Difference between revisions of "Chemical Sensors Notes SP2010"
From ESE497 Wiki
Jump to navigationJump to searchm (moved Chemical Sensors to Chemical Sensors Notes SP2010) |
|||
(6 intermediate revisions by 2 users not shown) | |||
Line 3: | Line 3: | ||
* Faculty Supervisor: Arye Nehorai | * Faculty Supervisor: Arye Nehorai | ||
* Goal: | * Goal: | ||
− | ** Determine the ability (accuracy and precision) of the current | + | ** Determine the ability (accuracy and precision) of the current sensors to measure concentration |
− | sensors to measure concentration | ||
*** Test on substance like ethanol that the sensors are designed for | *** Test on substance like ethanol that the sensors are designed for | ||
− | *** If accuracy and precision are sufficient for source localization, | + | *** If accuracy and precision are sufficient for source localization, continue with these sensors, otherwise, we will have to find different sensors |
− | continue with these sensors, otherwise, we will have to find different | ||
− | sensors | ||
*** Test whether acquisition time can be shortened for concentration measurement | *** Test whether acquisition time can be shortened for concentration measurement | ||
− | *** Test whether performance improves with a different experimental | + | *** Test whether performance improves with a different experimental setup (e.g., using a fan to blow air across the sensor) |
− | setup (e.g., using a fan to blow air across the sensor) | + | ** Incorporate digital resistors into the circuit design to allow on-line optimal concentration estimation |
− | ** Incorporate digital resistors into the circuit design to allow | + | ** Program a function in Matlab to estimate the direction to the source from the concentration measurements of two sensor arrays |
− | on-line optimal concentration estimation | ||
− | ** Program a function in Matlab to estimate the direction to the | ||
− | source from the concentration measurements of two sensor arrays | ||
*** Test with simulations in Matlab | *** Test with simulations in Matlab | ||
− | ** Incorporate the direction estimation into a guidance program for | + | ** Incorporate the direction estimation into a guidance program for the robotic platform |
− | the robotic platform | ||
*** The robot should move to seek out the source of the odor | *** The robot should move to seek out the source of the odor | ||
− | *** It should update its direction of movement periodically according to | + | *** It should update its direction of movement periodically according to new direction estimates |
− | new direction estimates | + | |
+ | ---- | ||
+ | *Status | ||
+ | **Week 1- completed the experiments necessary in the development of an algorithm relating chemical concentration to sensor sensitivity. | ||
+ | **Week 2- ran experiments with 0 drops concentration and 10 drops concentration | ||
+ | **Week 3- changed the resistance of sensors 2 and 3 to result in better concentration differentiation |
Latest revision as of 19:07, 27 April 2010
- Team Members: Joy Chiang
- PhD Supervisor: Vanessa
- Faculty Supervisor: Arye Nehorai
- Goal:
- Determine the ability (accuracy and precision) of the current sensors to measure concentration
- Test on substance like ethanol that the sensors are designed for
- If accuracy and precision are sufficient for source localization, continue with these sensors, otherwise, we will have to find different sensors
- Test whether acquisition time can be shortened for concentration measurement
- Test whether performance improves with a different experimental setup (e.g., using a fan to blow air across the sensor)
- Incorporate digital resistors into the circuit design to allow on-line optimal concentration estimation
- Program a function in Matlab to estimate the direction to the source from the concentration measurements of two sensor arrays
- Test with simulations in Matlab
- Incorporate the direction estimation into a guidance program for the robotic platform
- The robot should move to seek out the source of the odor
- It should update its direction of movement periodically according to new direction estimates
- Determine the ability (accuracy and precision) of the current sensors to measure concentration
- Status
- Week 1- completed the experiments necessary in the development of an algorithm relating chemical concentration to sensor sensitivity.
- Week 2- ran experiments with 0 drops concentration and 10 drops concentration
- Week 3- changed the resistance of sensors 2 and 3 to result in better concentration differentiation