Contributions for Project Joint-type transducer
 
Date Type From Resource Type Qty URL Description Process Deliverables
April 2, 2014 Time Contribution Christopher D Work - R&D optics 10.00 HR 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 Make Prototype PMMA fiber joint-type transducer Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
March 12, 2014 Time Contribution Christopher D Work - Technician experimental 24.00 HR Explored different methods for PDMS molding https://docs.google.com/document/d/1yNVQON_tQFgGTaOSQy6VZkjL1UDL7KexODkTEEGmJ2E/edit Design PDMS molding techniques and Molding process for polymer Method - Molding process for polymer: PDMS Curing Onto 3D Printing Resin
March 12, 2014 Time Contribution Tibi Work - Training others 0.50 HR Worked with Christopher on the PDMS joint-type transducer with PMMA fiver, for the visible Mosquito.
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. Make Photonics - Joint-type transducer Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
Feb. 19, 2014 Time Contribution Christopher D Work - Design optical 4.02 Idea PDMS sleeve for optical transducer for Mosquito sensor: http://grabcad.com/library/mosquioto-sensor-pdms-sleeve-negative-print-1 Design PMMA fiber joint-type transducer Design Optical - Joint-type transducer: PMMA joint-type transducer
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
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.
Feb. 19, 2014 Time Contribution Christopher D Work - R&D optics 0.08 HR creating prototype for PMMA joint-type transducer. Make Prototype PMMA fiber joint-type transducer Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
Feb. 19, 2014 Time Contribution Christopher D Work - Design optical 0.50 Idea Discussion about the design of an implementable PDMS sleeve for the joint-type transducer. Francois & Daniel were present. Design PMMA fiber joint-type transducer Design Optical - Joint-type transducer: PMMA joint-type transducer
Feb. 12, 2014 Time Contribution Christopher D Work - Training self 0.75 HR Open 250 & 500 um plastic fiber polishing and observation under the microscope.
Feb. 12, 2014 Time Contribution Christopher D Work - Training self 7.00 HR Open 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.
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. Make Prototype PMMA fiber joint-type transducer Prototype Material - Joint-type transducer: PDMS Joint-type transducer for 1mm PMMA fiber
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.
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
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.
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
June 19, 2013 Time Contribution Francois Work - Documenting 2.00 HR Open this belongs to several projects: joint-type, constriction, directional tape-sensor
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
June 10, 2013 Receive Francois Currency - Canadian Dollars 70.00 CAD Converted from spreadsheet
June 10, 2013 Give Francois Currency - Canadian Dollars 70.00 CAD Converted from spreadsheet
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. Make Photonics - Joint-type transducer Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
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. Make Photonics - Joint-type transducer
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. Make Photonics - Joint-type transducer Prototype Material - Joint-type transducer: Joint-type transducer glass fiber
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. Make Photonics - Joint-type transducer
June 4, 2013 Time Contribution Francois Work - Accounting and Finance 1.50 HR sent cash flows info and pay stubs to accountant