Gravity: Digital 10.525GHz Microwave Sensor

The 10.525GHz microwave motion sensor applies the Doppler effect to detect moving objects using microwaves. 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.

This type of microwave sensor is widely used in industrial, transportation, and civil applications such as measuring vehicle speed, liquid levels, automatic door motion detection, automatic washing, production line material detection and car reversing sensors, etc.

The microwave detection method has the following advantages compared to other methods:

1. Non-contact detection
2. Readings not affected by temperature, humidity, noise, air, dust or light - suitable for harsh environments
3. Strong resistance to radio frequency interference
4. Low output, unharmful to human
5. Wide detection range and high velocity
6. Supports non-living object detection

Applications

The microwave sensor can be useful together with other sensors to enhance its measurement accuracy. For example,Microwave sensorcould decrease the pseudo fault report rate of human motion detection. And it does a good job in safety & security work.

Specification

• Working Voltage: 5V + 0.25V
• Working Current (CW): 60mA max., 37mA typical
• Interface: Gravity 3-Pin interface（Digital）
• Size: 48.5x63mm
• Emission parameters:Detection Distance: 2-16M continuously adjustableEmission Frequency: 10.525 GHzPrecision Frequency Setting: 3MHzOutput Power (minimum): 13dBm EIRPHarmonic Emission: < -10dBmAverage Current (5%DC): 2mA typ.Pulse Width (Min.): 5uSecLoad Cycle (Min.): 1%
• Reception Parameters:Sensitivity:(10dB S/N ratio) 3Hz to 80HzBandwidth: -86dBm3Hz to 80Hz Bandwidth Clutter: 10uVAntenna Gain: 8dBiVertical 3dB Beam Width: 36 degreesLevel 3dB Beam Width: 72 degrees