Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Testing light sensor to experimentally determine its sensitivity
analyzing how much head loss we need to add to our system to get desired flow rate
Accomplishments from Previous Week
[Everyone] Proof-of-Concept Presentation
[Everyone] Completed and Turned-In Lab Safety Trainings
[Jing] Project background and objective (front page of Website)
[Jing] Concise description of final design (front page of Website)
Goals for Next Week (list names after each item). Use specific and measurable objectives.
[Gregory, Woo Jae] finalize report for first draft
[Jasmine, Jing] finalize website for first draft
[Everyone] trouble shoot design after initial testing
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
1/31/2020 Jaeson Calla (the grad student) in person
genetically modified mosquitoes have faster life cycle than regular mosquitoes
genetically modified mosquitoes take one week to go from eggs to pupae
need to plan one week ahead if we need to test with genetically modified mosquitoes
genetically modified mosquito pupae do not keep well in ethanol
will use regular mosquitoes to test flow
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
1/30/2020 in person (Prof T.)
Ask Steve about sensor
test its sensitivity
understand its capability better
block all ambient light
use PWM to control UV light with Arduino
test intensity of UV light vs. intensity of mosquito glow
be careful with touching sensor
can harm it with static
Goal: 5 seconds per pupae/larvae
finish revolving door (CAD and CNC with plastic available at machine shop, probably Tom's favorite plastic)
put names down on tasks
2/4/2020 in person (Steve)
no way to increase intensity of light in GMO pupae
will have to test our light sensor to see if it is sensitive enough to pick up dim pupae light
gave an LED and variable resistor to test our sensor for the lowest possible threshold of intensity
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
1/31/2020 in person after initial testing
Need to close all drain holes in the hopper
use 0.25 in pipe cut to size to transport mosquitoes
make the funnel wider to reduce velocity without reducing volume flow rate
use a mesh to separate mosquitoes from the pump intake, or else they get sucked in
can decrease pump flow by increasing head loss (pinching the pipe from the pump is one way to do it)
Risks and Areas of Concern
purchased pump has an actual range of 15 - 27 gallons per hour
this range was determined experimentally over 3 trials at the lowest and highest settings
this range is not sufficiently wide enough for easy control of flow rate
need to perform more analysis to figure out how much head loss we need to reduce flow rate to the exact amount
Light sensor is a high risk area
worried that sensor is not sensitive enough to pick up the light of the pupae
Steve gave us LED and variable resistor to test our sensor for the lowest possible threshold of intensity
Resources or Information Required but not Available
Schedule
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
Spent: $19.33
Remaining: $1558.81
Progress on Report and Webpage
Finishing first draft of web page by 2/7/2020
Finishing first draft of report by 2/7/2020