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For my experiment I have chose to create a circuit that will test the temperature of a red wine bottle, to ensure that it is at room temperature, which it is best served at. For me to create this circuit, I will use a thermistor that measures temperature.

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  • Essay length: 859 words
  • Submitted: 17/09/2003
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AS and A Level Electrical & Thermal Physics

The first 200 words of this essay...

Chris Davison 12B Mrs. Baker

Physics Sensing Coursework

For my experiment I have chose to create a circuit that will test the temperature of a red wine bottle, to ensure that it is at room temperature, which it is best served at. For me to create this circuit, I will use a thermistor that measures temperature.

This sensor will give out different amp and volt readings depending on the temperature, therefore telling you the temperature the sensor is at.

I will arrange my circuit in the following way:

As you can see I have kept the circuit linear to ensure that it is as simple as possible. Two parallel wires will be ran off either side of the sensor in the circuit so that the voltage can be measured, and the current will be measured after leaving the cell.

The circuit works as a potential divider because of the resister. The resister changes the output voltage into a smaller fraction of the source voltage, so when it reaches the sensor, it is not as large.

(See tables and graphs for results)

From looking at my results on

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