In the industry, the typical application of ultrasonic distance transducers are non-destructive testing of metals and ultrasonic thickness measurement. In the past, many technologies were hindered by inability detecting the inside of objects, and the emergence of ultrasonic sensing technology change

Ultrasonic distance sensor can be widely used in related fields such as level, liquid level, monitoring, robot anti-collision, various ultrasonic proximity switches and anti-theft alarms. It is reliable in the operation, easy to install, waterproof, with small angle of launch, high sensitivity and c

In the industry, the typical application of ultrasonic waves is non-destructive testing of metals and ultrasonic thickness measurement. In the past, many technologies were hindered by the inability to detect the inside of objects, and the emergence of ultrasonic sensing technology changed this situa

Ultrasonic ranging transducer at low SNR and low sampling rates based on cross-correlation function. The specific method is as follows the ultrasonic signal sent by the transmitter is used as a reference signal, and the output of the receiver is immediately sampled at the end of each transmission of

The ultrasonic transducers is bonded with two symmetrical metal shells and piezoelectric ceramic discs are polarized in the thickness direction with super glue to form a metal-ceramic composite type, its working mechanism is transforming for the high-impedance,small-radial expansion and contraction

In order to facilitate the application and significance of the research topic of the large range ultrasonic ranging system in the following chapters, it is first necessary to understand the research status and development trend of the current automotive ranging sensor technology field. a brief intro

In this section, two kinds of piezoelectric ceramics composite materials with a center frequency of around 50 MHz are prepared to prepare two kinds of poly. Focused ultrasonic transducers in the form of a focal point are spherical focus and cylindrical line focus, respectively. The schematic diagram

An acoustic ranging sensor is developed to measure the separation distance between rocket stages. The structure is a radioactive source and exploration.The distance measuring transducers are mounted face-to-face on two-stage rockets, and the number of particles detected during the separation process

high-temperature thin-film ultrasonic transducerA wide range of high-temperature thin-film ultrasonic transducer are introduced. high-temperature thin-film strain gauges and high-temperature thin-film strain gauges are used for alloy thin films duo to the sensitive

(1) Operating frequency.The operating frequency is the resonant frequency of the ultrasonic distance measurement sensor. When the frequency of the AC voltage is applied to both ends which is equal to the resonance frequency of the piezo crystal, the output energy is maximum and the sensitivity is th