Article List

• "Piezoelectric Ceramics" for tight materials for epidemic coronavirus prevention and control

  After 76 days of "closing the city",Finally WuHanis unblocked on April 8th. With the efforts of the whole people, it lasted more than two months. The domestic epidemic situation can be said to have been "controlled." The overseas epidemic situation is still severe (the number of newly diagnosed over

  April 13, 2020
• Application and characteristics of focused ultrasound product

  Application and characteristics of focused ultrasound:The low-frequency concave-convex piezoelectric ceramic transducer has been theoretically and finite-element-analyzed. The transducer has the characteristics of low resonance frequency, small impedance, high emission voltage response, small 360-de

  Basics of Piezoelectric Ceramics April 07, 2020
• What is non-destructive testing (NDT)? What are the common NDT methods?

  NDT is the abbreviation of Non-destructive Testing.NDT refers to a test method that does not damage or affect the future performance or use of materials or workpieces.By using NDT, defects in the interior and surface of materials or workpieces can be found, geometric characteristics and dimensions o

  Basics of Piezoelectric Ceramics April 07, 2020
• Non-destructive Testing of Pressure Vessel——Non-destructive test of Automobile and Railway Tanker

  Abstract: Summarize the defects and possible non-destructive testing methods used in the manufacture and use of automobiles and railway tankers, including radiation, ultrasound, magnetic particles, penetration, magnetic leakage, acoustic emission, and magnetic memory testing, etc., and introduce eac

  Basics of Piezoelectric Ceramics March 30, 2020
• Touch screen for piezoelectric ceramic applications

  Touch screen (also known as "touch screen", "touch panel") is an inductive liquid crystal display device that can receive input signals such as contacts. When a graphic button on the screen is touched, the The haptic feedback system can drive various connected devices according to a pre-programmed p

  Basics of Piezoelectric Ceramics March 30, 2020
• Piezo effect and piezoelectric acoustic sensor

  Acoustic emission signals are propagating in the solid media contain characteristic information of acoustic emission sources. To use this information to reflect material characteristics or the development of defects, it is necessary to receive such acoustic emission signals on solid surfaces. Acoust

  Basics of Piezoelectric Ceramics March 26, 2020
• Parameters of piezoelectric materials and piezoelectric equations (3)

  Parameters of piezoelectric materials and piezoelectric equations (3)(11)Mechanical quality factor QmWhen the PZT material piezo ceramic is used for resonance vibration, it is necessary to overcome the internal mechanical friction loss (internal consumption), and when there is a load, it is necessar

  Basics of Piezoelectric Ceramics March 23, 2020
• Parameters of PZT materials and piezoelectric equations (2）

  Second, the piezoelectric parameters3. There is a complicated relationship between the piezoelectric parameters of piezoelectric materials, such as e = dE and E = -he as described above. Comparing them seems to give d = -1 / h, but it is not true in practice. Because the former is given under the co

  Basics of Piezoelectric Ceramics March 20, 2020
• Parameters of piezoelectric materials and piezoelectric equations (1)

  First, the piezoelectric equation.For the performance of piezoelectric materials, we have the following four considerations: 1. Piezoelectric materials are elastomers, which obey Hooke's law in terms of mechanical effects, that is, the elastic relationship between stress τ and strain e: τ = ce Or e

  March 20, 2020
• Parameters of piezoelectric materials and piezoelectric equations (4)

  Four. Classification of piezoelectric materials1. The first type of piezoelectric material piezoelectric single crystal .This is a naturally occurring or artificial single crystal ferroelectric material with anisotropy. Its piezoelectric effect is based on the composition of the crystal structure Ca

  Basics of Piezoelectric Ceramics March 23, 2020