Difference between revisions of "Chemical Sensors Notes SP2010"
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* 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, continue with these sensors, otherwise, we will have to find different sensors | *** If accuracy and precision are sufficient for source localization, continue with these sensors, otherwise, we will have to find different sensors | ||
| Line 15: | Line 14: | ||
*** 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 new direction estimates | *** It should update its direction of movement periodically according to 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
