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Piezoelectric disc flow measurement

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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 disc flow measurement

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Piezoelectric ceramic disc Quick shipmentsHigh performancewrapped arround electrode availableApplication: ultrasonic flowmeter Compared with traditional flow meter method, buoy method and ultrasonic method, modern river flow measurementtechnology is faster, more efficient and more accurate. With the support of computer technology, the test instrument can not only collect a large amount of data at any time and place, but also overcome the influence of water pulsation and other factors, which makes people refreshed. At present, there are two kinds of river flow measurement techniques commonly used in our country, one is using radar velocimeter to test and the other is using acoustic Doppler velocimeter to test.Material: PZT-51 (equal to PZT-5A) PZT -51 is equal to PZT-5A, with low aging rate, extremely stable performance and high frequency requirement etc. transducersTechnical data:Dimensions: diameter 100mm, thickness according to frequency 200KHz

 Radial Frequency(Fm) 20KHz ± 2KHz
Thickness Frequency(Ft) 200KHz ± 5%
Statics Capacity (pF)  11340pF ± 12.5%
Electromechanical coupling coefficient Kp:  ≥ 0.60   

Test Condition: 25±3 °C 40~70% R.H.

fr, Zm, Kr => Radial mode vibration

Cs tanδ => LCR meter at 1KHz 1Vrms

Selection of Piezo-ceramic Properties

Properties(unit)

 

Power transducers

Sensors

Actuators

Relative permittivity ε33 τ/ε0

1,000 – 1,395

1,500 – 3,400

1,800 – 3,800

Loss factor tan δ

1.6x10-3 – 

12x10-3 – 

15x10-3 – 

3.0x10-3

20x10-3

16x10-3

Frequency constant NP( KHz⋅mm)

2,120 – 2,320

1,975 – 2,050

1,960 – 2,010

Coupling factor kP

0.54 – 0.58

0.59 – 0.62

0.65

Charge constant d33, (10-12 C/N)

240 – 315

390 – 620

475 – 680

Voltage constant g33, (10-3 Vm/N)

24.6 – 27.1

22.7 – 33.1

20.2 – 28.5

Elastic compliance S11ε,  (10-12 m2/N)

10.9 – 14.9

16.3 – 18.5

15.8 – 17.9

Elastic stiffness C33D, (1010N/m2)

12.19 – 16.2

10.6 – 15.8

14.7 – 15.2

Density  (g/cm2)

7.50 – 7.70

7.65 – 7.80

7.70 – 7.83

Quality   Qm

500 – 1,200

60 – 90

75 – 80

Aging rate Cε, %

-4.6 to -3.0

-2.3 to -0.3

- 1.6 to -0.8

 

 

 

 

 

 

 

 

 

Yuhai company providesŸ Piezoceramic materials (PZT) , more than 30 formulations of piezo materialsŸ Piezoceramic componentsŸ Customized piezo ceramic components and ultrasonic transducers/transducersŸ Various different shapes in many different geometries such as disks, plates, tubes, customized shapesŸ High resonant frequencies to 10 MHzŸ Piezo composite machiningCore Competences of Yuhai piezo ceramic elementsŸ more than 30 formulations of piezoelectric materials, stable and superior performance, to meet various piezo applications.Ÿ Forming process with dry pressing, rolling film and isostatic pressing.Ÿ High precision machining equipment for other special shaped components such as inner, outer circle and hemisphere.Ÿ be the manufacturer of supplying the most complete components varieties in China.Ÿ Certified in accordance with ISO 9001.Ÿ product consistency reached 99.9%OEM AdaptationsŸ Piezo transducers for ultrasonic applicationsŸ Assembly of complete transducer components

YUHAI

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EMAILS: sales@zbyuhai.com

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