Photosensitive Sensor Module (Light Detector)
  • Photosensitive Sensor Module (Light Detector)

#252: Photosensitive Sensor Module (Light Detector)

R14.78


Main parameters and characteristics

1) According to the spectral characteristics of three photoresistor photoresistor: UV light-sensitive resistors, infrared light-sensitive resistors,
Visible photoresistor;
 
2) the main parameters are as follows:
A - Dark Current & Dark Resistance: photoresistor at a certain applied voltage, when no light irradiation, when flowing
Current is called dark current. Applied voltage and the dark current ratio is called dark resistance;
 
B - Sensitivity: Sensitivity refers to the resistance value of the photoresistor from light irradiation (dark resistance) when irradiated with light and the
Resistance (light resistance) of the relative change value;
 
C - Voltage Characteristic Curve. Volt-ampere characteristic curve used to describe the relationship between the applied voltage and the photoresistor photocurrent, of
The photosensitive device, its photocurrent increases with the applied voltage.
 
D - Temperature Coefficient. Photoelectric effect photoresistor influenced by temperature, partial photoresistor optoelectronic at low temperatures
Higher sensitivity, whereas the sensitivity at high temperatures are lower.
 
E -Power Rating. Refers to the rated power for a certain line photoresistor allowed power consumed, when the temperature rise
High, its power consumption is reduced.
 

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Photosensitive Sensor Module (Light Detector)

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