Ring Piezo Components

Harbin Core Tomorrow(CoreMorrow for short) provides piezoelectric components, which could be widely selected in terms of shape and size to suit your application.

CoreMorrow piezoelectric ceramics (also often called ultrasonic ceramics) contains only one piezoelectric ceramic layer inside, and there is no electrode layer inside, only the electrode layer on the outer surface, unlike the multilayer piezoelectric ceramics, there are many ceramic layers and electrode layers.

It could be used for cutting without destroying the single-layer ceramic corresponding to the positive and negative electrodes.

Features

- Monolayer piezo elements

- Ultrasonic piezo ceramic

- Max diameter to 185 mm

- Min thickness to 0.2 mm

Recommended Controllers

Model	Output voltage[V]	Output power[W]	Bandwidth(-3dB)
E01/00	120V	20W	0~50KHZ
	50V	20W	0~100KHZ
	40V	20W	0~150KHZ
E2031	300V	18W	0~500kHz
E4011	160V	80W	0~1MHz
E2021	170V	42.5W	0~1.5MHz
E1200	35V	17.5W	0~24MHz

Roughness: Rz 5-10, Ra 0,7-1,3.

Flatness: +/-10µm, depends the size.

Acoustic impedance: radialoscillation.

Output power: the output power is related to the frequency of ceramic vibration and driving voltage, etc., max to 40-50W/cm3 on the resonant frequency point.

Specifications

Comparison of piezo component and multilayer piezo stack

Attributes	Piezo component	Multilayer piezo stack
Driving voltage	High（~1kV/mm）	Low（60V/150V/200V）
Displacement	small, nanometer-scale	large, micrometer-scale
Resonant frequency	100kHz~6.6MHz	50Hz~100kHz
Capacitance	nF-scale	nF~μF-scale

Max Driving Voltage

Material	PZT4	PZT5	PZT8
AC	360~440V/mm	200~280V/mm	360~440V/mm
DC	720~880V/mm	400~560V/mm	720~880V/mm

Plate Resonant Frequency

Thickness[mm]	Resonant frequency[kHz]
20	100
10	200
4	500
2	1000
1.4	1500
1	2000
0.5	4000
0.45	4700
0.3	6600

PZT Material Properties

Symbol	P-5	P-51	P-5H	P-5G	P-4	P-41	P-42	P-43	P-8	P-81	P-82	P5-3
Density ρ (103kg/m3)	7.45	7.5	7.45	7.4	7.45	7.5	7.6	7.45	7.6	7.6	7.5	7.8
Curie Point TC (℃)	260	340	200	380	320	300	340	340	306	320	340	420
Quality Factor Qm	100	85	70	85	600	800	1200	400	1200	1100	1500	90
Elastic Constant SE11	15	16	13	15	12	12	11	11	11.2	11.5	11	10
Elastic Constant SD33	9	9	4.8	5.3	6.6	6.8	6.8	7.1	7	14.9	10	13
Elastic Constant SD55	22	23	22	25	21	21	22	22	29.4	21	20	34
Poisson Ratio σE	0.32	0.33	0.33	0.32	0.31	0.3	0.3	0.32	0.31	0.3	0.32	0.3
Dielectric Constant εT33	2100	1700	4500	2000	1200	1800	1400	2000	970	1500	1700	700
Dielectric Constant εT13	2400	2500	5800	2200	1400	2000	1600	2000	1400	2000	2300	800
Dielectric Loss tgδ%	2	2	2.3	2	0.5	0.4	0.3	0.35	0.29	0.3	0.3	1.5
Electromechanical Coupling Factor KP	0.62	0.78	0.65	0.65	0.58	0.6	0.6	0.65	0.52	0.6	0.58	0.55
Electromechanical Coupling Factor K31	0.36	0.41	0.38	0.4	0.34	0.35	0.31	0.35	0.31	0.32	0.31	0.37
Electromechanical Coupling Factor K33	0.7	0.78	0.65	0.65	0.58	0.6	0.6	0.65	0.52	0.6	0.58	0.68
Electromechanical Coupling Factor K15	0.68	0.71	0.65	0.69	0.63	0.65	0.63	0.65	0.57	0.6	0.62	0.65
Electromechanical Coupling Factor KT	47	0.5	0.46	0.48	0.48	0.5	0.5	0.47	0.46	0.45	0.46	0.39
Piezoelectric Charge Constant d31×10-12C/N	185	190	186	186	100	105	101	110	90	98	90	80
Piezoelectric Charge Constant d33×10-12C/N	400	460	670	420	340	320	330	330	232	300	280	230
Piezoelectric Charge Constant g31×10-3vm/N		-9.5	-9	-11
Piezoelectric Charge Constant g33×10-3vm/N		22	28	26
Piezoelectric Charge Constant g15×10-3vm/N		32	40	31
Nd，Hz·m	2000	2250	2110	2100	2250	2250	2200	2190	2250	2200	2300	2300
Nd，Hz·m	1400	1450	1350	1350	1650	1690	1750	1600	1700	1650	1710	1700
Nd，Hz·m	1900	2000	1850	1850	1950	1980	1990	1890	1950	1940	1960	1800
Nd，Hz·m	1220	1230	1100	1100	1230	1220	1200	1210	1182	1100	1185	1200
Nd，Hz·m	2250	2200	2200	2200	2270	2280	2200	2285	2250	2260	2270	2200

Dimensions

OD (mm)

TH*(mm)

0.2

0.3

0.4

0.5

0.6

0.7

0.8

√

100

√

120

√

140

√

160

√

170

√

185

√

Contact

Customer Center

Piezo Solutions (CoreMorrow)

전체보기