The role and working principle of ultrasonic sensors
Ultrasonic sensors are divided into general ultrasonic sensors (without headers) and integrated ultrasonic sensors. Integrated ultrasonic sensors are more commonly used. The integrated ultrasonic transformer consists of two parts: the meter (such as the LCD monitor) and the probe. The sensor that directly outputs the 4-20mA signal is a small-sized sensor (sensor) and an electronic circuit assembled together to make the volume. Smaller, lighter, and cheaper. Ultrasonic sensors can be used for level. Level measurement and flow measurement of open channels, open channels, etc., and can be used to measure distances.