Design of single chip circuit:Because the microcontroller integrates the watchdog, CCU comparison unit, analog comparator, A/D converter and other components, it simplifies the circuit design and saves costs.The MCU is powered by +3V and is supplied by the regulator chip HT7130. It uses a 2.4576MHz

Ultrasonic testing technology is a typical non-contact measuring method, which is based on electronics, materials science, physics, etc., and it is widely used. As a type of wave, ultrasonic transducers have all the properties of a wave. Ultrasonic testing is achieved by the physical process of ultr

One can hear that the sound is generated by the vibration of the object. Its frequency of transducer for distance is in the range of 20HZ-20KHZ, the ultrasonic wave is more than 20KHZ, and the infrasound wave is lower than 20HZ. Commonly used ultrasonic frequencies are tens of KHZ-tens of MHZ. Since

Types of Ultrasonic distance measuring sensorUltrasound has the advantages of strong directivity,which slows energy consumption and long distance of propagation. Therefore, in the transducer for distance by using sensor technology and automatic control technology, ultrasonic ranging is the most popu

When the axial and radial electromechanical factors of the disc-type piezoelectric vibrator are relatively strong, the one-dimensional theory established by the pure radial model or the pure thickness model is not accurate enough. Between the theoretical calculated value and the experimental value.

Modeling and experiment of ultrasonic transducer in the air medium, the frequency band of the ultrasonic sensor is generally narrow, which directly affects its detection performance for high-speed moving targets. In order to solve the narrow band of the ultrasonic sensor, a micro-miniature transduce

At present, there are two types of ultrasonic transducer sensor, one is an in-vehicle integrated probe, other is an integrated transmitting and receiving probe . The other is a separating design for sending and receiving. The basic principle of its implementation is that the transmitting probe emits

Principle and application of ultrasonic position sensorUltrasound waves is a general term for mechanical waves whose frequency exceeds the human 's auditory frequency limit (approximately 20 kHz). Ultrasonic waves are generated by vibration transducer under the excitation of voltage. Distance measur