The working principle of piezoelectric ultrasonic sensor is mainly based on piezoelectric effect, which uses electrical components and other machinery to convert the pressure to be measured into electricity, and then performs relating measurement. Measuring precision instruments, such as many pres

Step 1: Parts list·Arduino UNO board·SR04 ultrasonic transducer sensor·USB cable type A/B·Universal 4-pin Grove cableStep 2: Connect the 200KHz ultrasonic transducer to the Arduino development board

Analysis of interference factors and measures are takenOne of the biggest disadvantages of using multiple sensors to transmit ultrasonic waves in parallel is that the interference is more serious, especially the signal interference between the sensors. The main factors that cause interference are as

Ultrasonic transducer are developed to use the characteristics of ultrasound. Ultrasound wave is a kind of mechanical wave whose vibration frequency is higher than that of sound waves. It is generated by transducers vibrating under the excitation of voltage. It has high frequency, short wavelengt