Many people do not understand the difference between ultrasonic sensors, ultrasonic probes and ultrasonic transducers. Some people might think that these three are one product. The relationship between the three can be understood as: ultrasonic sensor, under the control of the electronic equipment module, ultrasonic probe sends a beam of ultrasonic monopulse to the tested object. The frequency of the sound wave is reflected off the surface of the object, and part of the radar echo on the reflected surface is picked up by the probe and converted into an electronic signal.
The time from ultrasonic transmission to receiving is positively correlated with the distance of the probe to the measured object. The electronic device module checks the time and calculates the measured distance based on the known wave speed. In short, it is the ultrasonic sensor, usually refers to the circuit, tests the main parameters, and has a standardized output data signal. For example, laser ranging sensor, counting sensor, double chip detection sensor and so on. Ultrasonic probes are used for ranging. It is the front end of the ultrasonic sensor, which is used to emit ultrasonic waves and receive sound waves from the reflective surface of the object. Generally speaking, it is part of the ultrasonic sensor. In other words, the ultrasonic probe usually refers to the transducer inside the sensor. Only one electroacoustic conversion module does not output a standard data signal.