Piezoelectric Ceramic for Ultrasonic Flow Meter

In industry, there are piezoelectric ceramic elements in the geological detector, which can be used to judge the geological conditions of the strata and identify the underground mineral deposits. In addition, the voltage ceramic transformer in TV sets is smaller in size and lighter in weight. Its efficiency can reach 60% ～ 80%. It can withstand a high voltage of 30000 volts, keep the voltage stable, and completely eliminate the defect of fuzzy deformation of TV images. When the buzzer made of piezoelectric ceramic is installed in the belly of toy dog, the toy will make vivid and interesting sound. Application in automobile: a simple piezoelectric ceramic actuator is installed in the brake piston of the automobile, and the "shaking" frequency is applied to the support plate of the internal brake block, which can effectively suppress the vibration that produces sharp noise, so as to play a role in the case of temperature and humidity changes and normal wear of the brake system. Piezoelectric ceramics can also be used as knock sensors, ultrasonic sensors, acceleration sensors and so on. At present, the application of piezoelectric ceramics in fuel injector of automobile fuel system is in the most advanced development stage.

 

Piezoelectric materials can produce electric field due to mechanical deformation and mechanical deformation due to the action of electric field. This inherent mechanical electrical coupling effect makes piezoelectric materials widely used in engineering. For example, piezoelectric materials have been used to make intelligent structures. Such structures not only have self bearing capacity, but also have the functions of self diagnosis, self adaptability and self repair, which will play an important role in the future aircraft design.

Spec	Dimension (mm)	Thickness frequency (MHz)	Capacitance (pf)	Electromechanical coupling coefficient		Piezoelectric voltage coefficient d33	Courier temperature (℃)
				Kp	Kt
UCE-81-1	Φ8 × 1	2.0MHz±5%	530±10%	0.65	0.43	420×	350
UCE-81-2	Φ8 × 1	2.0MHz±5%	850±10%	0.64	0.44	520×	330
UCE-82	Φ8 × 2	1.0 MHz±5%	265±10%	0.65	0.43	420×	350
UCE-82-1	Φ8 × 2	1.0 MHz±5%	430±10%	0.64	0.44	520×	330
UCE-101	Φ10 × 1	2.0 MHz±5%	840±10%	0.65	0.44	420×	350
UCE-101-1	Φ10 × 1	2.0 MHz±5%	1350±10%	0.64	0.43	520×	330
UCE-102	Φ10 × 2	1.0 MHz±5%	420±10%	0.65	0.44	420×	350
UCE-102-1	Φ10 × 2	1.0 MHz±5%	680±10%	0.65	0.45	520×	330
UCE-151	Φ15 ×1	2.0 MHz±5%	1970±10%	0.65	0.43	420×	350
UCE-151-1	Φ15 × 1	2.0 MHz±5%	3200±10%	0.65	0.45	520×	330
UCE-152	Φ15 × 2	1.0 MHz±5%	980±10%	0.66	0.43	420×	350
UCE-152-1	Φ15 × 2	1.0 MHz±5%	1600±10%	0.65	0.45	520×	330
UCE-161	Φ16×1	2.0 MHz±5%	2200±10%	0.65	0.45	420×	350
UCE-161-1	Φ16×1	2.0 MHz±5%	3600±10%	0.65	0.45	520×	330
UCE-162	Φ16 × 2	1.0 MHz±5%	1850±10%	0.65	0.45	420×	330
UCE-162-1	Φ16 × 2	1.0 MHz±5%	1100±10%	0.65	0.45	420×	350
UCE-201	Φ20×1	2.0 MHz±5%	3560±10%	0.66	0.43	420×	350
UCE-201-1	Φ20×1	2.0 MHz±5%	5800±10%	0.65	0.45	400×	330
UCE-202	Φ20×2	1.0 MHz±5%	1780±10%	0.65	0.43	350×	350
UCE-202-1	Φ20×2	1.0 MHz±5%	2900±10%	0.65	0.45	400×	330
UCE-251	Φ25 × 1	2.0 MHz±5%	4600±10%	0.66	0.43	350×	350
UCE-251-1	Φ25 × 1	2.0 MHz±5%	7500±10%	0.65	0.45	400×	330
UCE-252	Φ25 × 2	1.0 MHz±5%	2300±10%	0.65	0.43	350×	350
UCE-252-1	Φ25 × 2	1.0 MHz±5%	3700±10%	0.65	0.45	400×	330
UCE-402	Φ40 × 2	1.0 MHz±5%	7200±10%	0.65	0.45	350×	350