Charge Sensor can be used to measure electric quantity of a conductor. For example: it can be used to replace traditional gold leaf electroscope and electrometer in static electricity experiment. It also can be used to measure electric quantity and polarity of charge.
The Charge Sensor is installed with an high precision input capacitor. The measured charge will charge capacitor so that voltage across the capacitor is increased. The device calculates voltage or charge by using potential difference between the capacitor.
It designed with alligator clip which covered by plastic. The wires used are red and black (for ground).
Specification
| Range | -220nC~220nC |
| Resolution | 0.1nC |
Usage
Connect alligator clips to Charge Sensor. Connect Charge Sensor to any port in SenseDisc.
Connect red and black alligator clips to positive and negative poles in Charge Sensor.
Short connect alligator clips to reset the sensor.
Typical experiment
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Compare charge quantity and symbol of different objects
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Static electric phenomenon
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Charge sharing between conductors
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Faraday-ice bucket experiment
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Electrostatic screening
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Measuring charge quantity and symbol
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Charge density on surface of conductor
Notes
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For those experiment which need high precision charge measuring, fix the sensor to ensure the result is accurate.
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The wire used to connect alligator clips to sensor must be covered by plastic.
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Discharge the built-in capacitor before any experiment. Short connect red and black alligator clips.
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The air humidity can also affect the accuracy of data measuring. Dry the surrounding air to ensure the accuracy.
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Calibrate it using high precision power supply 0~10V. Connect both terminal of power supply to them of sensor.
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Maximum input voltage is 15V.
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Do not connect high voltage generator to the sensor directly otherwise it will damage the sensor.
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