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Description
1>. According to the spectral characteristics of the photoresistor has three photoresistor: Ultraviolet photosensitive resistance, infrared light-sensitive
resistors,Visible photosensitive resistance.
2>. The main parameters are as follows:
A>. Dark current, dark resistance: photosensitive resistance at a certain applied voltage, when the light is not irradiated when the flowing Current is
called dark current. Applied voltage and dark current ratio as the dark resistance.
B>. Sensitivity: Sensitivity is irradiated by light sensitive resistor, the Flame Sensor Moduleresistance value (dark resistance) when irradiated with light Resistance value (light
resistance) the relative change in values.
C>. Volt-ampere characteristic curve.Voltage characteristic curves are used to describe the resistance of the applied voltage and the photosensitive
photocurrent relationship,On the photosensitive devices, the light current with applied voltage increases.
D>. Temperature coefficient. Photoelectric effect photoresistor affected by temperature, at a low temperature portion photoresistor photoelectric
Sensitive high sensitivity at high temperatures is low.
E>. Rated power. Photosensitive resistor rated power is allowed for certain lines in the power consumed when the temperature rise High, its power
consumption is reduced.
Package Included:
5 x KY - 018 Photosensitive Resistance Module FOR ARDUINO AVR PIC
