Contributions for Project soilsensor
 
Date Type From Resource Type Qty URL Description Process Deliverables
Oct. 18, 2016 Time Contribution Humberto Documenting 1.00 HR Adding pictures to the Report and more information about the results Prototypes for Connected Fields
Oct. 17, 2016 Time Contribution Humberto R&d optics work 3.00 HR Preparation of PMMA fiber: 2 cm of cladding is removed with acetone and replaced with a mix of wood's glue (polyvynil acetate-PVA) and ethanol. Tests with dry and wet soil Prototypes for Connected Fields
Oct. 17, 2016 Time Contribution Humberto Documenting 2.50 HR Writing final report for Connected Fields project https://docs.google.com/document/d/1CdSioX6M9PD2Cj4-jrqh6AXJGzEY36oPh3FvyYK2wxM Prototypes for Connected Fields
Oct. 6, 2016 Time Contribution Marisa Analysis and strategy work 2.50 HR Explored and attributed documentation about Optical Sensor with PODnet affiliates and Encounter ThinkTANK LA. Added links to documentations and discussed with groups the benefits to the sensor Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
Sept. 20, 2016 Time Contribution Tibi Business building work 1.50 HR Open Communicated with the team of the project and with Gabriel from Connected Fields about open innovation strategy, collaboration and budgeting. I also created an announcement page.
Sept. 20, 2016 Time Contribution Tibi Administration work 1.50 HR Open I restructured documentation for the project and prepared the ground for Scott's initiative, R&D for a new sensor in collaboration with other organizations, that is paid. I communicated this with the group. Will communicate later with SENSORICA
Sept. 7, 2016 Time Contribution Povilas Meeting work 1.00 HR Humberto & Povilas https://docs.google.com/document/d/1Mx4c5A3nHdRPBHJs3iUFCOhE_4pKmbhbcgHn8GHoHUw/edit# Prototypes for Connected Fields
Sept. 7, 2016 Time Contribution Humberto Meeting work 1.00 HR Meeting with Pov Prototypes for Connected Fields
Sept. 4, 2016 Time Contribution Humberto Training self work 4.00 HR Literature review on optical fiber sensors. Options with Fiber Gratt grating and tapered fiber implies special materials, equipment and procedure. A simpler procedure was found in the paper "Polymer optical fiber moisture sensor based on evanescent-wave scattering to measure humidity in oil-paper insulation in electrical apparatus" (https://www.researchgate.net/publication/224360067). The idea is to remove the cladding with acetone and apply different layers of Polyvinyl-PVA (Wood glue). Prototypes for Connected Fields
June 20, 2016 Time Contribution Tibi Demo work 4.00 HR Worked with Pov and Humberto on a demo for the soil moisture sensor at Saint Laurent street fair, also helped with the submission of the soil moisture sensor project for Eco2Fest at WSF / OuiShare
June 13, 2016 Time Contribution Humberto Documenting 3.00 HR Open Application for Eco2Fest
June 11, 2016 Time Contribution Povilas Infrastructure development work 4.00 HR Preparing sensor kit for the demo stand. Prepared the layout for the parts on the demo stand, made new opamp amplifying circuit to ease the reading for demo,wrote an arduino code to test threshold for the demo. Finalized the functionality of the demo stand, ensuring it all works.
June 11, 2016 Time Contribution Humberto Infrastructure development work 3.00 HR Preparing and testing prototype. Scoring fiber
June 10, 2016 Time Contribution Humberto Event organizing work 4.00 HR Open Design and printing of poster for St. Laurent street fair
June 10, 2016 Time Contribution Povilas Infrastructure development work 4.00 HR Preparing sensor kit for the demo stand. Connected all parts together, tried to test the best way of displaying fiber, so the demo would work.
May 31, 2016 Time Contribution Tibi Facilitation work 0.75 HR Open Communication of Important events that are related to this project.
April 14, 2016 Time Contribution Scott R&d electronics work 4.00 HR Had discussions with Bruce and a planning session to see if we can get a field trial with an orchard. Went over test results produced by Colin for the optical sensor and had a discussion with Colin and Bruce about the way forward for the agriculture project. Results suggest that it is the change in refraction index due to the moisture that is diffusing the light as was expected. An interesting conclusion is that the power source from the laptop was producing a lot of noise. We concluded that we need additional tests to see what are the variations due to temperature, the depth of the groves, etc. Colin will help with that. Scott will develop some field tests to establish the link budget on an orchard at 900MHz and work a bit on the wireless component. Bruce will do some research and do some writing to help promote the cause. Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
April 6, 2016 Time Contribution Colin R&d electronics work 0.10 HR Amplify phototransistor current with an op-amp Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
April 6, 2016 Time Contribution Colin R&d electronics work 0.00 HR Amplify phototransistors current Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
April 5, 2016 Time Contribution Colin R&d electronics work 2.00 HR testing possibilities for balancing two phototransistors. Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
April 1, 2016 Time Contribution Scott R&d electronics work 2.00 HR Spent some time with Colin and Bruce to reproduce the moisture sensing effect. We were able to see the effect. Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
March 31, 2016 Time Contribution Tibi Training others work 0.50 HR Spoke to Cloin about where we are and how I think we should continue to develop this, and documented a bit in then main doc. https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit# I also gave the link to an instrumentational amp that we worked with, for the sensor network project https://docs.google.com/document/d/1EVXnkkM1FmmH0BjBJ9bqRI0mOVAZ7I3Ib5ErD4K_jEs/edit#heading=h.e6zpnc5h85aw Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype
Nov. 10, 2015 Time Contribution Frederic Technician experimental work 1.00 HR Documenting results of 2-week long test. Build Moisture Sensor Proto-FD for John and Optical soil moisture sensor prototype Optical soil moisture sensor prototype: Prototype documentation
Nov. 8, 2015 Time Contribution Frederic Technician experimental work 3.00 HR Assembly of QTY=2 prototypes. Build Moisture Sensor Proto-FD for John and Optical soil moisture sensor prototype Optical soil moisture sensor prototype: Prototype documentation
Nov. 1, 2015 Time Contribution Tibi Engineering work 6.00 HR 2 hours of LabView programming for testing the sensor LabView interface with Arduino 4 hours for experimentation, data analysis. Worked with Jim. Log of past work, recorded in the main project doc. https://docs.google.com/document/d/1hmMMSnVA4iQygfQtlQcdtnHQs6OqX18vnC7YoBZxX6Y/edit# Prototyping stage Optical soil moisture sensor prototype: Optical fiber soil moisture sensor transducer prototype