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Ultrasonic Transmitter

Ultrasonic Transmitter

Ultrasonic transmitter operating mode. Ultrasonic sensors using sonic media on the detected objects for non-contact wear-free detection. Ultrasonic sensors on transparent or colored objects, metallic or non-metallic objects, solid, liquid, powdery substances can be detected. Its detection...

Products Specifications:

Ultrasonic transmitter operating mode.

Ultrasonic sensors using sonic media on the detected objects for non-contact wear-free detection. Ultrasonic sensors on transparent or colored objects, metallic or non-metallic objects, solid, liquid, powdery substances can be detected. Its detection performance is almost unaffected by any environmental conditions, including the dust environment and rainy days.


Ultrasonic transmitter detection mode

Ultrasonic sensors mainly use direct reflection detection mode. The detected object located in front of the sensor causes the sensor to detect the measured object by transmitting the emitted acoustic wave partially to the receiver of the sensor.


There are some ultrasonic sensors used in the detection mode. A pair of ultrasonic transmitters consists of a transmitter and a receiver that keep "listening" between them. The test object located between the receiver and the transmitter blocks the receiver from receiving transmitted sound waves so that the sensor generates a switching signal.


Detection range and acoustic emission angle

The detection range of the ultrasonic sensor depends on the wavelength and frequency of its use. The longer the wavelength, the smaller the frequency and the larger the detection distance. For example, a compact sensor with a millimeter wavelength has a detection range of 300-500mm and a wavelength of more than 5mm can detect a sensor with a detection range of up to 8m. Some sensors have a narrower 6º acoustic emission angle, making them more suitable for accurate detection of relatively small objects. Other sensors with acoustic emission angles of 12º to 15º are capable of detecting objects with large dip angles. In addition, we also have an external probe-type ultrasonic sensor, the corresponding electronic circuit in the conventional sensor housing. This structure is more suitable for detecting installation space is limited occasions.

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