LDR Photoresistor module for Arduino KY-018 เซ็นเซอร์แสง LDR

LDR Photoresistor module for Arduino KY-018 เซ็นเซอร์แสง LDR

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 the 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 the 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 rated power. Refers to the rated power for a certain line photoresistor allowed power consumed when the temperature rise
High its power consumption is reduced.
Package include:1 pcs KY-018 Photosensitive Sensor Module

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