70khz ultrasonic transducer for ultrasonic vibration transducer

Comparison of different piezoelectric ceramic transducers

 

1.1 comparison of piezoelectric ceramics:

 

1.1.1 Yellow wafer is P8 series high-power piezoelectric ceramics. It has the advantages of low calorific value, low field loss and good thermal stability. It is generally suitable for high-power ultrasonic emission, such as ultrasonic welding and high-power cleaning.

 

1.1.2 Black wafers are P4 series piezoelectric ceramics with high dielectric constant, high electromechanical coupling coefficient and other advantages. They are generally suitable for medium power ultrasonic applications, such as cleaning or receiving transducers. Compared with the traditional P4 series, the black wafer adopted by our company has the advantages of high thermal stability, high Curie temperature (Tc = 340 C) and high mechanical and electrical quality.

 

1.2 comparison of different materials assembled into transducers:

 

1.2.1 The transducer assembled on yellow wafer has low absolute value of capacitance change and low loss of high field, so it has low heat output and stable driving compared with the same driving circuit. The water spray displays a stable and large impact on the cleaning load, which is a regular pattern.

 

The transducer with 1.2.2 black wafer has high electro-acoustic conversion efficiency due to its high electro-mechanical coupling coefficient and high Curie temperature. It has higher stability and higher temperature resistance than other products of general P4 series. The water spray is characterized by high water column and rich hand feel, but high sensitivity to cleaning load.

 

1.2.3 Use occasions (Suggestions): High frequency (such as 40K above) or low power transducer (below 60W) using black chip assembly transducer, low frequency or high power transducer using yellow chip assembly transducer.

Type	Length（mm）	Weight（g）	Frequency（KHz）	Resonance Impedance （Ω）	Static Capacity （pF）±10%	Input Power（W）
UCE-UT-20100 PZT-8	94	900	20	10-20	5200	100
UCE-UT-25100 PZT-4	77	710	25	10-20	6600	100
UCE-UT-28120 PZT-4	66	720	28	10-20	7800	120
UCE-UT-28100 PZT-8	66	625	28	10-20	5200	100
UCE-UT-28100 PZT-4	66	624	28	10-20	6600	100
UCE-UT-30100 PZT-8	61	555	30	10-20	5200	100
UCE-UT-2560 PZT-4	77	530	25	10-20	5400	60
UCE-UT-2860 PZT-8	68	470	28	10-20	3800	60
UCE-UT-2850 PZT-4	82	425	28	10-20	4100	50
UCE-UT-3360 PZT-8	58	420	33	10-20	3800	60
UCE-UT-4060 PZT-8	55	300	40	10-20	3800	60
UCE-UT-4060 PZT-4	56	310	40	10-20	5400	60
UCE-UT-4050 PZT-4	54	260	40	10-20	4100	50
UCE-UT-4050-1 PZT-4	57	300	40	10-20	4100	50
UCE-UT-5435 PZT-4	36	135	54	10-20	3200	35
UCE-UT-6860 PZT-8	80	460	68	10-20	3800	60
UCE-UT-68120 PZT-4	67	588	68	10-20	7800	120
UCE-UT-8060 PZT-4	60	325	80	10-20	5400	60
UCE-UT-12060 PZT-4	56	260	120	10-20	5400	60
UCE-UT-13550 PZT-4	54	215	135	10-20	4200	50