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To build and calibrate a sensor in order to calculate the temperature of surroundings.
Member rating: No Rating | Words: | Submitted: Mon Aug 18 2003
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Using a thermistor as a temperature sensor AIM: To build and calibrate a sensor in order to calculate the temperature of surroundings. METHOD Firstly I assembled all of the apparatus shown in the diagram. I then heated some water in a kettle, and poured it the big beaker. Next I lowered the beaker containing the ethanol into the hot water, with the thermistor just below the surface of the ethanol. I took the voltmeter reading for every 5 degrees Celsius as the temperature of the ethanol rose. I then added ice to cool the water down, again taking readings as the temperature of the ethanol declined. I repeated this experiment three times and took averages for each of the temperatures recorded. FAIR TESTING To ensure the test was entirely fair, I made sure that the same thermistor was used for each experiment. I also used the same volume of ethanol to ensure this had...
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