CN105953909A - Home appliance vibration automatic detection system and method based on laser displacement sensors - Google Patents
Home appliance vibration automatic detection system and method based on laser displacement sensors Download PDFInfo
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- CN105953909A CN105953909A CN201610507090.2A CN201610507090A CN105953909A CN 105953909 A CN105953909 A CN 105953909A CN 201610507090 A CN201610507090 A CN 201610507090A CN 105953909 A CN105953909 A CN 105953909A
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- laser displacement
- displacement sensor
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- module
- electric oscillation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a home appliance vibration automatic detection system based on laser displacement sensors. The home appliance vibration automatic detection system comprises a vibration signal acquisition module, a motion module and a vibration isolation module, wherein the motion module drives the vibration signal acquisition module to move, and the vibration signal acquisition module comprises three laser displacement sensors and an acquisition. The home appliance vibration automatic detection system and a home appliance vibration automatic detection method provided by the invention can preset a detection route according to features of a detected object, perform accurate point detection on the detected object, and can be directly applied to product quality detection in production lines.
Description
Technical field
The present invention relates to a kind of vibration detecting system and method, specifically, relate to a kind of based on laser displacement sensor
Family's electric oscillation automatic checkout system and method.
Background technology
The detection method of the contacts such as traditional method for detecting vibration many employings piezoelectric acceleration sensor, this method needs
The sensor of contact is fixed on the surface of measured object by glue to be used or Magnet, for needing the surface ensureing measured object to exist
In the case of lossless, it is to use touch sensor that it is carried out vibration detection.And traditional contactless vibration detection
Method then uses the laser doppler vibrometer that price is high, this method to promote on a production line.
Using laser displacement sensor then can well solve problem above, laser displacement sensor is contactless
Displacement transducer, for having higher sensitivity, and relative laser Doppler, price is relatively low, it is filled with Automated condtrol
Putting combines can well carry out lossless vibration detection to the vibration of air-conditioning.
Summary of the invention
Instant invention overcomes shortcoming of the prior art, it is provided that a kind of family based on laser displacement sensor electric oscillation is certainly
Dynamic detecting system and method, it is possible to according to detection features of the object, preset detection path, and detection object is carried out accurate spot check
Survey.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, including vibration signals collecting module, fortune
Dynamic model block and isolating technique module, described motion module drives described vibration signals collecting module to move.
Further, described vibration signals collecting module includes three laser displacement sensors and a capture card.
Further, the operating distance of described laser displacement sensor be 50-60mm, measurement scope be 10-20mm, sensitivity
For 0.8-1.2 μm/v, and three laser displacement sensors are fixed on described motion module.
Further, described capture card is 8 channel acquisition cards, and its highest sample frequency is 40khz-50khz.
Further, described motion module is made up of rack construction, movement executing mechanism and motion control device.
Further, described rack construction is cuboid framework, and described isolating technique module is arranged at described cuboid framework
Bottom, the end face of described cuboid framework, adjacent two sides are equipped with movement executing mechanism.
Further, described movement executing mechanism is respectively by two driven by servomotor, can carry out two maintenance and operations at horizontal plane
Dynamic telecontrol equipment.
Further, described telecontrol equipment is provided with the fixed plate that can fix described laser displacement sensor, described servomotor
Laser displacement sensor is led to carry out the motion of two dimensions in frame face.
Further, described motion control device is NI motion control card, described isolating technique module be natural frequency be 4-
The vibration isolation table of 6hz.
The method that a kind of family based on laser displacement sensor electric oscillation detects automatically, when outdoor machine of air-conditioner is placed on detection
In system and during stable operation, the motion pick card in the motion control device of detecting system is by the motion rail according to typing in advance
Mark program, sends signal to the servomotor of movement executing mechanism, and control driven by servomotor telecontrol equipment is led and is fixed on fortune
Laser displacement sensor on dynamic model block moves to the test point specified and according to required detection along the movement locus set
Time stops, and after laser displacement sensor arrives and specifies test point, motion pick card will send trigger collection by position machine on which
Signal, host computer is by starting to record by the signal of vibration signals collecting module collection gained, when laser displacement sensor is according in advance
If after route has gathered the vibration signal of all of test point, movement executing mechanism will lead laser displacement sensor to return to motion
Initial point.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of family based on laser displacement sensor electric oscillation automatic checkout system of the present invention and method, it is possible to according to
Detection features of the object, presets detection path, and detection object is carried out Accurate Points detection, and the present invention can be directly used for production line
Product quality detects.
Accompanying drawing explanation
Accompanying drawing is used for providing a further understanding of the present invention, is used for together with embodiments of the present invention explaining the present invention,
It is not intended that limitation of the present invention, in the accompanying drawings:
Fig. 1 is the overall structure of a kind of family based on laser displacement sensor of the present invention electric oscillation automatic checkout system
Figure；
Fig. 2 is the Motor execution of a kind of family based on laser displacement sensor of the present invention electric oscillation automatic checkout system
The isometric views of mechanism；
Fig. 3 is the testing process of a kind of family based on laser displacement sensor of the present invention electric oscillation automatic checkout system
Figure.
In figure, 1 laser displacement sensor；2 rack constructions；
3 servomotors；4 fixed plates；
5 vibration isolation table；6 outdoor machine of air-conditioner.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred reality described herein
Execute example be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in Figures 1 to 3, a kind of family based on laser displacement sensor of the present invention electric oscillation automatic checkout system,
Including vibration signals collecting module, motion module and isolating technique module, motion module drives vibration signals collecting module to move
Dynamic.
Vibration signals collecting module includes three laser displacement sensors 1 and a capture card, laser displacement sensor 1
Operating distance be 50-60mm, measurement scope be 10-20mm, sensitivity be 0.8-1.2 μm/v, and three laser displacements pass
Sensor 1 is fixed on motion module, and capture card is 8 channel acquisition cards, and its highest sample frequency is 40khz-50khz.
Motion module is made up of rack construction 2, movement executing mechanism and motion control device, and rack construction 2 is cuboid
Framework, isolating technique module is arranged at cuboid base of frame, and the front of cuboid framework, end face and side are equipped with motion
Actuator, movement executing mechanism, for be driven by two servomotors 3 respectively, can carry out the sportswear of two dimensional motion at horizontal plane
Put, telecontrol equipment include can the fixed plate 4 of fixed laser displacement transducer 1, servomotor 3 leads laser displacement to pass in frame face
Sensor 1 carries out the motion of two dimensions.
Motion control device is NI motion control card, isolating technique module be natural frequency be the vibration isolation table 5 of 4-6hz.
The work process of the present invention is:
When outdoor machine of air-conditioner 6 is placed in detecting system also stable operation, the motion control device of detecting system is by root
According to the movement locus program of typing in advance, send signal to the servomotor 3 of movement executing mechanism, control servomotor 3 and drive
Telecontrol equipment leads the laser displacement sensor 1 being fixed in motion module to move to the inspection specified along the movement locus set
Measuring point also stops according to the required detection time, and after laser displacement sensor 1 arrives and specifies test point, motion pick card is by right
Its host computer sends trigger collection signal, and host computer is gathered the signal of gained by starting record by vibration signals collecting module, when
After laser displacement sensor 1 has gathered the vibration signal of all of test point according to predetermined paths, movement executing mechanism will be led
Laser displacement sensor 1 returns to motion initial point.
Finally it is noted that these are only the preferred embodiments of the present invention, it is not limited to the present invention, although
Being described in detail the present invention with reference to embodiment, for a person skilled in the art, it still can be to aforementioned
Technical scheme described in each embodiment is modified, or wherein portion of techniques feature carries out equivalent, but all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. family based on a laser displacement sensor electric oscillation automatic checkout system, it is characterised in that: include that vibration signal is adopted
Collection module, motion module and isolating technique module, described motion module drives described vibration signals collecting module to move.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described vibration signals collecting module includes three laser displacement sensors and a capture card.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: the operating distance of described laser displacement sensor is 50-60mm, measurement scope is 10-20mm, sensitivity is 0.8-1.2 μm/
V, and three laser displacement sensors are fixed on described motion module.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described capture card is 8 channel acquisition cards, and its highest sample frequency is 40khz-50khz.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described motion module is made up of rack construction, movement executing mechanism and motion control device.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described rack construction is cuboid framework, and described isolating technique module is arranged at described cuboid base of frame, described rectangular
The end face of body framework, adjacent two sides are equipped with movement executing mechanism.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described movement executing mechanism is respectively by two driven by servomotor, can carry out the telecontrol equipment of two dimensional motion at horizontal plane.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described telecontrol equipment includes the fixed plate that can fix described laser displacement sensor, and described servomotor is led in frame face
Laser displacement sensor carries out the motion of two dimensions.
A kind of family based on laser displacement sensor electric oscillation automatic checkout system, its feature exists
In: described motion control device is NI motion control card, described isolating technique module be natural frequency be the vibration isolation table of 4-6hz.
10. the method that family based on a laser displacement sensor electric oscillation detects automatically, it is characterised in that: when outdoor machine of air-conditioner quilt
When being positioned in detecting system also stable operation, the motion pick card in the motion control device of detecting system will be according to recording in advance
The movement locus program entered, sends signal to the servomotor of movement executing mechanism, controls driven by servomotor telecontrol equipment band
Laser displacement sensor that neck is fixed in motion module along the movement locus set move to the test point specified and according to
The required detection time stops, and after laser displacement sensor arrives and specifies test point, motion pick card will be sent out by position machine on which
Sending trigger collection signal, host computer is by starting to record by the signal of vibration signals collecting module collection gained, when laser displacement passes
After sensor has gathered the vibration signal of all of test point according to predetermined paths, movement executing mechanism will lead laser displacement to sense
Device returns to motion initial point.
Priority Applications (1)
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| CN201610507090.2A CN105953909A (en) | 2016-06-28 | 2016-06-28 | Home appliance vibration automatic detection system and method based on laser displacement sensors |
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| CN201610507090.2A CN105953909A (en) | 2016-06-28 | 2016-06-28 | Home appliance vibration automatic detection system and method based on laser displacement sensors |
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| CN201610507090.2A Pending CN105953909A (en) | 2016-06-28 | 2016-06-28 | Home appliance vibration automatic detection system and method based on laser displacement sensors |
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Cited By (5)
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|---|---|---|---|---|
| CN106872014A (en) * | 2017-02-08 | 2017-06-20 | 西安交通大学 | A kind of ultra micro device vibration natural frequency test system and method for testing |
| CN107449505A (en) * | 2017-09-25 | 2017-12-08 | 厦门大学 | A kind of contactless power output assembly vibration test system |
| CN108844472A (en) * | 2018-06-07 | 2018-11-20 | 中国科学院合肥物质科学研究院 | A kind of compartment measurement and positioning device and control method |
| CN110160623A (en) * | 2018-04-24 | 2019-08-23 | 北京机电工程研究所 | Hanging and measurement combined system |
| WO2020253455A1 (en) * | 2019-06-17 | 2020-12-24 | 合肥美的智能科技有限公司 | Detection apparatus, vibration level determination method, vending apparatus and storage medium |
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| CN110160623A (en) * | 2018-04-24 | 2019-08-23 | 北京机电工程研究所 | Hanging and measurement combined system |
| CN108844472A (en) * | 2018-06-07 | 2018-11-20 | 中国科学院合肥物质科学研究院 | A kind of compartment measurement and positioning device and control method |
| CN108844472B (en) * | 2018-06-07 | 2021-05-25 | 中国科学院合肥物质科学研究院 | Carriage measuring and positioning device and control method |
| WO2020253455A1 (en) * | 2019-06-17 | 2020-12-24 | 合肥美的智能科技有限公司 | Detection apparatus, vibration level determination method, vending apparatus and storage medium |
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