5.8GHz Doppler Effect Microwave Motion Sensor SKU: CQRSENWB02
Description
The microwave motion sensor is a microwave moving object detector which is designed according to the principle of Doppler Radar. This differs from the method used by a regular infrared (IR) sensor as microwave is sensitive to a variety of objects that are microwave-reflective, and its sensor readings are not affected by the ambient temperature.
Comparison with IR Sensor:
It is widely used not only in the detection of human body, but also many other objects. With the character of long detection distance and high sensitivity, it works without the limitation of ambient temperature and has come widely used in industrial, transportation and civil applications liquid levels, automatic door motion detection, automatic washing, production line material detection and car reversing sensors etc.
The detection objects of the microwave sensor are universal. When it comes to the actual use in life, we will usually match it with another sensor for targeted detection. For example, a combination of microwave sensor and infrared pyroelectric sensor. It can accurately judge whether someone is passing by without being disturbed by sunlight and clothing color, and will not react to other objects.
Attention
There is an ultra-high frequency MOS device inside the microwave motion sensor. When you are testing, please use battery power as much as possible to avoid breakdown that is caused by the static voltage difference between the power supply and the test equipment, such as an oscilloscope.
In addition, we suggest that you use battery power to ensure the best detection effect when you are operating the product.
