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Use a sensor to make a measurement.
Member rating: No Rating | Words: | Submitted: Mon Feb 09 2004
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Introduction In my coursework, I am going to use a sensor to make a measurement. The sensor system is intended for use as a lightmeter for a photographer to detect light. I have chosen to find the respective voltages for variance of illumination on a LDR (Light dependent resistor). Things needed Two D.C. power supplies, a variable resistor, a bulb, a LDR, a 1.6 k? resistor, a voltmeter , two crocodile clips and a luxmeter. Setup The variable resistor and the bulb are connected in series to one of the power supplies. On the other hand, crocodile clips are attached to the LDR for better conductivity. The 1.6 k? fixed resistor and the LDR are then connected in series to the other power supply. The voltmeter is connected in parallel across the LDR. The luxmeter and the bulb are positioned close to the LDR on a similar level to avoid making wrong measurements....
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