Description

Ultrasonic Sensor 3D Ranging PVDF Piezoelectric Film Wave Detector Ranging Module Omnidirectional Ultrasonic Vibration Sensor

Product introduction:

This is an ultrasonic emitting body made of 28-micron silver electrode PVDF piezoelectric film, and a sensor that uses sound waves to measure distances. The ultrasonic transmitting module uses a power amplifier to amplify and drive the 40kHz ultrasonic wave emitted by the ultrasonic transmitting sensor; the ultrasonic receiving module receives the ultrasonic signal reflected by the obstacle, and multiplies the propagation speed of the sound wave in the air by calculating the transmission time of the sound wave (about 340 meters / Seconds) divided by two to get the distance between the sensor and the obstacle.

Calculation formula of reflective ultrasonic distance: L=1/2C*T . L is the measurement distance; C is the propagation speed of the ultrasonic wave; T is the propagation time (T is the time from transmission to reception).