Piezo Cylinders Piezo Tube Piezoelectric Cylinders PZT-5

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The conversion efficiency is related to transducer material, vibration form, structure of mechanical vibration system (including support mechanism) and working frequency. Therefore, the problem of ultrasonic transmitter is solved. There are two kinds of materials for piezoelectric ceramic transducer: magnetostrictive metal and piezoelectric ceramic. Piezoelectric ceramic transducer is a kind of electronic ceramic material with piezoelectric characteristics. The main difference between piezoelectric ceramic transducer and typical piezoelectric quartz crystal without ferroelectric component is that the crystal phase of its main component is ferroelectric grain. Because ceramics are polycrystalline aggregates with randomly oriented grains, the spontaneous polarization vector of each ferroelectric grain is also lost.

 

If the transducer made of this kind of piezoelectric ceramic is put into the water, under the action of sound wave, electric charge will be induced at both ends of the transducer, which is the acoustic receiver. In addition, the piezoelectric effect is reversible. If the alternating electric field is applied to the piezoelectric ceramic chip, the ceramic plate will become thinner and thicker from time to time, and generate vibration and sound waves. The piezoelectric ceramics must be polarized in a strong dc electric field after firing, and the end faces are subjected to multiple electrodes, so that the polarization vector of the original disordered orientation is preferentially oriented to the direction of the electric field. After the electric field is eliminated, the piezoelectric ceramics after polarization treatment will maintain a certain macro residual polarization strength, so that the ceramics have a certain pressure.

spec	Dimension (mm)	Radial frequency (KHz)	Capacitance (pf)	Dielectric dissipation factor tanδ(%)	Electromechanical coupling coefficient (Kr)	Impedance Zr(Ω)	Thickness frequency (KHz)
PU-PC25103	Φ25×Φ10×3	66.4	1240±12.5%	≤0.3	≥0.46	≤15	683±5%
PU-PC225104	Φ25×Φ10×4	66.4	930±12.5%	≤0.3	≥0.46	≤15	512±5%
PU-PC40155	Φ40×Φ12×5	45.9	2070±12.5%	≤0.3	≥0.46	≤15	410±5%
PU-PC40155	Φ40×Φ15×5	42.2	1960±12.5%	≤0.3	≥0.46	≤15	323±5%
PU-PC40176	Φ40×Φ17×6	40.5	1555±12.5%	≤0.3	≥0.46	≤15	341±5%
PU-PC40205	Φ40×Φ20×5	37.9	1700±12.5%	≤0.3	≥0.47	≤15	410±5%
PU-PC50206	Φ50×Φ20×6	33.2	2490±12.5%	≤0.3	≥0.46	≤15	341±5%
PU-PC501765	Φ50×Φ17×6.5	34.8	2430±12.5%	≤0.3	≥0.46	≤15	315±5%
PU-PC50236	Φ50×Φ23×6	31.2	2340±12.5%	≤0.3	≥0.47	≤15	341±5%
PU-PC50276	Φ50×Φ27×6	29.3	2100±12.5%	≤0.3	≥0.47	≤15	341±5%
PU-PC603010	Φ60×Φ30×10	25.3	1922±12.5%	≤0.3	≥0.47	≤18	205±5%