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AMDR-1011是什麼東西啊?

在電路板上有一個東西

上面有寫型號AMDR-1011

這是什麼東西啊?
AMDR-1011 介紹如下：Microwave Motion Sensor-10.525GHz / X-BAND Motion Detector ModulePRODUCT FEATURESDoppler radar theory is applied in this reliable

low-cost Microwave Motion Sensor

AMDR-1011 Basically

the Doppler effect describes the shift in frequency of a signalreflected from a moving target. The Doppler frequency is defined as the differencebetween the frequency of the transmitted signal and the frequency of the return signal.Microwave Motion Sensor is used to measure the relative velocity of a moving target in theapplications such as intrusion alarms.Microwave Motion Sensor offers a number of advantages over alternative technologiessuch as ultrasonic

optic

magnetic switch

or infrared sensors in the senses of greaterrange

better penetration

etc.APPLICATIONIntrusion AlarmsAutomatic Door OpenersObstruction Warning SystemsNon-Contact Measurement 參考資料 AMELEKS Corp.
AMDR-1011 是 Microwave Motion Sensor（微波傳感器）。

Microwave Motion Sensor,Motion Sensor,Doppler frequency,Motion Detector Module,intrusion alarms,signal,a moving target,PRODUCT FEATURES,Doppler,Doppler effect

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