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PZT Material Piezo Ceramic Disc for Distance Sensors

Size:
Diameter :7.4mm
Thickness:1.3mm
Material: pzt4

Quantity:
  • PZ1000K0086
  • Piezohannas
  • PZ1000K0086

            PZT Material Piezo Ceramic Disc for Distance Sensors



WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.


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31AFB9AEF0A775B05FBF843CEB753E4E.jpg  piezoceramic materials piezoelectric disc


Piezo Ceramics Disc Description:

 

Diameter :7.4mm
Thickness:1.3mm
Material: pzt4


Standard Size of Piezo Ceramic Discs:


range of piezo disc to produce:

Diameter: 2mm-120mm
Thickness:0.1mm-30mm


Typical value of "Hard" PZT materials performance:

 

Hard" PZT materials



PZT-41

PZT-42

PZT-43/4D

PZT-82

PBaS-4

Dielectric Constant

ɛTr3


1050

1250

1420

1100

1900









Coupling factor 

KP


0.58

0.58

0.58

0.52

0.59


K31


0.32

0.33

0.34

0.3

0.34


K33


0.66

0.67

0.68

0.57

0.68


Kt


0.48

0.48

0.48

0.4

0.49

Piezoelectric coefficient

d31

10-12m/v

-106

-124

-138

-100

-160


d33

10-12m/v

260

280

300

240

380


g31

10-3vm/n

-11.4

-11.2

-11

-10.3

-9.5


g33

10-3vm/n

28

25.3

24

25

22.6

Frequency coefficients

Np


2280

2200

2160

2280

2200


N1


1671

1613

1583

1671

1613


N3


1950

1900

1875

1950

1850


Nt


2250

2200

2200

2300

2200

Elastic compliance coefficient

Se11

10-12m2/n

11.8

12.7

13.2

11.6

13.2

Machanical quality factor

Qm


1000

800

600

1200

2200









Dielectric loss factor

Tg δ

%

0.3

0.4

0.5

0.3

0.5

Density

ρ

g/cm3

7.5

7.5

7.5

7.6

7.5

Curie Temperature

Tc

°C

320

320

320

310

310

Young's modulus

YE11

<109N/m3

85

79

76

86

76

Poison Ratio



0.3

0.3

0.3

0.3

0.33



The Range of Piezo Ceramics:


Geometry

Size (mm)

Tolerance

Discs

Diameter:   3 to 200

 

 

 

 

Tolerance according to the piezoelectric elements Industrial standard. 

Thickness:  0.2-25

Tubes

Length:    1-100

OD:       6-180

ID:        5-150

Wall:      0.5-15

Plates

Length:     1-200

Width:      1-200

Thickness:  0.2-25

Sphere

OD:        6-160

ID:         4-150

Wall:       1-10

Rings

OD:        3-180

ID:         1-150

Thickness :  0.2-25

For All Sizes

Flatness

±  0.03

Concentricity

±  0.10

Perpendicularity

±  0.10

Parallelism

±  0.05


Nominal Electric Tolerances

Piezoelectric Properties

± 5%

Relative Dielectric Constant

± 15%



Distance Sensors Applications with Piezo-ceramic Components


A PZT material piezo disc sends a short ultrasonic air wave in the direction of the object whose distance is to be measured. The sound wave is reflected by this object and received again by the same piezo-ceramic part. The piezo-ceramic part operates here as sender and receiver (time multiplex mode). The piezo ceramic disc normally has an adaption layer on the radiating side to match the acoustic impedance of the transducer to that of the air. This piezoelectric disk for distance sensors application can be used for a variety of purposes in industrial automation, for example, for distance measurement, as a limit monitor or as a counter (an object is registered every time it passes through the measuring range). If the wavelength is shorter than the transducer, it is radiated straight (in a close angle). Directed radiation is desired in almost all cases.The distances that can reasonably be measured using these systems are between 0.25 m and 10 m. The frequency used by the transducer (resonance mode) here depends on the desired range and the resolution. The higher the frequency, the higher the resolution and the shorter the range, and vice versa. If the wavelength resulting from the frequency is large in comparison to the size of the transducer, the result is a spherical-shaped radiation of the wave front.



Distance Measurement Sensors and Distance Sensors Image



Distance Measurement Sensors and Distance Sensors Image


Piezo Hannas (WuHan) Tech Co,.Ltd  is a professional piezoelectric ceramics and ultrasonic transducer manufacturer, dedicated to ultrasonic technology and industrial applications.                                    
 

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CONTACT US

Add: No.456 Wu Luo Road, Wuchang District, Wuhan City, HuBei Province, China.
E-mail: sales@piezohannas.com
Tel: +86 27 84898868
Phone: +86 +18986196674         
QQ: 1553242848 
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