Wednesday, May 18, 2011

water temperature sensor

we boild some water up and tested the water temperature sensor.

graph to show readings.



It was a NTC type temperture sensor.

The way is works, there is a verble resistor in the sensor and when the temperture changes it can react to it and and the resistance will change,when the resistance gets higher we need more voltage to push. the raitoe changes betwwen the verble and the known resistor.

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