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SeriesUltrasonic Electromotor Components

Applicationsultrasonic electromotor

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Detail Introduction

Piezo Components for Ultrasonic Electromotor

Piezoelectric ceramic is the core element of the vibration of ultrasonic electromotor's stator.Its performance will directly affect the output performance of ultrasonic electromotor. We can supply a wide selection of high-quality ceramic elements with good dielectric temperature stability, low dielectric loss, and good consistency among divided electrodes in terms of d33 as well as static capacitance.


Main Parameters

Part NumberHTCH
External Diameterφ30~φ80mm
Internal Diameter φ20~φ60mm
Dielectric Loss tgδ≤0.4%
Relative Dielectric Constantε33T/ε01200、1500
Piezoelectric Strain Constant(d33)(C/N)250X10-12、320X10-12
Recommended MaterialP-669、P-679


Electrical Data

Symbol

Main Materials

P-659

P-660

P-663

P-664

P-666

P-667

P-668

P-669

P-672

P-673

P-676

P-678

P-679

P-690

Piezoelectric coupling coefficien

kp

0.58

0.70

0.67

0.67

0.78

0.10

0.68

0.62

0.70

0.68

0.7

0.72

0.65

0.74

k31

0.32

0.39

0.38 

0.37

0.42


0.39

0.35

0.41

0.39

0.45

0.42

0.38

0.40

k33

0.60

0.73

0.70 

0.70

0.78


0.70

0.68

0.72

0.70

0.80

0.72

0.70

0.75

kt

0.42

0.46

0.45

0.45

0.50

0.45

0.46

0.44

0.46

0.46

0.50

0.47

0.46

0.48

Relative dielectric constant

εT33 / ε0

1100

3200

2200

2800

4500

180

2300

1400

3400

2200

6000

2750

1600

3800

Piezoelectric charge constant

d33×10-12C/N

280

700

400

480

780

70

430

250

600

430

850

540

320

710

d31×10-12C/N

-120

-350


-200

-350


-230

-130

-280

-230

-420

-260

-150

-360

Mechanical quality factor

Qm

100

60

80

500

60

2500

90

1000

80

90

60

80

1000

70

Frequency constant

fr·d     kHz·cm

230

190

 200

220

180


200

230

190

200

180

190

230

190

fr·t     kHz·cm

210

200

200




225

200


225



200

200

Temperature characteristics

| TKf| (-20~80)
×10-6 / 

100

260

300

120 

400 

30 

150

100

300

100

400

200

100

260

| TKC| (-20~80)
×10-6 / 

1500

4500

5000 

2500 

6000


1800

1500

4000

2000

6000

3000

1500

4000

Curie temperature

Tc

320

220

220

230

180

450

355

340

230

325

140

280

330

210

Dielectric loss

tgδ(%)

1.20

1.80

2.00

0.50

2.60

0.70

2.00

0.30

2.30

2.00

2.60

1.50

0.40

1.80

Dielectric loss

tgδ(400V/mm,%)








1.00





1.00



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Zhejiang Jiakang Electronics Co., Ltd.
浙江嘉康电子股份有限公司

Tel:+86-573-82600913

Fax:+86-573-82600916

E-mail:overseas_sales@jkelec.com

Address:No.1188 Jiahang Road, Jiaxing City, Zhejiang Province, China