Piezoelectric Ring-Ultrasonic Vibration Transducer
Piezoelectric ceramic ring
Application: piezoelectric vibration transducer
Ultrasonic transmitter transmits ultrasound in a certain direction. At the same time, it starts timing. Ultrasound spreads in the air. When it encounters obstacles on the way, it returns immediately. When the ultrasonic receiver receives the reflected wave, it stops timing immediately. The propagation speed of ultrasonic wave in air is 340m/s. According to the time t recorded by the timer, the distance (s) between the transmitting point and the obstacle can be calculated, that is, s = 340t/2. This is the so-called time difference ranging method.
The principle of ultrasonic ranging is to use the propagation speed of ultrasonic wave in the air as known, measure the time when the acoustic wave meets the obstacle after launching, and calculate the actual distance from the launching point to the obstacle according to the time difference between launching and receiving. Therefore, the principle of ultrasonic ranging is the same as that of radar.
Material: PSnN-5 (soft PZT material)
Piezoelectric Technical data:
Dimensions: OD 16mm, ID7mm, thickness 2.5mm
Radial Frequency Fr: 90KHz ± 5%
Thickness Frequency Ft: 870KHz ± 5%
Frequency Bandwidth ΔF>6830Hz
Resonate Impedance R<20 Ω
Electromechanical coupling coefficient Kp: > 0.35
Dielectric Loss tg δ: <0.5
Static capacitance Cs: 899pF±20%
Test Condition: 25±3 °C 40~70% R.H.
fr, Zm, Kr => Radial mode vibration
Cs tanδ => LCR meter at 1KHz 1Vrms
Yuhai company provides
Piezoceramic materials (PZT) , more than 30 formulations of piezo materials
Customized piezo ceramic components and ultrasonic transducers/transducers
Various different shapes in many different geometries such as disks, plates, tubes, customized shapes
High resonant frequencies to 10 MHz
Piezo composite machining
Core Competences of Yuhai piezo ceramic elements
More than 50 years professional piezoelectric ceramic manufacturing experience.
more than 30 formulations of piezoelectric materials, stable and superior performance, to meet various piezo applications.
Forming process with dry pressing, rolling film and isostatic pressing.
High precision machining equipment for other special shaped components such as inner, outer circle and hemisphere.
be the manufacturer of supplying the most complete components varieties in China.
Certified in accordance with ISO 9001.
product consistency reached 99.9%
Piezo transducers for ultrasonic applications
Assembly of complete transducer components