38*13*6 4 мм пьезоэлектрическое керамическое

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38*13*6.4mm Piezo Vibration Element Piezoelectric Ceramic Ring Pzt 4

Piezoelectric ceramics is a kind of information functional ceramic material that can convert mechanical energy and electrical energy to each other-piezoelectric effect. In addition to piezoelectricity, piezoelectric ceramics also have dielectric properties, elasticity, etc., and have been widely used in medical imaging, Acoustic sensors, acoustic transducers, ultrasonic motors, etc. Piezoelectric ceramics are made by using their materials to cause relative displacement of the positive and negative charge centers inside the material under the action of mechanical stress, resulting in polarization, resulting in the opposite signs of bound charges appearing on both ends of the material, that is, the piezoelectric effect. It has sensitive characteristics. Ceramics are mainly used to manufacture ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optical devices and In addition to being used in high-tech fields, piezoelectric ceramic are used to serve people in daily life and work hard to create a better life for people.

Piezoelectric ceramics Alumina ceramics is the most widely used, most versatile, and most productive ceramic material among oxide ceramics.

When voltage is applied to piezoelectric ceramics, it will produce mechanical deformation with changes in voltage and frequency. On the other hand, when the piezoelectric ceramic is vibrated, an electric charge is generated. Using this principle, when an electrical signal is applied to a vibrator composed of two piezoelectric ceramics or a piezoelectric ceramic and a metal sheet, the so-called bimorph element, ultrasonic waves will be emitted due to bending vibration. On the contrary, when ultrasonic vibration is applied to the piezoelectric bimorph element, an electrical signal is generated. Based on the above effects, piezoelectric ceramics can be used as ultrasonic sensors.

Piezoelectric ceramics are functional ceramic materials that can mutually convert mechanical energy and electrical energy, and belong to inorganic non-metallic materials. At the same time, it has a positive and negative piezoelectric effect. The piezoelectric ceramic wafers produced by Changzhou Ultrasonic Electronics Co., Ltd. are mainly used in the fields of ultrasonic probes, ultrasonic medical treatment, ultrasonic flowmeters, and automatic control. With outstanding performance and complete specifications, PZT piezoelectric wafers and new composite piezoelectric wafers can meet different types of needs. 

Specification	Dimension (mm)	Radial frequency (KHz)	Capacitance (pf)	Dielectric dissipation factor tanδ(%)	Electrome chanical coupling coefficient (Kr)	Impedance Zr(Ω)	Thickness frequency (KHz))	Mechanical quality factor  (Qm)
OKS-PR-25103	Φ25×Φ10×3	66.4	1240±12.5%	≤0.3	≥0.46	≤15	683±5%	800
OKS-PR-225104	Φ25×Φ10×4	66.4	930±12.5%	≤0.3	≥0.46	≤15	512±5%	800
OKS-PR-40155	Φ40×Φ12×5	45.9	2070±12.5%	≤0.3	≥0.46	≤15	410±5%	800
OKS-PR-40155	Φ40×Φ15×5	42.2	1960±12.5%	≤0.3	≥0.46	≤15	323±5%	500
OKS-PR-40176	Φ40×Φ17×6	40.5	1555±12.5%	≤0.3	≥0.46	≤15	341±5%	800
OKS-PR-40205	Φ40×Φ20×5	37.9	1700±12.5%	≤0.3	≥0.47	≤15	410±5%	800
OKS-PR-50205	Φ50×Φ20×5	33.2	2490±12.5%	≤0.3	≥0.46	≤15	341±5%	500
OKS-PR-50206	Φ50×Φ20×6	33.2	2490±12.5%	≤0.3	≥0.46	≤15	341±5%	500
OKS-PR-502065	Φ50×Φ20×6.5	33.2	2490±12.5%	≤0.3	≥0.46	≤15	341±5%	500
OKS-PR-50175	Φ50×Φ17×5	34.3	2430±12.5%	≤0.3	≥0.46	≤15	315±5%	800
OKS-PR-50176	Φ50×Φ17×6	34.3	2430±12.5%	≤0.3	≥0.46	≤15	315±5%	800
OKS-PR-501765	Φ50×Φ17×6.5	34.8	2430±12.5%	≤0.3	≥0.46	≤15	315±5%	800
OKS-PR-50236	Φ50×Φ23×6	31.2	2340±12.5%	≤0.3	≥0.47	≤15	341±5%	800
OKS-PR-50276	Φ50×Φ27×6	29.3	2100±12.5%	≤0.3	≥0.47	≤15	341±5%	800
OKS-PR-603010	Φ60×Φ30×10	25.3	1922±12.5%	≤0.3	≥0.47	≤15	341±5%	800