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AguaClara / sensor_dev

The sensor development team's repo.
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MIA Sensor [Future Work] #22

Open vsrilekha opened 6 years ago

vsrilekha commented 6 years ago

The design for the MIA sensor has changed. We are no longer using the analog turbidity sensor and are looking into using a LED and a light sensor. We used a similar setup for the fluidized bed solids detector last semester. The idea is to measure voltage output from the sensor and convert the voltage readings to absorbance. Beer's Law could then be used to study the linear relationship between concentration and absorbance. Tests would need to be run determine the exact relationship and a curve would need to be fitted. This relationship could then be programmed into the microcontroller (the Arduino) and used to output turbidity values.

vsrilekha commented 6 years ago

Currently, we have written the code for the LED and light sensor. The light sensor has been wired to the microcontroller. Future work would include designing and fabricating a waterproof case for the light sensor and LED. We were exploring options of flexible tubing for the wires, similar to microbore tubing. The casing for the sensor needs to be clear, so that the sensor can detect any changes in light. Also the LED and sensor need to placed at set distance away from each other.