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Piezoelectric rings for Inkjet Printer

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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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Piezoelectric rings for Inkjet Printer

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Product Description

Parameters

Piezoelectric ceramic ring

Electrode direction: thickness

Applications: ultrasonic vibration tranducer for inkjet printer

Vibration mechanism of inkjet printer:

Generally, it is composed of piezoelectric ceramics and driving rods. By high-frequency electric excitation, piezo ceramics produce high-frequency ultrasonic vibration (above 60 kHz or higher), which is transmitted to the driving rod and generates high-frequency micro-displacement (back and forth expansion) at its front end.

Piezo ceramics components features :

1. High vibration amplitude and can withstand higher power.

2. The product has high reliability, strong maintainability, and is not easy to break down or off-line.

3. The frequency can be adjusted in a wide range, generally within the range of 10KHz.

Piezoelectric Ceramic Material: PZT-41 (equal to PZT-4D)

Piezoelectric elements technical data:

Dimensions: out diameter 6mm, inner diamter 2.5mm, height 2 mm

Radial Frequency Fr: 789KHz ± 5%

Resonant Impedance R: < 20 Ω

Mechanical Coupling coefficient K33 >0.50

Dielectric Loss tg δ: ≤ 0.3%

Static capacitance Cs: 110pF±12.5%

Test Condition: 25±3 °C 40~70% R.H.

fr, Zm, Kr => Radial mode vibration

Cs tanδ => LCR meter at 1KHz 1Vrms

The following piezo materials is for the vibration transducer

P-41	is equal to PZT-4D hard PZT. It is designed for higher dielectric constant, high Q m , high coercive field, high coupling and high stiffness required high power high driving transducers etc.
P-42	Is a modified hard PZT, higher dielectric constant of P-41.
P-43	is a modified hard PZT. It is developed for higher dielectric constant, high coupling and high stiffness required high power high driving etc. transducers
P-82	Is equal to PZT-8, hard PZT for higher mechanical quality factor, lower dielectric loss required and much higher power handling capability etc. transducers.
PCrN-4	is a modified PZT dedicated for extremely high power high driving etc. transducers with higher power handling capability than DL-43, dual function of receiver and transmiting transducer.
PbaS-4	is a modified hard PZT developed for extremely high dielectric constant, high Q m , high stiffness and low dissipation factor required high frequency transducers etc.

Typical value of piezoelectric ceramic materials performance
"Hard" PZT materials
Properties			PZT-41	PZT-42	PZT-43	PZT-82	PCrN-4	PBaS-4
Dielectric Constant	ɛTr3		1050	1250	1420	1100	1600	1900

Coupling factor	KP		0.58	0.58	0.58	0.52	0.6	0.59
	K31		0.32	0.33	0.34	0.3	0.35	0.34
	K33		0.66	0.67	0.68	0.57	0.68	0.68
	Kt		0.48	0.48	0.48	0.4	0.45	0.49
Piezoelectric coefficient	d31	10-12m/v	-106	-124	-138	-100	-156	-160
	d33	10-12m/v	260	280	300	240	350	380
	g31	10-3vm/n	-11.4	-11.2	-11	-10.3	-11	-9.5
	g33	10-3vm/n	28	25.3	24	25	24.7	22.6
Frequency coefficients	Np		2280	2200	2160	2280	2100	2200
	N1		1671	1613	1583	1671	1539	1613
	N3		1950	1900	1875	1950	1850	1850
	Nt		2250	2200	2200	2300	2200	2200
Elastic compliance coefficient	Se11	10-12m2/n	11.8	12.7	13.2	11.6	14	13.2
Machanical quality factor	Qm		1000	800	600	1200	400	2200
Dielectric loss factor	Tg δ	%	0.3	0.4	0.5	0.3	0.6	0.5
Density	ρ	g/cm3	7.5	7.5	7.5	7.6	7.5	7.5
Curie Temperature	Tc	°C	320	320	320	310	310	310
Young's modulus	YE11	<109N/m2	85	79	76	86	71	76
Poison Ratio			0.3	0.3	0.3	0.3	0.3	0.33