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Beijing Cheng-cheng Weiye Ultrasonic Science & Technology Co.,Ltd
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Curling Edge Piezoelectric Ceramic Discs Ceramic Round Plate Positive And Negative Poles

Beijing Cheng-cheng Weiye Ultrasonic Science & Technology Co.,Ltd
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Curling Edge Piezoelectric Ceramic Discs Ceramic Round Plate Positive And Negative Poles

Brand Name : CCWY

Certification : RoSH

Place of Origin : cn

MOQ : 20~50

Supply Ability : 1000PCS +per Month

Delivery Time : 30 days

Packaging Details : normal packing

product name : Ultrasonic Piezoelectric Ceramic

use : Making Vibration Sensor

Dimension(mm) : Φ25xΦ10x4

Capacity C (pF) : 935±10%

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Curling Edge Piezoelectric Ceramic Round Plate Positive and Negative poles



Piezoelectric ceramic materials are electromechanical transducers: They can convert mechanical energy into electrical energy and vice-versa. Piezoelectric ceramic material from us are used in sensors, actuators, gas ignition and in power transducers for high-power ultrasonic applications.



Piezoelectric ceramic Material are used to convert mechanical parameters, such as pressure and acceleration, into electrical parameters or, conversely, to convert electrical signals into mechanical movement or vibration.

In sensors they make it possible to convert forces, pressures and accelerations into electrical signals, and in sonic and ultrasonic transducers to convert electric voltages into vibrations or deformations.

Dimension(mm)Capacity C (pF)

Weak
Field
Dissipatio
Tgδ (12v)

Strong
Field
Dissip
ationTg δ
(400v)

Radial
Frequency
Fr(KHz)

Reso
nance
Impedance
Zm (Ω )

Thick FrequencyFt (KHz)Coupling Modulus Kr (%)Quality Factor Qm
Φ10xΦ5x2240±10%≤0.5%≤1.0%153±5%≤151020≥45≥800
Φ16xΦ8x4340±10%≤0.5%≤1.0%95.8±5%≤20512≥45≥800
Φ25xΦ10x4935±10%≤0.5%≤1.0%65.5±5%≤15512≥45≥800
Φ30xΦ10x51150±10%≤0.5%≤1.0%58.4±5%≤15410≥45≥800
Φ32xΦ15x51080±10%≤0.5%≤1.0%49.2±5%≤15410≥45≥800
Φ35xΦ15x51430±10%≤0.5%≤1.0%45.5±5%≤15410≥45≥800
Φ38xΦ15x51750±10%≤0.5%≤1.0%43.4±5%≤15410≥46≥800
Φ40xΦ15x51970±10%≤0.5%≤1.0%42.8±5%≤15410≥45≥800
Φ42xΦ15x52200±10%≤0.5%≤1.0%40±5%≤15410≥45≥800
Φ42xΦ17x52110±10%≤0.5%≤1.0%38.8±5%≤15410≥45≥800
Φ45xΦ15x52580±10%≤0.5%≤1.0%38.1±5%≤15410≥46≥800
Φ50xΦ17x53160±10%≤0.5%≤1.0%34.8±5%≤15410≥45≥800
Φ50xΦ17x62430±10%≤0.5%≤1.0%34.8±5%≤15315≥45≥800
Φ50x35800±10%≤0.5%≤1.0%46±5%≤10681≥50≥800

FRQ

PHYSICS ANSWERS

1. Reason to the existence of piezoelectricity?
The essential unit which is a rhomboid or cubic shaped cage made up of atoms exists in some atomic lattice structures. Inside the cell, the cage is responsible for holding single semi-mobile ion that has numerous quantum position states. By applying electric field or by distorting the cage (applied strain), the ions post state will consequently shift. The basis or transformation to internal electric field shifts from mechanical strain is provided by coupling between the cage and central ion.

2. How can poling and depoling in piezoceramic materials? Be explained?
The piezoceramics should undergo high electric field for a sometime for the alignment of randomly oriented micro-dipoles in their proper formulation since the chemical composition is not simply responsible for the piezoelectric property of ceramics. This is called “poling” due to alignment resulted from application of high voltage. a “dislodging stress” is exerted on the micro-dipoles due to the application of electric field in the opposite direction if tried. There is only temporary change in polarization if low level field are applied since it bounces back on removal. There is also partly degradation of the polarization along with partial loss of properties when medium fields are applied. Polarization in opposite direction will be resulted if high fields are applied.

3. Is there a possibility of using piezoceramic actuators at cryogenic temperatures?
The answer is yes. From down to zero degrees Kelvin, allpiezo actuators continue to function even though it may appear counter-intuitive. Since electric fields cannot be changed by temperature at all and the inter-atomic electric fields are the basis for the piezoelectric effect, the most common piezoceramics does decrease due to piezo coupling as temperature drops. Most importantly the motion of most materials drops to about one-seventh of that measured at room at liquid helium temperatures.





Company introduction:
Established in 1999, Beijing Cheng-cheng Weiye Science and Technology Co., Ltd is a professional manufacturer in ultrasonic transducers, ultrasonic equipment and piezoelectric ceramics.
Notably in 2004, we researched and developed our ultrasonic tubular transducer equipment into a new product that turns the extreme inconvenience brought about by pipeline and vacuum cleaning into an easy task. This product has been widely used in distillation, mix and mill for various chemical procedures and has received much praise from our customers.
Payment:
We accept paypal or T/T, western union etc.
Shipping:
Normally if your quantity is not too much, we ship out by Fedex express economy. Or as your requested by sea or other express, according to your quantity.
Certification: ø
CE, ISO9001, ROSH

















































Product Tags:

piezoelectric ceramics

      

piezoceramic ring

      
Wholesale Curling Edge Piezoelectric Ceramic Discs Ceramic Round Plate Positive And Negative Poles from china suppliers

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