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Ultrasonic transducer with micro-broadband power adapting to frequency drift

An ultrasonic transducer, frequency drift technology, applied in the direction of the fluid using vibration, etc., can solve the problem that the output power and amplitude cannot be guaranteed, and achieve obvious effects and avoid the effect of amplitude attenuation

Active Publication Date: 2020-06-26
太原德尔瑞机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] In order to solve the technical problem that the frequency of the current ultrasonic transducer drifts with the change of external conditions so that the output power and amplitude cannot be guaranteed, the present invention provides a micro-broadband power ultrasonic transducer adaptable to frequency drift

Method used

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  • Ultrasonic transducer with micro-broadband power adapting to frequency drift
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  • Ultrasonic transducer with micro-broadband power adapting to frequency drift

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Embodiment Construction

[0056] The rear cover 1 , the first group of piezoelectric ceramic crystal piles 2 , the middle cylinder 3 , the second group of piezoelectric ceramic crystal piles 4 and the front cover 5 are connected together by pretightening studs and nuts 7 . Wherein the thread of one end of the pretightening stud screwed into the front cover plate 5 is completely screwed in according to the standard, and the other end is connected with the nut;

[0057] The ceramic sheets and copper electrode sheets in the first group of piezoelectric ceramic crystal stacks 2 are connected by vacuum cold pressure welding, and then enter the assembly of the transducer;

[0058] The ceramic sheets and copper electrode sheets in the second group of piezoelectric ceramic crystal stacks 4 are connected through vacuum cold pressure welding, and then enter the assembly of the transducer;

[0059] The copper electrodes in the first group of piezoelectric ceramic crystal stacks 2 are connected to the low-frequenc...

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Abstract

The invention relates to the technical field of ultrasonic transducers, in particular to a micro wideband power ultrasonic transducer adapting to frequency variation. The micro wideband power ultrasonic transducer solves the technical problem that variation of frequency of a current ultrasonic transducer occurs along with changing of outside conditions, and thus output power and amplitude cannot be ensured. A rear cover plate, a first piezoelectric ceramic crystal pile, a middle cylinder, a second piezoelectric ceramic crystal pile and a front cover plate are connected together through pre-tightening force studs and nuts. The two piezoelectric ceramic crystal piles are designed in a series-connection manner. The two piezoelectric ceramic crystal piles are connected with frequency sources with frequency values being close but different. According to the ultrasonic transducer, different kinds of frequency are input into the two piezoelectric ceramic crystal piles, the frequency band of the transducer is widened, and output power and amplitude of the transducer are ensured. For amplitude attenuation caused by the frequency variation, on the premise of not influencing the output powerbasically, detuning caused by the frequency variation is avoided, and normal use of the transducer is ensured.

Description

technical field [0001] The invention relates to the technical field of ultrasonic transducers, in particular to a micro-broadband power ultrasonic transducer adaptable to frequency drift. Background technique [0002] Ultrasonic transducers are energy converters and the key to the entire vibration system. As the core device of ultrasonic technology, transducers can convert mechanical energy, electrical energy and acoustic energy to each other. The transducer converts the input high-frequency electrical energy into high-frequency vibration mechanical energy through the piezoelectric effect of the piezoelectric material, and generates ultrasonic waves. Due to the various beneficial interactions between ultrasound and substances, power ultrasound is widely used in ultrasonic cleaning, ultrasonic welding and various ultrasonic processing such as turning, grinding, drilling, finishing and other fields. Ultrasonic cleaning uses the effect of ultrasonic cavitation to quickly remov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/06
Inventor 邢秀琴高春强祝锡晶王建青崔学良
Owner 太原德尔瑞机械有限公司
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