Round Piezoelectric Ceramic Discs

Round Piezoelectric Ceramic Discs

Round Piezoelectric Ceramic Discs 30MM 45KHZ Round Piezoelectric Ceramic Discs Positive and Negative in the Opposit Side. Customized round piezoelectric ceramic discs Type: piezoelectric ceramic Use: for ultrasonic equipment Clear sound/high sound pressure MOQ: 100 pieces Main feature: Extremely...
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Product Details

Round Piezoelectric Ceramic Discs

30MM 45KHZ Round Piezoelectric Ceramic Discs Positive and Negative in the Opposit Side.

Diameter

(mm)

Thickness

(mm)

Frequency

(kHz)

Resistor

(Ω)

Capacity

(pF)

Dielectric loss-tgCoupling factor-kp
30345355000.30.58
30446339000.30.58

  • Customized round piezoelectric ceramic discs

  • Type: piezoelectric ceramic

  • Use: for ultrasonic equipment

  • Clear sound/high sound pressure

  • MOQ: 100 pieces

  • Main feature:

  • Extremely thin and light

  • Low power consumption

  • No EMI/RFI

  • Applications: (piezo ceramics element, piezo diaphragm, piezo plate)

  • For sound making: clocks, calculators, telephones, washing machines, various (burglar alarms and more)

  • For transduction: embryo monitor, heart reflectoscope reflector, pedometer, car alarm sensor

  • Brief description of piezo ceramic element and attributive characteristics

  • Electrode form/modulating: external drive (diode); self drive (transistor)

  • Thickness: thick (T>0.5mm); standard (0.5mm>T>0.2mm); thin (T<0.2mm); thinnest (0.03-0.05um)

  • Dimensions: smallest diameter is 8mm, biggest is 65mm

  • Metal plate types: brass, nickel, stainless steel

  • Connection terminal: solder wire or not

  • There are the high power piezoelectric ceramics in disc shape above; the standard material is P-81

  • High-power material P-86, P-85; medium-power material P-41, P-43, P-45 and more other materials are optional

  • It is piezoelectric ceramics for transmitting; the piezoelectric ceramics for receiving can be same dimension as above

Effect of electric field on fracture of round piezoelectric ceramic Discs

Closed form solutions for all three modes of fracture for an infinite piezoelectric medium containing a center crack subjected to a combined mechanical and electrical loading were obtained. The explicit mechanical and electrical fields near the crack tip were derived, from which the strain energy release rate and the total potential energy release rate were obtained by using the crack closure integral. The suitability in using the stress intensity factor, the total energy release rate, or the mechanical strain energy release rate as the fracture criterion was discussed.


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