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What is temperature compensation?
Source:    Publication time:2017-12-21 11:53:10    Number of visits:

Under normal circumstances, human body temperature is always much higher than ambient temperature. When the intruder is in motion, the sensor receives a large amplitude change of the infrared signal and triggers an alarm. When the ambient temperature rises close to the human body temperature, the amplitude of the infrared change signal received by the sensor during the movement of the intruder is very small, which may cause no alarm because the signal is smaller than the trigger threshold. Temperature compensation automatically increases the gain of the intruding signal amplifier when the ambient temperature is close to body temperature, keeping intruders' signals captive without affecting the sensitivity of the ambient temperature.

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