CN203324296U - Rotating speed precise online measuring system - Google Patents
Rotating speed precise online measuring system Download PDFInfo
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- CN203324296U CN203324296U CN2013201625928U CN201320162592U CN203324296U CN 203324296 U CN203324296 U CN 203324296U CN 2013201625928 U CN2013201625928 U CN 2013201625928U CN 201320162592 U CN201320162592 U CN 201320162592U CN 203324296 U CN203324296 U CN 203324296U
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- optical fiber
- light source
- laser light
- wavelength division
- light splitting
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Abstract
The utility model relates to a rotating speed precise online measuring system, which comprises an optical interference measuring system module, a data acquisition module and a data analysis and result representation module. The optical interference measuring system module comprises a collimation used laser light source, a measurement used scanning laser light source, a wavelength division coupler, an optical fiber circulator, an optical-wave light splitting optical fiber, a detector connected with the data acquisition module and a reflector arranged on a rotating disk, wherein one end of the wavelength division coupler is connected with the collimation used laser light source and the detector, the other end of the wavelength division coupler is connected with the optical-wave light splitting optical fiber, one end of the optical fiber circulator is connected with the measurement used scanning laser light source and the detector, the other end of the optical fiber circulator is connected with the optical-wave light splitting optical fiber, and two light outlets of the optical-wave light splitting optical fiber are both provided with lenses ahead. The beneficial effect is that the rotating speed precise online measuring system has the advantages of simple structure, convenient operation, non-contact, high measurement precision and sensitivity and the like.
Description
Technical field
The utility model relates to the accurate on-line measurement system of a kind of rotating speed.
Background technology
The measurement of spinner velocity size and Orientation is a major issue in the industrial circles such as machine-building always.Can be divided into contact and contactless to the measuring method of spinner velocity at present.Wherein contact is mainly Mechanical measurement, and this measuring method depends on contact, mounting structure complexity, and the loading motion is discontinuous, measuring accuracy does not reach requirement.
The utility model content
The utility model proposes the accurate on-line measurement system of a kind of rotating speed, simple in structure, easy to operate, there is the precision of noncontact, measurement and highly sensitive, made up weak point of the prior art.
The technical solution of the utility model is achieved in that
The accurate on-line measurement system of a kind of rotating speed, comprise the optical interferometric systems module, data acquisition module and Data Analysis and representation module as a result, described optical interferometric systems module comprises the collimation LASER Light Source, measure and use the scan laser light source, Wavelength division coupler, optical fiber circulator, light wave light splitting optical fiber, the detecting device be connected with described data acquisition module and be arranged on the catoptron on rotating disk, one end of described Wavelength division coupler is connected with described detecting device by LASER Light Source with described collimation respectively, the other end of described Wavelength division coupler is connected with described light wave light splitting optical fiber, one end of described optical fiber circulator is connected with described detecting device with the scan laser light source with described measurement respectively, the other end of described optical fiber circulator is connected with described light wave light splitting optical fiber, the place ahead of two light-emitting windows of described light wave light splitting optical fiber is equipped with lens.
The beneficial effects of the utility model are: simple in structure, easy to operate, there is the advantages such as the precision of noncontact, measurement and sensitivity height.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structured flowchart that Fig. 1 is the accurate on-line measurement system of the described rotating speed of the utility model embodiment.
In figure:
1, data acquisition module; 2, collimation LASER Light Source; 3, measure and use the scan laser light source; 4, Wavelength division coupler; 5, optical fiber circulator; 6, light wave light splitting optical fiber; 7, detecting device; 8, lens; 9, catoptron; The 1C rotating disk.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
As shown in Figure 1, the accurate on-line measurement system of the described rotating speed of the utility model embodiment, comprise the optical interferometric systems module, data acquisition module 1 and Data Analysis and representation module as a result, described optical interferometric systems module comprises LASER Light Source 2 for collimation, measure with scan laser light source 3, Wavelength division coupler 4, optical fiber circulator 5, light wave light splitting optical fiber 6, the detecting device 7 be connected with described data acquisition module 1 and be arranged on the catoptron 9 on rotating disk 10, one end of described Wavelength division coupler 4 is connected with described detecting device 7 by LASER Light Source 2 with described collimation respectively, the other end of described Wavelength division coupler 4 is connected with described light wave light splitting optical fiber 6, one end of described optical fiber circulator 5 is connected with described detecting device 7 with scan laser light source 3 with described measurement respectively, the other end of described optical fiber circulator 5 is connected with described light wave light splitting optical fiber 6, the place ahead of two light-emitting windows of described light wave light splitting optical fiber 6 is equipped with lens 8.
Principle of work of the present utility model is: collimation by Wavelength division coupler 4, is inputted light wave light splitting optical fiber 6 through optical fiber with laser.The two-beam of these light wave light splitting optical fiber 6 outputs is through lens 8 collimations, irradiating object surface.Measurement by fiber optical circulator 5, enters light wave light splitting optical fiber 6 with scan laser.The two-beam of these light wave light splitting optical fiber 6 outputs is through lens 8 collimations, irradiating object surface.The two-beam reflected enters light wave light splitting optical fiber after merging.This light wave light splitting optical fiber output two-beam.Wherein light beam, by fiber optical circulator 5, inputs to detecting device 7.Light beam, by Wavelength division coupler 4, also inputs to detecting device 7 in addition.
Rotating disk 10 drives catoptron 9 High Rotation Speed in the counterclockwise direction.The phasic difference of the two-beam be reflected back from catoptron 9 is closely related with the position of catoptron 9.When the position of catoptron 9 approaches the normal place shown in Fig. 1, the phasic difference of two-beam diminishes gradually.When the position of catoptron 9 and normal place overlap, the phasic difference of two-beam is zero.When normal place is left in the position of catoptron 9, it is large that the phasic difference of two-beam becomes gradually.Use the phasic difference of optical interdferometer precision measurement two-beam and the relation of time.By analyzing this data, calculate the rotating speed of rotating disk.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the accurate on-line measurement system of a rotating speed, comprise the optical interferometric systems module, data acquisition module and Data Analysis and representation module as a result, it is characterized in that: described optical interferometric systems module comprises the collimation LASER Light Source, measure and use the scan laser light source, Wavelength division coupler, optical fiber circulator, light wave light splitting optical fiber, the detecting device be connected with described data acquisition module and be arranged on the catoptron on rotating disk, one end of described Wavelength division coupler is connected with described detecting device by LASER Light Source with described collimation respectively, the other end of described Wavelength division coupler is connected with described light wave light splitting optical fiber, one end of described optical fiber circulator is connected with described detecting device with the scan laser light source with described measurement respectively, the other end of described optical fiber circulator is connected with described light wave light splitting optical fiber, the place ahead of two light-emitting windows of described light wave light splitting optical fiber is equipped with lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201625928U CN203324296U (en) | 2013-04-03 | 2013-04-03 | Rotating speed precise online measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201625928U CN203324296U (en) | 2013-04-03 | 2013-04-03 | Rotating speed precise online measuring system |
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| CN203324296U true CN203324296U (en) | 2013-12-04 |
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| CN2013201625928U Expired - Fee Related CN203324296U (en) | 2013-04-03 | 2013-04-03 | Rotating speed precise online measuring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459182A (en) * | 2014-11-18 | 2015-03-25 | 哈尔滨工业大学 | Optical fiber speed measurement device and method for high-speed rolling bearing retainer with inner ring and outer ring rotating simultaneously |
| CN104907133A (en) * | 2015-06-12 | 2015-09-16 | 遵义市立新机械有限责任公司 | Speed measurement device for crusher rotor |
| CN105242059A (en) * | 2015-10-12 | 2016-01-13 | 东南大学成贤学院 | Rotating speed measuring instrument by means of visual persistence and lens imaging principle, and measuring method thereof |
| CN107402134A (en) * | 2017-09-07 | 2017-11-28 | 清华大学 | Rotating machinery tach signal synchronization detecting system based on hole inspecting hole |
| CN111812346A (en) * | 2020-07-28 | 2020-10-23 | 华中科技大学 | Interference type all-fiber rotary Doppler velocimeter |
-
2013
- 2013-04-03 CN CN2013201625928U patent/CN203324296U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459182A (en) * | 2014-11-18 | 2015-03-25 | 哈尔滨工业大学 | Optical fiber speed measurement device and method for high-speed rolling bearing retainer with inner ring and outer ring rotating simultaneously |
| CN104907133A (en) * | 2015-06-12 | 2015-09-16 | 遵义市立新机械有限责任公司 | Speed measurement device for crusher rotor |
| CN105242059A (en) * | 2015-10-12 | 2016-01-13 | 东南大学成贤学院 | Rotating speed measuring instrument by means of visual persistence and lens imaging principle, and measuring method thereof |
| CN105242059B (en) * | 2015-10-12 | 2018-06-26 | 东南大学成贤学院 | Utilize the persistence of vision and the tachometric survey instrument and measuring method of lens imaging principle |
| CN107402134A (en) * | 2017-09-07 | 2017-11-28 | 清华大学 | Rotating machinery tach signal synchronization detecting system based on hole inspecting hole |
| CN107402134B (en) * | 2017-09-07 | 2018-08-03 | 清华大学 | Rotating machinery tach signal based on hole inspecting hole synchronizes detecting system |
| CN111812346A (en) * | 2020-07-28 | 2020-10-23 | 华中科技大学 | Interference type all-fiber rotary Doppler velocimeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160403 |