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A beam vibration frequency identification system and method

A vibration frequency and identification system technology, applied in measuring devices, instruments, measuring ultrasonic/sonic/infrasonic waves, etc., can solve problems such as poor anti-electromagnetic interference ability, complex optical system, and high requirements on the surface optical performance of the object to be measured.

Active Publication Date: 2017-11-17
HUAINAN ZHONGXING MACHINERY MFG
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Problems solved by technology

Non-contact measurement mainly includes electromagnetic and optical measurement methods, both of which have obvious limitations, such as: the electromagnetic measurement method has poor anti-electromagnetic interference ability, and the sensor installation is more complicated; while the optical system of optical measurement It is more complicated, and has higher requirements on the optical performance of the surface of the measured object, etc.
And the existing methods are not suitable for online measurement

Method used

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  • A beam vibration frequency identification system and method
  • A beam vibration frequency identification system and method
  • A beam vibration frequency identification system and method

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Embodiment Construction

[0016] Such as figure 1 , 2 , 3, shown, a kind of vibration frequency identification system of beam, this identification system is made up of vibration frequency identification assembly (101), vibration frequency generation assembly (102), it is characterized in that: described vibration frequency identification assembly (101) It consists of a beam (1), a second piezoelectric ceramic sheet (3), an impedance analyzer (4), a conductive silver glue 2 (7), a red wire 1 (601), and a black wire 1 (602); the vibration The frequency generating component (102) consists of a beam (1), a first piezoelectric ceramic sheet (2), a signal generator (5), a conductive silver glue 1 (6), a black wire 2 (603), and a red wire 2 (604) Composition: the first piezoelectric ceramic sheet (2) is pasted on the beam (1) through the conductive silver glue 1 (6); the second piezoelectric ceramic piece (3) is pasted on the beam (1) through the conductive silver glue 2 (7) on; one end of the red wire 1 (6...

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Abstract

The invention discloses a novel beam vibrating frequency recognition system and method. The recognition system is composed of a vibrating frequency recognition assembly (101) and a vibrating frequency generating assembly (102), wherein the vibrating frequency generating assembly (102) can give out frequency signals of needed vibrating frequency on a beam (1), and vibrating signals with different frequencies can be given out by adjusting a signal generator (5); the vibrating frequency recognition assembly (101) can perform frequency sweeping in the 10-10100 Hz frequency band on a second piezoelectric ceramic chip (3) through an impedance analysis meter (4), the second piezoelectric ceramic chip (3) senses the vibrating signals in the frequency sweeping process, the piezoelectric impedance values of the impedance analysis meter (4) have the characteristic similar to same-frequency resonance, and the vibrating frequency signals which are transmitted by the medium beam (1) and given out by the vibrating frequency generating assembly (102) are found through graph changes of vibrating points in frequency sweeping.

Description

technical field [0001] The invention relates to the technical field of a beam vibration frequency identification system and method. Background technique [0002] Vibration phenomena widely exist in nature and human production and life. The significance and importance of the measurement of vibration parameters, especially the measurement of vibration frequency, is self-evident. Therefore, various methods and instruments for measuring vibration frequency have been invented. In summary, it can be divided into two categories: contact measurement and non-contact measurement. The measurement of the contact vibration frequency is based on the measurement of the acceleration of the vibrating object, and the sensor needs to be pasted on the vibrating object. Non-contact measurement mainly includes electromagnetic and optical measurement methods, both of which have obvious limitations, such as: the electromagnetic measurement method has poor anti-electromagnetic interference abilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H11/08
Inventor 张军汤红梅李宪华吴勇黄杰郭榜增张泽宇冯智冲
Owner HUAINAN ZHONGXING MACHINERY MFG
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