P8 High Efficiency Piezo Ceramic Element for Making Ultrasonic
Equipment
Piezoelectric Ceramic
When the voltage is applied to the piezoelectric ceramics, the
mechanical deformation will occur with the change of the voltage
and frequency. On the other hand, when vibrating piezoelectric
ceramics, will produce a charge. According to this principle, when
the vibrator is composed of two piezoelectric ceramic or a form of
piezoelectric ceramic and a metal sheet, called bimorph element,
applying a signal, it will emit ultrasonic vibration due to
bending. In contrast, when an ultrasonic vibration is applied to
the bimorph element, an electrical signal is generated. Based on
the above, the piezoelectric ceramics can be used as ultrasonic
sensors.
The piezoelectric ceramic wafer is electrical devices with a simple
structure and light, with high sensitivity, no magnetic field
spread without spillover, copper wire and magnets, low power
consumption, less cost, easy mass production and the advantages of
widely used. Suitable for ultrasonic and acoustic wave transmitting
and receiving, piezoelectric ceramics is relatively large area and
can also be used to detect pressure and vibration. The working
principle is to use the reversible piezoelectric effect, applied
voltage in the audio, and voice.
Descriptio Piezoelectric Ceramic:
◊ High efficiency: high mechanical parameter Q, the transduction
efficient between electricity and sound above 95%.
◊ High amplitude: the transducer strength is improved by fixing the
high speed vibrator directly on the base of washing groove with
bolt. Compare with a magnetic expansion vibrator, its amplitude can
be improved above 50%.
◊ Good heat resistance: a large range of working temperature, low
resonance impedance and heat productivity.
◊ Good construction: fastened by bolt, easy for assembling, high
reliability.
Applications Piezoelectric Ceramic:
widely used in all kinds of ultrasonic sensor.ultrasonic
transducer.Medical,ultrasonic detectors and so on
Specifications Piezoelectric Ceramic:
Dimensions (mm) | Capacity C (pF) | Weak field dissipation Tgδ (12v) | Strong field dissipation Tg δ (400v) | Radial frequency Fr(KHz) | Resonance impedance Zm (∩ ) | Thick frequency Ft (KHz) | Coupling modulus Kr (%) | Quality factor Qm |
Φ35*Φ15*5 | 1430±10% | ≤0.5% | ≤1.0% | 45.5±5% | ≤15 | 410 | ≥45 | ≥800 |
Competitive Advantage Piezoelectric Ceramic:
◊ High efficiency
◊ High amplitude:
◊ Good heat resistance
◊ Good construction:
