillary end by gently sliding the capillary. Apply glue on the connector to fix the black cover. Add glue just below the gap between gap and capillary end.
2013 June 6 (1.5 h)
tested transducer.
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Make Photonics - Joint-type transducer
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Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
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| Feb. 19, 2014 |
Time Contribution |
Christopher D |
Work - Design optical |
0.50 Idea |
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Discussion about the design of an implementable PDMS sleeve for the joint-type transducer. Francois & Daniel were present.
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Design PMMA fiber joint-type transducer
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Design Optical - Joint-type transducer: PMMA joint-type transducer
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| Feb. 19, 2014 |
Time Contribution |
Tibi |
Work - Training others |
1.00 HR |
|
Worked with Christopher and Francois around the LED visible Mosquito and the PMMA joint-type transducer
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| Feb. 19, 2014 |
Time Contribution |
Christopher D |
Work - Training self |
4.00 HR |
|
Familiarizing myself with the LED mosquito, the assembly, the theory. Francois and Tibi assisted me.
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| Feb. 19, 2014 |
Time Contribution |
Christopher D |
Work - R&D optics |
0.08 HR |
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creating prototype for PMMA joint-type transducer.
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Make Prototype PMMA fiber joint-type transducer
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Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
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| Feb. 19, 2014 |
Time Contribution |
Christopher D |
Work - Design optical |
4.02 Idea |
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PDMS sleeve for optical transducer for Mosquito sensor:
http://grabcad.com/library/mosquioto-sensor-pdms-sleeve-negative-print-1
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Design PMMA fiber joint-type transducer
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Design Optical - Joint-type transducer: PMMA joint-type transducer
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| Feb. 12, 2014 |
Time Contribution |
Christopher D |
Work - Training self |
0.75 HR |
Open
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250 & 500 um plastic fiber polishing and observation under the microscope.
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| Feb. 12, 2014 |
Time Contribution |
Christopher D |
Work - Training self |
7.00 HR |
Open
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Cutting, stripping, cleaving of the glass fiber, followed by its coating using nitric acid, silver agent, glucose solution, wetting agent and tin chloride. Inspection of the fiber and mirror under the microscope. Francois assisted me.
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| Feb. 12, 2014 |
Time Contribution |
Christopher D |
Work - R&D optics |
0.50 HR |
|
Discussion about mechanical and optical improvements to the design of a PDMS sleeve for the joint-type transducer. Francois and Serge were present.
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Make Prototype PMMA fiber joint-type transducer
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Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
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| June 27, 2013 |
Time Contribution |
Francois |
Work - Documenting |
2.50 HR |
Open
|
belongs to joint-type, constriction, directional tape, gluing, shrinking: finished text for R&D tax credits. Sent for review.
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| June 26, 2013 |
Time Contribution |
Francois |
Work - Documenting |
5.00 HR |
Open
|
belongs to joint-type, constriction, directional tape, gluing, shrinking: text for R&D tax credits
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| June 24, 2013 |
Time Contribution |
Francois |
Work - Documenting |
2.50 HR |
Open
|
Belongs to joint-type, constriction, directional tape sensor, including gluing experiments, shrinking device. Writing text for t661 for R&D tax credits.
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| June 20, 2013 |
Time Contribution |
Francois |
Work - Documenting |
4.50 HR |
Open
|
this belongs to several projects (joint-type, constriction, directional tape-sensor) text for t661 R&D tax credits
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| June 19, 2013 |
Time Contribution |
Francois |
Work - Documenting |
2.00 HR |
Open
|
this belongs to several projects: joint-type, constriction, directional tape-sensor
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| June 17, 2013 |
Time Contribution |
Francois |
Work - Documenting |
4.50 HR |
|
see labnotes. This belongs to joint-type transducer and constriction, optical coating and logging past contributions
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| June 10, 2013 |
Receive |
Francois |
Currency - Canadian Dollars |
70.00 CAD |
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Converted from spreadsheet
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| June 10, 2013 |
Give |
Francois |
Currency - Canadian Dollars |
70.00 CAD |
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Converted from spreadsheet
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| June 6, 2013 |
Time Contribution |
Francois |
Work - R&D optics |
1.50 HR |
|
2013 May 21 (5.5 h + 1.5 h):
prepare 5 joint-type transducers in angle using Ivan's pre-bent glass capillaries. Result: broke one, fried one, one has a damaged mirror. 2 left to connectorize. Connectorization failed. 0 transducer made....
2013 May 22 (4h):
goal: mirror 4 levers, connectorize one transducer.
silvering quality tests: played with number of silver layers and reaction time:
red lever: 3 times one minutes shaking. Intensity = ?
one black strip lever: one time one minute shaking. Intensity = ?
two black strips lever: one time 2 minutes. Intensity = ?
Arranged power supply memories for shrinking:
M1 = 0
M2 = 0.32 A x 0.67 V = 0.2 W
M3 = 0.4 x 1 = 0.4 W
M4 = 0.6 x 0.1 = 0.6 W
Determined ideal length for delivery fiber at the very beginning (before cleaving 1 cm both side) = 16.7 cm
Result: made one pre-bent joint-type transducer.
2013 May 24 (0.5 h):
tested transducer with LED Mosquito: it works
2013 June 5 (7.5 h)
goals: test new LED-Mosquito with amplification + filter
1) signal tests on LED-Mosquito: signal without anything plugged (no delivery fiber): 0.995-1.065 V (average 1030 mV), noise = 70m V.
+ delivery fiber: 1.205-1.125 V = 80mV noise (average baseline 1165 mV), so the delivery fiber increases reflexion of 135 mV.
Reference: with industrial mirror max signal goes to + 10.3 V (note that signal goes up now when light goes back to the PD, it was the opposite before: signal was going down when more light).
Note 2: signal saturates when lever with mirror in front of delivery fiber, so gain is too high.
2) Shrinking trial 1: OK, Shrinking trial 2: failed: shrinking tube didn't stick to the fibers, dust or grease ? Didn't stick even with washing with alcohol.
3) connectorization procedure update:
step 1) verify if chinese ST connector is not clogged. Place the conenctor horizontally on the table and push a stripped fiber in. Don't maintain the connector so if the fiber can't go inside, the fiber won't break, it will just oush the connector.
step 2) assemble the glass capillary and the black plastic cover
step 3) insert the shrunk fiber into the glass capillary
step 4) use the same technique as in step 1) to insert the shrunk fiber free end into the connector
step 5) adjust the gap position relative to the capillary end by gently sliding the capillary. Apply glue on the connector to fix the black cover. Add glue just below the gap between gap and capillary end.
2013 June 6 (1.5 h)
tested transducer.
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Make Photonics - Joint-type transducer
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Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
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| June 6, 2013 |
Time Contribution |
Francois |
Work - R&D optics |
1.50 HR |
|
shrink and connectorize one curved transducer. Two attempts, one failed (the shrinking tube didn't stick to the delivery fiber). The transducer was glued but not tested yet.
Now it is tested. Clear signal for 100 microns.
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Make Photonics - Joint-type transducer
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| June 5, 2013 |
Time Contribution |
Francois |
Work - R&D optics |
7.50 HR |
|
2013 May 21 (5.5 h + 1.5 h):
prepare 5 joint-type transducers in angle using Ivan's pre-bent glass capillaries. Result: broke one, fried one, one has a damaged mirror. 2 left to connectorize. Connectorization failed. 0 transducer made....
2013 May 22 (4h):
goal: mirror 4 levers, connectorize one transducer.
silvering quality tests: played with number of silver layers and reaction time:
red lever: 3 times one minutes shaking. Intensity = ?
one black strip lever: one time one minute shaking. Intensity = ?
two black strips lever: one time 2 minutes. Intensity = ?
Arranged power supply memories for shrinking:
M1 = 0
M2 = 0.32 A x 0.67 V = 0.2 W
M3 = 0.4 x 1 = 0.4 W
M4 = 0.6 x 0.1 = 0.6 W
Determined ideal length for delivery fiber at the very beginning (before cleaving 1 cm both side) = 16.7 cm
Result: made one pre-bent joint-type transducer.
2013 May 24 (0.5 h):
tested transducer with LED Mosquito: it works
2013 June 5 (7.5 h)
goals: test new LED-Mosquito with amplification + filter
1) signal tests on LED-Mosquito: signal without anything plugged (no delivery fiber): 0.995-1.065 V (average 1030 mV), noise = 70m V.
+ delivery fiber: 1.205-1.125 V = 80mV noise (average baseline 1165 mV), so the delivery fiber increases reflexion of 135 mV.
Reference: with industrial mirror max signal goes to + 10.3 V (note that signal goes up now when light goes back to the PD, it was the opposite before: signal was going down when more light).
Note 2: signal saturates when lever with mirror in front of delivery fiber, so gain is too high.
2) Shrinking trial 1: OK, Shrinking trial 2: failed: shrinking tube didn't stick to the fibers, dust or grease ? Didn't stick even with washing with alcohol.
3) connectorization procedure update:
step 1) verify if chinese ST connector is not clogged. Place the conenctor horizontally on the table and push a stripped fiber in. Don't maintain the connector so if the fiber can't go inside, the fiber won't break, it will just oush the connector.
step 2) assemble the glass capillary and the black plastic cover
step 3) insert the shrunk fiber into the glass capillary
step 4) use the same technique as in step 1) to insert the shrunk fiber free end into the connector
step 5) adjust the gap position relative to the capillary end by gently sliding the capillary. Apply glue on the connector to fix the black cover. Add glue just below the gap between gap and capillary end.
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Make Photonics - Joint-type transducer
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Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
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| June 5, 2013 |
Time Contribution |
Francois |
Work - R&D optics |
5.28 HR |
|
shrink and connectorize one curved transducer. Two attempts, one failed (the shrinking tube didn't stick to the delivery fiber). The transducer was glued but not tested yet.
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Make Photonics - Joint-type transducer
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| June 4, 2013 |
Time Contribution |
Francois |
Work - Accounting and Finance |
1.50 HR |
|
sent cash flows info and pay stubs to accountant
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