Ultrasound Sensor

Ultrasound Sensor

Ultrasound sensor specifications Introduction to the basic knowledge of open ultrasound sensors Open-type ultrasound sensor is divided into launch-type, receiving and sending one of three types, With a large measuring range, Anti-interference ability of the characteristics, Mainly used for...

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Ultrasound sensor specifications

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Introduction to the basic knowledge of open ultrasound sensors

Open-type ultrasound sensor is divided into launch-type, receiving and sending one of three types, With a large measuring range, Anti-interference ability of the characteristics, Mainly used for ultrasonic ranging devices (such as rangefinder), burglar alarm devices and toys And other electronic devices such as remote control devices.

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Similar to the ultrasound sensor speaker, the working frequency is higher than the speaker, at about 40KHz. Controlled by the single-chip microcomputer, directional ultrasonic pulse transmission, the receiving sensor receives the signal sent to the microcontroller through the plastic to detect the launch of the pulse to receive the pulse time, according to the time to calculate the distance to achieve the purpose of ranging. Ultrasound in the air propagation speed, about 340 / S, and the ambient temperature and moderately related, so the best ultrasound distance measurement temperature compensation circuit.


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