CN107314818A - One kind is directed to turbo blade infra-red radiation optical acquisition device - Google Patents
One kind is directed to turbo blade infra-red radiation optical acquisition device Download PDFInfo
- Publication number
- CN107314818A CN107314818A CN201710522155.5A CN201710522155A CN107314818A CN 107314818 A CN107314818 A CN 107314818A CN 201710522155 A CN201710522155 A CN 201710522155A CN 107314818 A CN107314818 A CN 107314818A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- turbo blade
- speculum
- collimating mirror
- alignment slides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000011324 bead Substances 0.000 claims abstract description 6
- 238000012937 correction Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000001310 location test Methods 0.000 abstract description 2
- 238000009529 body temperature measurement Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 206010047513 Vision blurred Diseases 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0088—Radiation pyrometry, e.g. infrared or optical thermometry in turbines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0205—Mechanical elements; Supports for optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/084—Adjustable or slidable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The disclosure of the invention is a kind of to be directed to turbo blade infra-red radiation optical acquisition device, belongs to mechanical structure field, the focus adjustment method of specific design light.The infrared radiating light of turbine blade surface is gathered by speculum, collimated by collimating mirror, finally gathered again by focus lamp by receiver, collimating mirror is arranged in alignment slides, alignment slides are arranged on collimation guide rail, it is slidably connected between alignment slides and collimation guide rail using rigid bead to realize, the accurate movement of alignment slides is realized by the engagement of gear and rack, it is more accurate in order to the displacement of alignment slides, the set location test point on collimation guide rail, position detection and correction for alignment slides；So as to which the present invention has the collection of turbo blade infra-red radiation light corresponding, the high advantage of focusing accuracy.
Description
Technical field
The invention belongs to mechanical structure field, the focus adjustment method of specific design light.
Background technology
Compared with general thermometry, infrared temperature-test technology has without being contacted with testee, will not destroy measured object
The temperature field of body, reaction speed is fast, can measure that target temperature sensitivity is high in several milliseconds, the distinguishable temperature from 0.01 DEG C
Difference, temperature-measuring range is easy to operate from -170 DEG C to more than 3200 DEG C, safe and reliable, the advantages of real-time monitored can be achieved.Therefore,
Infrared measurement of temperature is also widely used in the fields such as industry, astronomy, meteorology, resource detection, scientific research, military affairs by domestic and international enterprise.
Infrared temperature measurement system is made up of two big important modules, is infrared detection module and optical module, optical module respectively
The electromagnetic wave that testee surface emissivity goes out is converged into infrared detection module, infrared detection module again turns the energy received
Change electric signal into, by amplifying circuit, after compensation circuit and linear process, the temperature of testee is shown in display terminal
Degree.The optical module of traditional infrared temp measuring system is focused on and through straightening disk by collimating mirror, the collimated mirror of light radiation of testee
It is irradiated to after modulation in infrared detection module.
At present, the independent research of China's aero-engine is in critical stage, and the accurate measurement of Turbine Blade Temperature Field is restriction
High-performance, a technical bottleneck of high thrust-weight ratio engine research and development, solve the problems, such as the accurate measurement of engine turbine leaf temperature
Turn into the task of top priority.Using infrared temperature-test technology, it is possible to achieve for the real-time accurate monitoring of engine turbine leaf temperature.
When carrying out temperature monitoring to turbo blade using infrared temperature-test technology, in order to which the temperature for obtaining turbo blade whole region is believed
Breath to the different zones on turbo blade, it is necessary to carry out point-to-point measurement.Accordingly, it would be desirable to using optic probe on turbo blade
Each point carries out point by point scanning, by the pivot angle for changing speculum so that collimating mirror collects diverse location point on turbo blade successively
Heat radiation.During point by point scanning is carried out to each point on turbo blade using optic probe, due to the knot of turbo blade
Structure feature so that the point of diverse location has different object distances for collimating mirror on turbo blade, so that detection
Picture point on device produces defocus, and then influences the measurement accuracy of amount of radiation.
In traditional infrared temperature measurement system, because collimation lens are fixed, once testee object distance changes, quilt
The infrared light that survey object radiation goes out accurately be will be unable to focus in infrared detection module, and temperature measurement accuracy will be greatly affected.
Therefore for turbogenerator turbine blade surface thermometric, it is to be badly in need of to study a kind of varifocal infrared measurement of temperature optical module
's.
The content of the invention
In order to overcome the problem that focusing collimation lens present in existing infrared temperature measurement system can not focus, the invention provides
A kind of adjustable focus infrared temperature measurement apparatus applied to turbine blade surface temperature survey.
Technical solution of the present invention is directed to turbo blade infra-red radiation optical acquisition device to be a kind of, and the device includes：Speculum
And its pedestal, collimating mirror, collimation guide rail, alignment slides, focus lamp and its pedestal, infrared light receiver, the speculum is used for
The infrared light reflection that turbo blade is given off is into thermometric light path, and movable connection is anti-to adjust between speculum and pedestal
Penetrate the reflection angle of mirror；The collimating mirror is fixed in alignment slides, and alignment slides are located on collimation guide rail；The speculum is anti-
The infrared light penetrated is gathered after passing sequentially through collimating mirror, focus lamp by infrared light receiver；It is characterized in that the alignment slides
Along the left and right sides of collimation guide rail glide direction, side sets power set and the geared assembly with collimating guide rail, and opposite side is set
Put load-bearing；The row geared assembly is the gear of power set in alignment slides, the rack on collimation guide rail；The load-bearing is firm
Property bead；The side that the collimation guide rail is used for rigid bead slip is highly less than opposite side.
Further, it is described collimation guide rail on be provided with multiple position detection points, for alignment slides position detection and
Correction.
Further, described speculum is made up of quartz, and reflecting surface is coated with metal platinum, and optic diameter is 10mm；It is described
Collimating mirror be made up of calcium fluoride material, a diameter of 30mm；Described focus lamp material is zinc selenide, a diameter of 30mm；Measurement
When speculum and turbo blade distance be 100mm.
The present invention is directed to turbo blade infra-red radiation optical acquisition device to be a kind of, and turbine blade surface is gathered by speculum
Infrared radiating light, collimated by collimating mirror, then finally gathered by focus lamp by receiver, collimating mirror is arranged at alignment slides
On, alignment slides are arranged on collimation guide rail, are slidably connected between alignment slides and collimation guide rail using rigid bead to realize,
The accurate movement of alignment slides is realized by the engagement of gear and rack, it is more accurate in order to the displacement of alignment slides,
The set location test point on collimation guide rail, position detection and correction for alignment slides；So as to which the present invention has turbine leaf
The collection of piece infra-red radiation light is corresponding, the high advantage of focusing accuracy.
Brief description of the drawings
Fig. 1 is the varifocal optical module schematic diagram of turbo blade temp measuring system.
Fig. 2 is the overall schematic of varifocal infrared measurement of temperature optical module.
Fig. 3 is the schematic diagram that collimating mirror guide rail base moves sliding block with collimating mirror.
Fig. 4 is schematic diagram when using varifocal infrared temperature measurement system to turbo blade thermometric.
In figure：1. speculum, 2. measurement pedestals, 3. collimating mirrors, 4. collimating mirror guide rail bases, 5. collimating mirrors movement sliding block,
6. focus lamp, 7. infrared light receivers, 8. position detection points, 9. power set.
Embodiment
The present invention is done with reference to the accompanying drawings and examples and further introduced.
Described speculum is made up of quartz, and reflecting surface is coated with metal platinum, and optic diameter is 10mm, is adjusted by main control centre
Deflection angle is saved, for the infrared light reflection that gives off turbo blade into thermometric light path.
Described measurement pedestal is used for the fixation to speculum and infrared detector.
Described collimating mirror is made up of calcium fluoride material, a diameter of 30mm, for the infrared light reflected to speculum
It is changed into directional light, the infrared light that turbo blade is given off accurately is focused in infrared detector.As shown in figure 4, working as speculum
Deflection angle changes, and the radiation energy that the point of diverse location gives off on turbo blade is reflected in light path, due on blade not
Point with position has different object distances for collimating mirror, and the image distance in the present invention keeps constant, in order that reflection
The radiation energy of corresponding temperature measuring point can be focused onto in infrared detector after mirror deflection, and collimating mirror is needed as speculum is inclined
Transfer moves respective distance to ensure that object distance is constant.The a length of 100mm of the present embodiment turbo blade, speculum is with turbo blade distance
100mm, speculum works as mirror deflection, temperature measuring point is moved to blade root, thing from turbine blade-tip above turbo blade blade tip
Away from change 42mm or so, in order to ensure that object distance is constant, collimating mirror needs to move to left 42mm so that the temperature measuring point on turbo blade blade root
The radiation energy sent can be focused onto in detector.
Described collimating mirror guide rail base is used to collimating mirror being fixed on infrared light by light path, and determines that collimating mirror is moved
Dynamic direction.
Described collimating mirror movement sliding block is used to drive collimating mirror to move to realize focusing on collimating mirror guide rail base.Such as
Shown in Fig. 2, without intermediate medium between described collimating mirror movement sliding block and collimating mirror guide rail base, and use and be more applicable and height
Speed motion, the rolling steel balls that coefficient of friction is small, sensitivity is high, during collimating mirror movement sliding block movement, steel ball is just moved in collimating mirror
Between sliding block and collimating mirror guide rail roll, the wear extent of guide rail and sliding block is shared on each steel ball, thus extend guide rail with
The service life of sliding block.
Described focus lamp is made up of zinc selenide, and a diameter of 30mm, focal length is 60mm, for will pass through the parallel of collimating mirror
Light is focused in infrared detector.
The infrared light that described infrared detector is used to give off turbo blade is converted into electric signal.
Claims (3)
1. one kind is directed to turbo blade infra-red radiation optical acquisition device, the device includes：Speculum and its pedestal, collimating mirror, standard
Straight guide, alignment slides, focus lamp and its pedestal, infrared light receiver, the speculum are used for give off turbo blade
Infrared light reflection is movable between speculum and pedestal to connect to adjust the reflection angle of speculum into thermometric light path；Institute
State collimating mirror to be fixed in alignment slides, alignment slides are located on collimation guide rail；The infrared light of the speculum reflection is successively
By being gathered after collimating mirror, focus lamp by infrared light receiver；It is characterized in that the alignment slides edge collimation guide rail slip side
To the left and right sides, side set power set and with collimate guide rail geared assembly, opposite side set load-bearing；The row engagement
Device is the gear of power set in alignment slides, the rack on collimation guide rail；The load-bearing is rigid bead；The collimation is led
The side that rail is used for rigid bead slip is highly less than opposite side.
2. it is as claimed in claim 1 a kind of for turbo blade infra-red radiation optical acquisition device, it is characterised in that the collimation
Multiple position detection points are provided with guide rail, position detection and correction for alignment slides.
3. it is as claimed in claim 1 a kind of for turbo blade infra-red radiation optical acquisition device, it is characterised in that described is anti-
Penetrate mirror to be made up of quartz, reflecting surface is coated with metal platinum, optic diameter is 10mm；Described collimating mirror is made up of calcium fluoride material,
A diameter of 30mm；Described focus lamp material is zinc selenide, a diameter of 30mm；Speculum is with turbo blade distance during measurement
100mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522155.5A CN107314818A (en) | 2017-06-30 | 2017-06-30 | One kind is directed to turbo blade infra-red radiation optical acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522155.5A CN107314818A (en) | 2017-06-30 | 2017-06-30 | One kind is directed to turbo blade infra-red radiation optical acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107314818A true CN107314818A (en) | 2017-11-03 |
Family
ID=60179709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710522155.5A Pending CN107314818A (en) | 2017-06-30 | 2017-06-30 | One kind is directed to turbo blade infra-red radiation optical acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107314818A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443540A (en) * | 2018-09-25 | 2019-03-08 | 北京理工大学 | A kind of more plane accurate positioning devices in space |
| CN111649731A (en) * | 2020-06-03 | 2020-09-11 | 武昌理工学院 | Matrix type surveying and mapping detection equipment |
| CN115199967A (en) * | 2022-07-15 | 2022-10-18 | 北京环境特性研究所 | Irradiation distance adjustable solar simulator system |
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| CN2914145Y (en) * | 2006-05-31 | 2007-06-20 | 比亚迪股份有限公司 | Focusing and testing device for vidicon head die set |
| JP2010257545A (en) * | 2009-04-28 | 2010-11-11 | Funai Electric Co Ltd | Optical disk drive |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443540A (en) * | 2018-09-25 | 2019-03-08 | 北京理工大学 | A kind of more plane accurate positioning devices in space |
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| CN111649731A (en) * | 2020-06-03 | 2020-09-11 | 武昌理工学院 | Matrix type surveying and mapping detection equipment |
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| CN115199967A (en) * | 2022-07-15 | 2022-10-18 | 北京环境特性研究所 | Irradiation distance adjustable solar simulator system |
| CN115199967B (en) * | 2022-07-15 | 2024-01-12 | 北京环境特性研究所 | Irradiation distance adjustable solar simulator system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171103 |