Article List

• The design of the front-end circuit of the ultrasonic sensor

  The design of the front-end circuit of the ultrasonic sensor

  Ultrasonic Transducer information September 22, 2020
• Study on Acoustic Emission of Crack Propagation in Piezo Ceramic Materials under Thermal Stress (2)

  Acoustic emission characteristics of crack propagation when temperature sensor slowly changes.As the temperature of PZT material piezoceramics rises and cools slowly, the acoustic emission caused by the crack growth caused by the internal thermal stress of the sample is shown in Figure 3. The heatin

  March 02, 2020
• What’s the hardness tester

  What’s the hardness tester Test principleWith the development of monolithic technology in 1978, Dr. Leeb of Switzerland proposed a new method for measuring the hardness for the first time. Its basic principle is that a certain mass impact body effects the

  April 10, 2018
• What is a piezo buzzer used for ?

  A buzzer or beeper is an audio signalling device,[1] which may be mechanical, electromechanical, or piezoelectric (piezo for short). Typical uses of buzzers and beepers include alarm devices, timers, and confirmation of user input such as a mouse click or keystroke.Piezoelectric HistoryPiezoelectri

  Basics of Piezoelectric Ceramics August 17, 2019
• Composition and principle of piezo disc benders

  Composition of piezo disc bendersThe unimorph piezo disc benders are made of lead zirconate titanate or lead magnesium niobate piezoelectric ceramic material. Silver electrodes are plated on both sides of the ceramic sheet, and after polarization and aging treatment, they are adhered to the brass sh

  Basics of Piezoelectric Ceramics July 11, 2019
• Electroacoustic component - piezoelectric ceramic pronunciation chip

  Piezo sounder ceramic element is a piezoelectric ceramic that can vibrate and sing under the excitation of an alternating electric field after being bonded to a metal substrate. However, because the acoustic impedance of the air does not match, the sound emitted is very small; the high-decibel buzze

  Basics of Piezoelectric Ceramics July 10, 2019
• Single-side ground alumina piezo ceramic substrate

  By adding a rust inhibitor, the alumina piezo ceramic substrate can be effectively prevented from becoming yellowish after polishing, and the polishing effect is not affected. Therefore, in the high-efficiency thinning and ultra-smooth polishing of alumina piezo ceramic substrates, it is possible to

  Basics of Piezoelectric Ceramics October 10, 2018
• Classification of piezoelectric ceramics material

  Classification of piezoelectric ceramics material Piezoelectric ceramics element are a functional piezo ceramic material that can convert mechanical energy and electrical energy into each other.About piezoelectric effect,in addition to piezoelectricity, piezoelectric ceramics also have dielectric pr

  Piezoelectric ceramic properties September 20, 2018
• Piezoelectric ceramic characteristics analysis

  piezoelectric effect and dielectric effect of piezoelectric ceramic The piezoelectric effect is that when some dielectrics are deformed by an external force in a certain direction, polarization occurs inside, and positive and negative opposite charges appear on the two opposite surfaces thereof. Wh

  Ceramic properties research September 20, 2018
• Parameters of piezoelectric material

  Piezoelectric ceramic materials have piezoelectric properties, not only have physical and mechanical properties, but also have piezoelectric properties. The parameters that generally describe the piezoelectric properties,it is frequency constant N, piezoelectric coefficient, electromechanica coeffic

  Basics of Piezoelectric Ceramics August 07, 2018