TR 40 kHz Ultrasonic Piezo Air Transducer Water Tank Level Sensor 12mm Dia Open Structure

Quick details:

1. Dimension: 12.8mm(D)*9.0mm(H)

2. Center frequency :40.0±1.0KHz

3. Using Method: Act both as transmitter and receiver.

4. Construction:open structure type

Specification:

Drawing (mm)

Application

- Remote Control

- Automatic doors

- Burglar and disaster detection alarm

- Distance meter and range finder

Ultrasonic sensor application in the field of security alarm 
The ultrasonic sensor is a sensor developed by ultrasonic characteristics. Ultrasound as a means of detection, must produce the ultrasonic wave and receiving ultrasonic. The completion of this function is the ultrasonic sensor device. As the emission part and a receiving part using ultrasonic sensors, transmitters to be detection of regional emission amplitude ultrasonic, ultrasonic receiver to receive the reflected, in the absence of a moving object enters a region detected, the reflected waves is the amplitude . When the activity objects into the detection region, the amplitude of ultrasonic wave reflected unequal, and constantly changing, the receiving circuit detection signal to the control circuit changes respond that drives the alarm.