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Method and apparatus for detection of broken piezoelectric material of ultrasonic transducer

A piezoelectric material and ultrasonic technology, which is used in material analysis using sonic/ultrasonic/infrasonic waves, using electrical devices, and measuring ultrasonic/sonic/infrasonic waves, etc., can solve the efficiency and gain loss of ultrasonic transducers, and affect the ultrasonic process question

Inactive Publication Date: 2018-05-11
BRANSON ULTRASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in a loss of efficiency and gain of the ultrasonic transducer which will adversely affect the ultrasonic process

Method used

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  • Method and apparatus for detection of broken piezoelectric material of ultrasonic transducer
  • Method and apparatus for detection of broken piezoelectric material of ultrasonic transducer
  • Method and apparatus for detection of broken piezoelectric material of ultrasonic transducer

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Embodiment Construction

[0017] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0018] The following will refer to figure 1 The ultrasonic device 100 of the present invention is discussed, but it should be understood that the following applies to any ultrasonic device having an ultrasonic assembly powered by a power source. In this regard, it should be appreciated that the method of detecting the piezoelectric material of the ultrasonic transducer 106 according to one aspect of the present disclosure as described below differs from methods used in prior art ultrasonic devices, and figure 1 and figure 2 A statement that it is prior art does not mean that the methods described below belong to the prior art.

[0019] According to one aspect of the present disclosure, measuring the piezoelectric coupling coefficient K z To determine whether the piezoelectric material of the ultrasonic transducer 106 is broken. As is known in the art, the piezoelectr...

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Abstract

The invention discloses a method and apparatus for detection of a broken piezoelectric material of an ultrasonic transducer. A broken piezoelectric material in an ultrasonic transducer of an ultrasonic stack of an ultrasonic device is detected by measuring a test piezoelectric coupling constant with a test scan of the ultrasonic stack. The test piezoelectric coupling constant is compared to a previously measured baseline piezoelectric coupling constant. The piezoelectric material is determined to be broken when the test piezoelectric coupling constant is less than the baseline piezo coupling constant by more than a predetermined amount.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 416,418, filed November 2, 2016. The entire disclosure of the above application is incorporated herein by reference. technical field [0003] The present disclosure relates to ultrasonic devices having ultrasonic kits and, more particularly, to detecting breakage of piezoelectric materials of ultrasonic transducers of ultrasonic kits. Background technique [0004] This section provides background information related to the present disclosure which is not necessarily prior art. [0005] Some ultrasonic devices have an ultrasonic stack that is powered by a power source that is often also used to control the ultrasonic device. Ultrasonic kits include the ultrasonic transducer and any components that are ultrasonically coupled to the ultrasonic transducer, typically horns and ultrasonic dies. Examples of such ultrasonic devices include ultrasonic...

Claims

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Application Information

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IPC IPC(8): G01N29/28
CPCG01N29/28G01N2291/028B06B3/00B06B2201/40G01H11/08
Inventor 斯科特·考德威尔
Owner BRANSON ULTRASONIC CORP
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