Zibo Yuhai Electronic Ceramic Co., Ltd.
Address : No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China
Tel : +86-0533-4230012
Fax : +86-0533-4231700
Email : sales@zbyuhai.com

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Ultrasonic pickup Piezo Tube Components

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Product Description

Parameters

Material: PLiS-51 ( equal to PZT-5A)

Technical data:

Dimensions: OD 14mm, ID11.6mm, height 10mm

Radial Frequency Fr: 68KHz ±2KHz

Electromechanical coupling coefficient K31: >0.36

Dielectric Loss tg δ: <2.00%

Static capacitance Cs: 5868pF± 12.5%

Test Condition: 25±3 °C 40~70% R.H.

fr, Zm, Kr => Radial mode vibration

Cs tanδ => LCR meter at 1KHz 1Vrms

PLiS-51 is a high Curie temperature version of P-51. It is dedicated to low aging rate, extremely stable performance and high frequency requirement etc. transducers

Applications: underwater ultrasonic receiver transducer

When the ultrasonic wave propagates, it will reflect when it meets the target. When the echo acts on the crystal of the underwater acoustic transducer, the electrical signals may be obtained on the two ends of the transducer due to the piezoelectric effect. Like radar antenna, underwater acoustic transducer not only transmits and receives ultrasonic signals, but also has sharp directionality. Only in this way can the azimuth of the target be determined. Sonar devices use many piezoelectric crystals to form transducer arrays to achieve sharp directivity. Therefore, the underwater acoustic transducer of sonar is very large, and it is usually installed in the underwater part of the bow of a warship.

Transducers are devices that convert sound energy to electricity (or two different forms of energy). Most of the underwater acoustic transducers/equipments use electro-acoustic conversion, because this conversion mode is most convenient for manual control. The transducer used underwater is called underwater acoustic transducer.

The ultrasonic transducer is called the transmitting transducer, which generates electrical signals from the electronic oscillator to excite the transducer to produce mechanical vibration, and thus propels the water medium to emit acoustic waves into the water. Conversely, the transducer that generates vibration under the excitation of sound wave and converts sound energy into electricity is called receiving transducer or hydroph

"Soft" PZT materials
Properties			PZT-51	PZT-52	PZT-53	PZT-5H	PLiS-51
Dielectric Constant	ɛTr3		2200	2400	2600	3200	2000
Coupling factor	KP		0.62	0.63	0.64	0.68	0.62
	K31		0.35	0.35	0.36	0.38	0.35
	K33		0.68	0.7	0.7	0.76	0.7
	Kt		0.5	0.5	0.5	0.52	0.52
Piezoelectric coefficient	d31	10-12m/v	-186	-204	-227	-275	-197
	d33	10-12m/v	500	520	550	620	450
	g31	10-3vm/n	-9.6	-9.8	-9.9	-9.7	-11.1
	g33	10-3vm/n	25.6	24.5	23.9	22	25.4
Frequency coefficients	Np		1980	1980	1960	1900	1920
	N1		1451	1451	1437	1393	1407
	N3		1900	1900	1755	1550	1925
	Nt		2150	2150	2150	2100	2100
Elastic compliance coefficient	Se11	10-12m2/n	16.7	17	17.4	18	18
Machanical quality factor	Qm		80	75	75	70	80
Dielectric loss factor	Tg δ	%	2	2	2	2	2
Density	ρ	g/cm3	7.6	7.6	7.6	7.5	7.5
Curie Temperature	Tc	°C	270	270	270	230	345
Young's modulus	YE11	<109N/m3	60	59	57.5	56	56
Poison Ratio			0.36	0.36	0.36	0.36	0.36