Photoresistor characteristic measuring instrument
The utility model relates to a teaching instrument, in particular to a photoresistor characteristic measuring instrument, characterized in that inside a dark box there are provided a power supply, a light emitting diode, a convex lens and a photoresistor, wherein the power supply is connected with t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a teaching instrument, in particular to a photoresistor characteristic measuring instrument, characterized in that inside a dark box there are provided a power supply, a light emitting diode, a convex lens and a photoresistor, wherein the power supply is connected with the light emitting diode, the convex lens is arranged between the light emitting diode and the photoresistor, the light emitting diode, the convex lens and the photoresistor are arranged in a straight line, two output ends of the photoresistor are connected with the socket of the dark box, and the measuring line of a multimeter outside the dark box is connected with the socket. The photoresistor characteristic measuring instrument is simple and portable, can change the light intensity of the photoresistor through adjusting the power supply, can measure the relation between the resistance value of the photoresistor and the light intensity, and can measure the corresponding resistance value of the photoresistor corres |
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