CN105865730A - Adaptive tuning vibration table and detection method - Google Patents
Adaptive tuning vibration table and detection method Download PDFInfo
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- CN105865730A CN105865730A CN201610177640.9A CN201610177640A CN105865730A CN 105865730 A CN105865730 A CN 105865730A CN 201610177640 A CN201610177640 A CN 201610177640A CN 105865730 A CN105865730 A CN 105865730A
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- under test
- vibration
- meters under
- control circuit
- circuit plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
Abstract
The invention discloses an adaptive tuning vibration table and a detection method, and belongs to the field of instrument detection. The invention solves a problem that a conventional instrument vibration platform cannot carry out the adaptive control of vibration frequency, and cannot monitor the vibration effect in real time. The vibration table can automatically adjust the vibration frequency of a vibration support, automatically adjusts and controls the vibration amplitude of a to-be-detected instrument, enables the vibration support and the to-be-detected instrument to resonate, and modulates a frequency for resonance, so as to achieve the maximization of the vibration amplitude of the instrument. The vibration table can impact the instrument in the maximum range, and the whole vibration process is monitored in real time. The method achieves the quantitative measurement of instrument parameters. The vibration table is mainly used for the detection of the to-be-detected instrument.
Description
Technical field
The invention belongs to instrument detection field.
Background technology
The vibration table volume of instrument detection at present is big, complicated, expensive, and the accuracy rate of check meter is low, existing instrument
Detection vibration table can realize the vibration to instrument, but to the amplitude vibrated, frequency of vibration, time of vibration, does not has quantitatively,
Vibration processes does not control simultaneously, it is impossible to the effect of monitoring vibration in real time.
Summary of the invention
The present invention is frequency of vibration to carry out Self Adaptive Control in order to solve existing instrument vibration table, and cannot monitor in real time
The problem of vibrating effect；The invention provides a kind of self-adapting tuning vibration table and detection method.
A kind of self-adapting tuning vibration table, it includes photographic head, PC, control circuit plate, electromagnetic valve, cylinder, elasticity
Attachment means, vibration rack and alarm device；
Vibration rack is fixed on elastic connecting device, and vibration rack is used for fixing meters under test；
Photographic head is for the image information of Real-time Collection meters under test, the data signal output of photographic head and the data of PC
Signal input part connects, and the control signal outfan of PC is connected with the control signal input of control circuit plate, PC
Data signal output is connected with the data signal input of control circuit plate；
The alarm signal output ends of control circuit plate is connected with the alarm signal input of alarm device, the data of control circuit plate
Signal output part is connected with the data signal output of meters under test；
Control circuit plate is by controlling the on/off of electromagnetic valve, thus controls the motion of cylinder, and the motion of cylinder band successively is moved
Property attachment means and vibration rack interlock.
The present invention can be automatically adjusted the frequency of vibration rack vibration, makes vibration rack frequency of vibration arrive resonance with meters under test,
Whole vibration processes is monitored in real time, to meter parameter quantitative measurement.
Vibration table of the present invention, auto-adjustment control meters under test vibration amplitude, frequency, cater to the frequency of vibration rack vibration,
Modulate the frequency that can produce resonance, with realize instrument vibration amplitude maximize, can with the impact instrument of maximum magnitude,
The most do not bring the injury to instrument simultaneously.
The image that photographic head obtains, PC gradually increases the frequency of vibration, obtains peak swing according to image feedback, with
Time keep this frequency, vibrate three minutes.Monitor the data of meters under test in real time, according to the instrument feature being pre-designed, it is judged that
The state of instrument, if there is problem, then reports to the police, and provides warning problem such as simultaneously, and meter lamp is abnormal, and instrument refers to
Pin comes off, corresponding different alarm, analyzes reason for engineer.
The present invention brings and provides the benefit that, the present invention can be according to the natural frequency of meters under test Yu vibration rack, by regulation
Frequency of vibration is adjusted by the low frequency signal that PC sends, and frequency of vibration carries out Self Adaptive Control, makes meters under test and shakes
Dynamic support resonates, real-time monitoring vibration effect.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of self-adapting tuning vibration table of the present invention.
Detailed description of the invention
Detailed description of the invention one: see Fig. 1 and present embodiment is described, a kind of self-adapting tuning described in present embodiment shakes
Dynamic platform, it includes photographic head 1, PC 2, control circuit plate 3, electromagnetic valve 4, cylinder 5, elastic connecting device 6, shakes
Dynamic support 7 and alarm device 8；
Vibration rack 7 is fixed on elastic connecting device 6, and vibration rack 7 is used for fixing meters under test；
Photographic head 1 is for the image information of Real-time Collection meters under test, the data signal output of photographic head 1 and PC 2
Data signal input connect, the control signal input of the control signal outfan of PC 2 and control circuit plate 3 is even
Connecing, the data signal output of PC 2 is connected with the data signal input of control circuit plate 3；
The alarm signal output ends of control circuit plate 3 is connected with the alarm signal input of alarm device 8, control circuit plate 3
Data signal output be connected with the data signal output of meters under test；
Control circuit plate 3 is by controlling the on/off of electromagnetic valve 4, thus controls the motion of cylinder 5, and the motion of cylinder 5 depends on
Sub-band dynamic elasticity attachment means 6 and vibration rack 7 interlock.
In present embodiment, by regulating the frequency of vibration of vibration rack 7, make the frequency of vibration of vibration rack 7 and instrument to be measured
The natural frequency of table is identical, makes the two resonate, and under this resonant frequency, the vibration amplitude of meters under test is maximum, and at this
Under frequency after sustained vibration 3 minutes, meters under test is verified the most extremely.
Workflow:
Camera collection vibration rack parts of images, whether analysis meter is installed is put in place, if energising.To be analyzed normal after,
Starting to send frequency of vibration value, be sent to control circuit plate, the frequency that control circuit plate 3 output controls provides electromagnetic valve 4
Folding, now cylinder 5 starts of reciprocating vibration.Photographic head 1 analyzes the image of collection in real time, draws amplitude, and instrument
Duty, because using elastic connecting device between instrument and cylinder, has reached altogether during the amplitude maximum therefore vibrated exactly
The frequency shaken, now maintains this frequency to run.Until reaching predetermined time of vibration.According to the graphical analysis vibration gathered
Result.Occur on screen.If problematic needs is reported to the police, then trigger alarm device.
Detailed description of the invention two: see Fig. 1 and illustrate described in present embodiment, present embodiment and detailed description of the invention one
The difference of a kind of self-adapting tuning vibration table is, it also includes power supply 9, and power supply 9 is for providing electricity to control circuit plate 3
Energy.
Detailed description of the invention three: present embodiment uses a kind of self-adapting tuning vibration table described in detailed description of the invention one real
Existing detection method, the method comprises the steps:
Step one: meters under test keeps resting state, the vibrational image of photographic head 1 Real-time Collection meters under test, PC 2
Send low frequency signal to control circuit plate 3, this low frequency signal be incremented by successively with 0.05Hz for interval by threshold value send until
Final value, control circuit plate 3 sends data signal to meters under test simultaneously, makes meters under test be in the state of normal work；
Step 2: control circuit plate 3 exports control signal control electromagnetic valve 4 and closes, and makes cylinder 5 start working, cylinder 5
Motion drive elastic connecting device 6 and vibration rack 7 to interlock successively, so that meters under test vibrates on vibration rack 7；
Step 3: the PC 2 vibrational image by photographic head 1 Real-time Collection meters under test, it is thus achieved that the amplitude of meters under test,
PC 2 is in the frequency range of its low frequency signal sent, it is thus achieved that meters under test amplitude maximum；
Step 4: when PC 2 obtains meters under test amplitude maximum, PC 2 keeps meters under test amplitude maximum
Time corresponding frequency, make meters under test vibrate 3 minutes under this frequency, PC 2 according to the meters under test feature set,
Judge that meters under test is the most abnormal, when meters under test exception, control alarm device 8 by control circuit plate 3 and report to the police.
Claims (3)
1. a self-adapting tuning vibration table, it is characterised in that it includes photographic head (1), PC (2), control circuit
Plate (3), electromagnetic valve (4), cylinder (5), elastic connecting device (6), vibration rack (7) and alarm device (8)；
Vibration rack (7) is fixed on elastic connecting device (6), and vibration rack (7) is used for fixing meters under test；
Photographic head (1) is for the image information of Real-time Collection meters under test, the data signal output of photographic head (1) and PC
The data signal input of machine (2) connects, the control signal outfan of PC (2) and the control of control circuit plate (3)
Signal input part connects, and the data signal output of PC (2) is connected with the data signal input of control circuit plate (3)；
The alarm signal output ends of control circuit plate (3) is connected with the alarm signal input of alarm device (8), controls electricity
The data signal output of road plate (3) is connected with the data signal output of meters under test；
Control circuit plate (3) is by controlling the on/off of electromagnetic valve (4), thus controls the motion of cylinder (5), cylinder (5)
Motion drive successively elastic connecting device (6) and vibration rack (7) linkage.
A kind of self-adapting tuning vibration table the most according to claim 1, it is characterised in that it also includes power supply (9),
Power supply (9) is for providing electric energy to control circuit plate (3).
3. use the detection method that a kind of self-adapting tuning vibration table described in claim 1 realizes, it is characterised in that the party
Method comprises the steps:
Step one: meters under test keeps resting state, the vibrational image of photographic head (1) Real-time Collection meters under test, PC
(2) send low frequency signal to send out to control circuit plate (3), this low frequency signal by threshold value is incremental successively with 0.05Hz for interval
Sending until final value, control circuit plate (3) sends data signal to meters under test simultaneously, makes meters under test be in normal work
State；
Step 2: control circuit plate (3) output control signal controls electromagnetic valve (4) Guan Bi, makes cylinder (5) start working,
The motion of cylinder (5) drives elastic connecting device (6) and vibration rack (7) linkage successively, so that meters under test is shaking
The upper vibration of dynamic support (7)；
Step 3: the PC (2) vibrational image by photographic head (1) Real-time Collection meters under test, it is thus achieved that meters under test
Amplitude, PC (2) is in the frequency range of its low frequency signal sent, it is thus achieved that meters under test amplitude maximum；
Step 4: when PC (2) obtains meters under test amplitude maximum, PC (2) keeps meters under test amplitude
Frequency corresponding during big value, makes meters under test vibrate 3 minutes under this frequency, and PC (2) is according to the instrument to be measured set
Table feature, it is judged that meters under test is the most abnormal, when meters under test exception, controls alarm device by control circuit plate (3)
(8) report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177640.9A CN105865730B (en) | 2016-03-24 | 2016-03-24 | A kind of self-adapting tuning shake table and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610177640.9A CN105865730B (en) | 2016-03-24 | 2016-03-24 | A kind of self-adapting tuning shake table and detection method |
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| CN105865730A true CN105865730A (en) | 2016-08-17 |
| CN105865730B CN105865730B (en) | 2018-09-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063679A (en) * | 2017-01-18 | 2017-08-18 | 北京工业大学 | The gear defects quick determination method and detection means of structurally tuned resonance |
| CN107063448A (en) * | 2017-06-09 | 2017-08-18 | 江苏中信博新能源科技股份有限公司 | A kind of device and method of testing for simulating photovoltaic mount vibration frequency |
| CN107123116A (en) * | 2017-04-25 | 2017-09-01 | 航天科技控股集团股份有限公司 | Based on cloud platform Full-automatic instrument detecting system and detection method |
| CN109186911A (en) * | 2018-10-31 | 2019-01-11 | 四川省建筑科学研究院 | A kind of adaptive exciting of building and dynamic characteristics identifying system and method |
| CN112082722A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Vibration testing device and vibration testing method for emergency cut-off valve |
| CN112504616A (en) * | 2020-11-18 | 2021-03-16 | 中国空气动力研究与发展中心 | Method and device for suppressing harmonic waves of astronomical dynamic force |
| CN117470292A (en) * | 2023-10-17 | 2024-01-30 | 宁波博信电器有限公司 | Instrument detection method, system, intelligent terminal and storage medium |
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| CN105424350A (en) * | 2015-12-19 | 2016-03-23 | 湖南科技大学 | Method and system for thin-wall part modal testing based on machine vision |
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| DD151811A1 (en) * | 1980-06-25 | 1981-11-04 | Joachen Baumann | SPRING MEASUREMENT SYSTEM FOR MECHANICAL SWIVEL TABLES |
| CN1442683A (en) * | 2003-04-17 | 2003-09-17 | 上海交通大学 | Large power generator stator winding terminal part vibration on line monitoring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063679A (en) * | 2017-01-18 | 2017-08-18 | 北京工业大学 | The gear defects quick determination method and detection means of structurally tuned resonance |
| CN107063679B (en) * | 2017-01-18 | 2020-01-10 | 北京工业大学 | Method and device for quickly detecting gear defects by structure tuned resonance |
| CN107123116A (en) * | 2017-04-25 | 2017-09-01 | 航天科技控股集团股份有限公司 | Based on cloud platform Full-automatic instrument detecting system and detection method |
| CN107063448A (en) * | 2017-06-09 | 2017-08-18 | 江苏中信博新能源科技股份有限公司 | A kind of device and method of testing for simulating photovoltaic mount vibration frequency |
| CN107063448B (en) * | 2017-06-09 | 2024-01-19 | 江苏中信博新能源科技股份有限公司 | Device for simulating vibration frequency of photovoltaic bracket and testing method |
| CN109186911A (en) * | 2018-10-31 | 2019-01-11 | 四川省建筑科学研究院 | A kind of adaptive exciting of building and dynamic characteristics identifying system and method |
| CN109186911B (en) * | 2018-10-31 | 2021-04-20 | 四川省建筑科学研究院有限公司 | Building self-adaptive excitation and dynamic characteristic identification system and method |
| CN112082722A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Vibration testing device and vibration testing method for emergency cut-off valve |
| CN112504616A (en) * | 2020-11-18 | 2021-03-16 | 中国空气动力研究与发展中心 | Method and device for suppressing harmonic waves of astronomical dynamic force |
| CN117470292A (en) * | 2023-10-17 | 2024-01-30 | 宁波博信电器有限公司 | Instrument detection method, system, intelligent terminal and storage medium |
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| CN105865730B (en) | 2018-09-28 |
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