CN109084889A - A kind of vibration signal detection method - Google Patents
A kind of vibration signal detection method Download PDFInfo
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- CN109084889A CN109084889A CN201811002716.XA CN201811002716A CN109084889A CN 109084889 A CN109084889 A CN 109084889A CN 201811002716 A CN201811002716 A CN 201811002716A CN 109084889 A CN109084889 A CN 109084889A
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- vibration signal
- vibration
- generating assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of vibration signal detection method, vibration signal detection device includes vibration generating assembly, vibration signal detection part, vibration signal processing part；Vibration signal detection part includes signal conditioner and at least two vibrating sensors；Vibration signal processing part includes Agilent acquisition system and vibration signal processing system；It vibrates generating assembly and generates vibration signal, vibrating sensor pastes on vibration generating assembly, and vibrating sensor, signal conditioner, Agilent acquisition system, vibration signal processing system successively connect；The vibration signal that vibrating sensor obtains carries out difference processing by vibration signal processing part to eliminate influence of the extraneous vibration signal to vibration generating assembly, and the vibration signal after eliminating the effects of the act is shown eventually by the mode of rumble spectrum figure.Testing result of the present invention is accurate, and can intuitively show detection case, belongs to Vibration Signal Detection field.
Description
Technical field
The present invention relates to Vibration Signal Detections, and in particular to a kind of vibration signal detection method.
Background technique
Oscillation phenomenon is widely present in the production of nature and the mankind, in life.Greatly to universe, as low as atomic particle, nothing
There is no vibrations.In mechanical industry, most oscillation phenomenons are considered as negative factor, there is unfavorable shadow to mechanical equipment
It rings.For example, the function that vibration will affect equipment even results in equipment malfunction for precision instrument and equipment；For process equipment, vibration
It is dynamic to reduce machining accuracy and finish, and aggravate the fatigue and abrasion of component, so as to shorten the use longevity of machine and works
Life；For large scale equipment facility, vibration is also possible to cause the large deformation of structure to destroy, and some bridges once collapsed because of vibration；More
Have notably, the flutter of aircraft wing, the buffeting of wheel can make the carrier strip part that multiplies of car and boat and cabin become badly, to will also result in sometimes
Accident even casualties；Strong vibration noise will form serious public hazards, therefore for the detection of vibration signal to pass
It is important.
When the prior art measures vibration signal, it is difficult to eliminate extraneous vibration signal, therefore influence measurement result.Meanwhile it shaking
Dynamic signal is exported in the form of rumble spectrum figure, as a result not intuitive enough.
Summary of the invention
For the technical problems in the prior art, it is accurate, intuitive that the object of the present invention is to provide a kind of testing results
Vibration signal detection method.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of vibration signal detection method, using vibration signal detection device；Vibration signal detection device includes vibration hair
Raw component, vibration signal detection part, vibration signal processing part；Vibration signal detection part includes signal conditioner and at least
Two vibrating sensors；Vibration signal processing part includes Agilent acquisition system and vibration signal processing system；Vibration occurs
Component generates vibration signal, and vibrating sensor is pasted on vibration generating assembly by conducting resinl, and vibrating sensor passes through conducting wire
It accesses in the input channel of signal conditioner, the output channel of signal conditioner connects the defeated of Agilent acquisition system by conducting wire
Enter channel, the output channel of Agilent acquisition system accesses vibration signal processing system by acquisition data line；Vibrating sensor
The vibration signal of acquisition carries out difference processing by vibration signal processing part to eliminate extraneous vibration signal to vibration generation group
The influence of part, the vibration signal after eliminating the effects of the act are shown eventually by the mode of rumble spectrum figure.
As a preference, the quantity of vibrating sensor is two, it is most strong that one of them is sticked to vibration generating assembly vibration
Position, another is sticked to the position to be measured of vibration generating assembly.The position that vibrating sensor is pasted, one of them is pasted onto vibration
It is the vibration interference in order to eliminate detected part that generating assembly, which vibrates strongest place, and another vibrating sensor is pasted
Position be the position to be detected, so, when two kinds of signals carry out difference processing, just eliminate vibration well
Strongest interference, convenient for the processing of follow-up data.
As a preference, vibration signal detection device is before actual use, need first to vibrate at this time in laboratory test
Generating assembly selects detection components, and detection components generate vibration signal after connecing power supply.
As a preference, vibrating sensor is pasted on vibration generating assembly by conductive silver glue.
As a preference, the signal that signal conditioner measures vibrating sensor is improved, amplified, is filtered,
To eliminate error, then signal reaches Agilent acquisition system by treated.
As a preference, obtaining rumble spectrum figure after vibration signal is handled by vibration signal processing system.
It handles as a preference, measuring signal to two vibrating sensors using difference method, on the one hand eliminates
On the other hand it is intuitive to measure signal by two vibrating sensors of comparison for influence of the extraneous vibration signal to vibration generating assembly
Judge to vibrate generating assembly with the presence or absence of mechanical breakdown.When seeing some very high filament on the longitudinal axis on Fig. 3, display
That a part of detection is just faulty.
As a preference, two vibrating sensors pass through two blue conducting wires access signal conditioners respectively two are defeated
Enter channel, two output channels of signal conditioner pass through two black conducting wires connection Agilent acquisition systems respectively two are defeated
Enter channel.
Generally speaking, the present invention has the advantage that
Detection part is selected in the experimental stage 1. vibrating generating assembly, is powered on by detection part, vibration, hair are generated
A vibration signal out finally obtains rumble spectrum figure then by vibration signal detection part and vibration signal processing part,
It can intuitively find out very much Vibration Condition.
2. vibration signal detection part acquires vibration signals by 2 vibrating sensors, by vibration signal processing part into
The method of row difference can preferably eliminate influence of the extraneous vibration signal to vibration generating assembly vibration.
3. vibration signal is connected by signal conditioner in vibration signal detection part, vibration signal can be adjusted
The processing such as reason, amplification, filtering, reduce follow-up work amount, while obtaining rumble spectrum figure can be simply very much.
4. by vibration signal processing part, what can be apparent finds out rumble spectrum figure, intuitive and accurately display vibration
Emotionally condition.
5. rumble spectrum figure can be obtained, while having carried out difference processing, more intuitively find out vibration generating assembly (or vibration
Some position in generating assembly) the case where vibrating in varied situations.
Detailed description of the invention
Fig. 1 is the schematic diagram of vibration signal detection device.
Fig. 2 is spectrogram of the detection components in normal work.
Fig. 3 is the spectrogram that detection components work in case of wear.
Wherein, 1 is detection components, and 2 be vibrating sensor, and 3 be signal conditioner, and 4 be Agilent acquisition system, and 5 be vibration
Dynamic signal processing system, 101 be vibration generating assembly, and 102 be vibration signal detection part, and 103 be vibration signal processing part,
601 be blue conducting wire, and 602 be blue conducting wire, and 603 be black conducting wire, and 604 be black conducting wire, and 605 be acquisition data line.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail.
A kind of vibration signal detection method, using vibration signal detection device.
Vibration signal detection device includes vibration generating assembly, vibration signal detection part, vibration signal processing part.?
In laboratory, vibration generating assembly selects detection components, can produce vibration signal after accessing power supply.Vibration signal detection part
Including signal conditioner and two vibrating sensors.Vibration signal processing part includes at Agilent acquisition system and vibration signal
Reason system.It vibrating generating assembly and generates vibration signal, vibrating sensor is pasted on vibration generating assembly by conductive silver glue, and two
A vibrating sensor passes through two input channels of two blue conducting wires access signal conditioners respectively, and two of signal conditioner
Output channel passes through two input channels of two black conducting wire connection Agilent acquisition systems respectively, Agilent acquisition system
Output channel accesses vibration signal processing system by acquisition data line.In two vibrating sensors, one of them is sticked to vibration
Generating assembly vibrates most strong position, another is sticked to the position to be measured of vibration generating assembly.
In the present embodiment, detection components can produce vibration, and oscillation intensity and vibration position are adjustable；Vibrating sensor, which is selected, to be added
Velocity sensor；The effect of signal conditioner is conditioning, amplification, filtering processing；The effect of Agilent acquisition system is to collect number
According to；The effect of vibration signal processing system is to handle the data of subsequent acquisition, then carries out processing and obtains more intuitive image.
A kind of vibration signal detection method powers on generation vibration signal, vibrating sensor acquisition by detection components
Vibration signal, then signal conditioner such as is improved vibration signal, is amplified, being filtered at the processing, then passes through Agilent acquisition
System and vibration signal processing system carry out signal processing, obtain rumble spectrum figure using the method for difference.Difference processing simultaneously
Method can eliminate some interference of a part of extraneous vibration to detection components.
This experiment is with JBYD-HT-3700A currency counting and detecting machine for vibration generating assembly, due to the vibration of this experiment currency counting and detecting machine
Dynamic most strong part motor over there, therefore the adhesive portion of one vibrating sensor of this experiment motor over there.By obtaining Fig. 2
Can be with comparative analysis with Fig. 3, whether detected that a part of vibration generating assembly breaks down.In Fig. 2 and Fig. 3, far from motor
Point is that a part that vibrating sensor will detect vibration generating assembly, and is that vibration generating assembly vibrates close to motor point
That strongest a part.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of vibration signal detection method, it is characterised in that: use vibration signal detection device；Vibration signal detection device packet
Include vibration generating assembly, vibration signal detection part, vibration signal processing part；Vibration signal detection part includes signal condition
Device and at least two vibrating sensors；Vibration signal processing part includes Agilent acquisition system and vibration signal processing system；
It vibrates generating assembly and generates vibration signal, vibrating sensor is pasted on vibration generating assembly by conducting resinl, vibrating sensor
It is accessed by conducting wire in the input channel of signal conditioner, the output channel of signal conditioner connects Agilent acquisition by conducting wire
The output channel of the input channel of system, Agilent acquisition system accesses vibration signal processing system by acquisition data line；Vibration
The vibration signal that dynamic sensor obtains carries out difference processing by vibration signal processing part to eliminate extraneous vibration signal to vibration
The influence of dynamic generating assembly, the vibration signal after eliminating the effects of the act are shown eventually by the mode of rumble spectrum figure.
2. a kind of vibration signal detection method described in accordance with the claim 1, it is characterised in that: the quantity of vibrating sensor is two
A, one of them is sticked to vibration generating assembly vibration most strong position, another is sticked to the position to be measured of vibration generating assembly.
3. a kind of vibration signal detection method described in accordance with the claim 1, it is characterised in that: vibration signal detection device is in reality
Border is before use, need first in laboratory test, vibration generating assembly selects detection components at this time, and detection components generate after connecing power supply
Vibration signal.
4. a kind of vibration signal detection method described in accordance with the claim 1, it is characterised in that: vibrating sensor passes through conductive silver
Gluing is attached on vibration generating assembly.
5. a kind of vibration signal detection method described in accordance with the claim 1, it is characterised in that: signal conditioner is by vibrating sensing
The signal that device measures is improved, is amplified, is filtered, and to eliminate error, then signal reaches Agilent acquisition by treated
System.
6. a kind of vibration signal detection method described in accordance with the claim 1, it is characterised in that: vibration signal passes through vibration signal
After processing system processing, rumble spectrum figure is obtained.
7. a kind of vibration signal detection method according to claim 2, it is characterised in that: shaken using difference method to two
Dynamic sensor measures signal and is handled, and on the one hand eliminates influence of the extraneous vibration signal to vibration generating assembly, on the other hand
Signal, which is measured, by two vibrating sensors of comparison intuitively judges to vibrate generating assembly with the presence or absence of mechanical breakdown.
8. a kind of vibration signal detection method according to claim 2, it is characterised in that: two vibrating sensors lead to respectively
Two input channels of two blue conducting wire access signal conditioners are crossed, two output channels of signal conditioner pass through two respectively
Two input channels of root black conducting wire connection Agilent acquisition system.
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| CN201811002716.XA CN109084889B (en) | 2018-08-30 | 2018-08-30 | Vibration signal detection method |
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| CN201811002716.XA CN109084889B (en) | 2018-08-30 | 2018-08-30 | Vibration signal detection method |
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| US5317394A (en) * | 1992-04-30 | 1994-05-31 | Westinghouse Electric Corp. | Distributed aperture imaging and tracking system |
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| CN105004662A (en) * | 2015-07-08 | 2015-10-28 | 中国科学院力学研究所 | Method for testing contact rigidity of rock discontinuity structural plane, and apparatus thereof |
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| CN206248204U (en) * | 2016-11-24 | 2017-06-13 | 广西电网有限责任公司贺州供电局 | Transportable transformer vibration characteristic signals detection means |
| CN107233108A (en) * | 2017-07-17 | 2017-10-10 | 清华大学深圳研究生院 | A kind of wearable sticker of acquisition volume message number |
| CN108015879A (en) * | 2017-12-08 | 2018-05-11 | 武汉市华力机械铸造有限公司 | A kind of Internet of Things intelligent counterweight block shaking platform and its control method |
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2018
- 2018-08-30 CN CN201811002716.XA patent/CN109084889B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317394A (en) * | 1992-04-30 | 1994-05-31 | Westinghouse Electric Corp. | Distributed aperture imaging and tracking system |
| CN103063954A (en) * | 2012-12-26 | 2013-04-24 | 山东电力集团公司菏泽供电公司 | Multi-sensor array monitoring system on states of power equipment |
| CN105004662A (en) * | 2015-07-08 | 2015-10-28 | 中国科学院力学研究所 | Method for testing contact rigidity of rock discontinuity structural plane, and apparatus thereof |
| CN105606360A (en) * | 2015-11-24 | 2016-05-25 | 国网内蒙古东部电力有限公司电力科学研究院 | Fault diagnosis method for condition-variable planetary gear box based on multi-sensor information fusion |
| CN206248204U (en) * | 2016-11-24 | 2017-06-13 | 广西电网有限责任公司贺州供电局 | Transportable transformer vibration characteristic signals detection means |
| CN107233108A (en) * | 2017-07-17 | 2017-10-10 | 清华大学深圳研究生院 | A kind of wearable sticker of acquisition volume message number |
| CN108015879A (en) * | 2017-12-08 | 2018-05-11 | 武汉市华力机械铸造有限公司 | A kind of Internet of Things intelligent counterweight block shaking platform and its control method |
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