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200 KHz Piezoelectric Disc Crystal for Echosounder Transducer

- Piezo Material: PCrN-4
- Dimensions: Φ50× 10mm
- Resonant Frequency: 200KHZ
- Applications: Fish finding echo sounders

Quantity:
  • PZ1000K060
  • Piezohannas
  • PZ1000K060

               200 KHz Piezoelectric Disc Crystal for Echosounder Transducer


WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers and some other ultrasonic deivce 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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ceramic disc manufacturers


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piezo disk echosounder



31AFB9AEF0A775B05FBF843CEB753E4E.jpg   capacitive piezo disc


Piezo Ceramics Disc Description:

 

- Piezo Material:  PCrN-4
- Dimensions: Φ50× 10mm
- Resonant Frequency: 200KHZ
- Applications: Fish finding echo sounders


Standard Size of Piezo Discs:


range of piezo disc to produce:

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




PZT Material:

 

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

 


How Does a Echosounder Transducer Work?


The easiest way to understand how a echosounder transducer functions is to think of it as a speaker and a microphone built into one unit. A echosounder transducer receives sequences of high voltage electrical pulses called transmit pulses from the echosounder. Just like the stereo speakers at home, the transducer then converts the transmit pulses into sound. The sound travels through the water as pressure waves. When a wave strikes an object like a weed, a rock, a fish, or the bottom, the wave bounces back. The wave is said to echo—just as your voice will echo off a canyon wall. When the wave of sound bounces back, the transducer acts as a microphone. It receives the sound wave during the time between each transmit pulse and converts it back into electrical energy. A transducer will spend about 1% of its time transmitting and 99% of its time quietly listening for echoes. Remember, however, that these periods of time are measured in microseconds, so the time between pulses is very short. The echosounder can calculate the time difference between a transmit pulse and the return echo and then display this information on the screen in a way that can be easily understood by the user.




Application Image:


200 KHz Piezoelectric Disc Crystal for Echosounder Transducer





 


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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Add: No.456 Wu Luo Road, Wuchang District, Wuhan City, HuBei Province, China.
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