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Piezoelectric Discs For Flow measurement
Piezoelectric Discs For Flow measurement

Piezoelectric Discs For Flow measurement

Basic Info

    Model No.: Discs

Product Description

Piezoelectric ceramic disc For flowmeter

Quick delivery, Stable performance,wrapped around electrode on request, high consistance.


There are two main types of ultrasonic flow meters: Doppler and transit time. While they both utilize ultrasound to make measurements and can be non-invasive (measure flow from outside the tube, pipe or vessel). Various kinds of ultrasonic flowmeters have been widely used in industrial production, commercial measurement and hydraulic testing.



Diameter: 5-100mm

Frequency: 200KHz- 10MHz



Piezoelectric ceramic materials for liquid & Gas flowmeter sensor


"Soft" PZT materials
Properties PZT-51 PLiS-51 PSnN-5
Dielectric Constant ɛTr3 2200 2000 1600
Coupling factor KP 0.62 0.62 0.6
K31 0.35 0.35 0.35
K33 0.68 0.7 0.68
Kt 0.5 0.52 0.5
Piezoelectric coefficient d31 10-12m/v -186 -197 -170
d33 10-12m/v 500 450 400
g31 10-3vm/n -9.6 -11.1 -12
g33 10-3vm/n 25.6 25.4 28
Frequency coefficients Np 1980 1920 2000
N1 1451 1407 1466
N3 1900 1925 1825
Nt 2150 2100 2100
Elastic compliance coefficient Se11 10-12m2/n 16.7 18 16.6
Machanical quality factor Qm 80 80 85
Dielectric loss factor Tg δ % 2 2 2
Density ρ g/cm3 7.6 7.5 7.5
Curie Temperature Tc °C 270 345 350
Young's modulus YE11 <109N/m3 60 56 60
Poison Ratio 0.36 0.36 0.36



Recommened Material: PZT-51 (equal to PZT-5A).


PZT-51 is a modified SOFT PZT for general purpose. It is dedicated to low aging rate and extremely stable performance requirement etc. transducers and PZT-51 has high sensitivity, permittivity, and time stability in applications when used as the receiver or generator element in accelerometers, vibration pickups, and hydrophones Applications.








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Product Categories : Piezoelectric Discs For Flowmeter Sensor

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