With the development of electronic computers, production automation, modern information, military, transportation, chemistry, environmental protection, energy, marine development, remote sensing, aerospace and other scientific technologies, the demand for sensors is increasing day by day. Various de

With the rapid development of technological level, in real life, it is not difficult to find the application of ultrasonic sensors. Ultrasonic sensors are widely used in manufacturing, electric power, metallurgical measured building materials, chemical industry, food, automobile, warehousing, shippi

The ultrasonic transducer sensor is an ultrasonic pulse signal sent by an ultrasonic probe, which is propagating in the gas, and is reflected after meeting the interface of air and liquid. After receiving the echo signal, the ultrasonic round-trip propagation time is calculated, and the distance or

When is faced with thousands of thermistor types, selection may cause considerable difficulties. In this technical article, I will introduce you to some important parameters to keep in mind when is choosing a thermistor, especially when you want to use two commonly used thermistor types for temperat

The ultrasonic receiver is composed of an ultrasonic transducer and a receiving circuit. In order to achieve a wide range of ultrasonic ranging, it is required not only that the ultrasonic receiving circuit can amplify the weak signal reflected from the distant target, but also that the strong signa

There are many methods for measuring distance ultrasonic sensors, and the most used ones are Pellam and Galt in 1946.The pulse echo method proposed in the year, the working principle of the ultrasonic probe is excited by the ultrasonic frequency pulse to radiate the ultrasonic wave outside, and the

Ultrasonic transducers are essentially a class of electromechanical energy conversion devices, which can be divided into piezoelectric, electromagnetic and magnetostrictive types according to their working principles. At present, common ultrasonic transducers are generally piezoelectric, which works

Ultrasonic waves have beam and reflection characteristics, which can basically travel along a straight line, and their energy is much larger than the low frequency sound waves of the same amplitude. The non-contact ultrasonic ranging sensor is made by using this characteristic of ultrasonic waves. I

When ultrasonic distance measurements transducers are made on the tree barriers in transmission corridors, most of the crowns in the corridors are not a smooth surface, the canopy is non-specular reflection of the signal from the ultrasonic detector, ultrasonic absorption effect is large, and the si

Researching on acoustic transducer layer materials began in the 1980s. In 1998, Kim Yeonbo and Roh Yongrae uses the method of time domain analysis to theoretically give a suitable for broadband, it is high energy ultrasound structure of the energy device and the best acoustic impedance matching valu

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

Ultrasonic sensor is developed based on ultrasonic characteristics .