CN111982345A - Non-contact optical fiber point temperature instrument - Google Patents
Non-contact optical fiber point temperature instrument Download PDFInfo
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- CN111982345A CN111982345A CN201910422367.5A CN201910422367A CN111982345A CN 111982345 A CN111982345 A CN 111982345A CN 201910422367 A CN201910422367 A CN 201910422367A CN 111982345 A CN111982345 A CN 111982345A
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- laser
- optical fiber
- light
- light path
- lens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Abstract
The invention relates to a non-contact optical fiber point thermometer. A non-contact optical fiber point thermometer comprises a light receiving matrix, and an objective lens, a light splitting plate, an optical fiber, a detector and a sighting device which are arranged in the light receiving matrix; the optical fiber is connected with the detector, and the objective lens, the light splitting plate, the detector and the optical fiber form a measuring light path of the point thermometer; the sight includes a laser whose laser aiming light path transmits through a light passing plate toward an objective lens. The non-contact optical fiber point temperature instrument realizes that a measuring light path is coaxial with the optics of guiding laser, can accurately determine a measuring position through the laser, improves the measuring accuracy, and has simple structure and more convenient installation and use.
Description
Technical Field
The invention relates to a non-contact optical fiber point thermometer.
Background
The non-contact type temperature measuring instrument is widely applied to the industries of ferrous metallurgy, forging processing, metal heat treatment, solar photovoltaic and the like. However, the non-contact type thermometers on the market have some problems which need to be solved urgently, including inaccurate regional temperature measurement and incapability of accurate measurement; the measurement value is sensitive to the distance between the object to be measured and the temperature measuring instrument, which causes difficulty in the test process.
Patent document with publication number CNA discloses a point temperature measuring instrument with a dual-optical-path aiming system, which comprises a light receiving device and an optical signal analyzing and processing device connected with the light receiving device through signals, wherein the light receiving device comprises a light receiving base, a first optical path channel and a second optical path channel which are arranged in the light receiving base, a light receiving component matched with the near optical end of the first optical path channel, a telescope matched with the second optical path channel, and an optical signal analyzing and processing device fixed with the outlet end of the first optical path channel through an optical fiber chuck. The sighting system of this patent passes through the telescope and realizes, and the structure is complicated, and needs aim through people's eye, and the use limitation is big.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a non-contact optical fiber thermometer, which realizes optical coaxiality of a measurement light path and a guide laser, can accurately determine a measurement position by laser, improves measurement accuracy, and has a simple structure and convenient installation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a non-contact optical fiber point thermometer comprises a light receiving matrix, and an objective lens, a light splitting plate, an optical fiber, a detector and a sighting device which are arranged in the light receiving matrix; the optical fiber is connected with the detector, and the objective lens, the light splitting plate, the detector and the optical fiber form a measuring light path of the point thermometer; the method is characterized in that: the sight includes a laser whose laser aiming light path transmits through a light passing plate toward an objective lens.
Preferably, the sighting device further comprises a laser sighting telescope, and the laser sighting telescope is arranged on the emission end of the laser device.
Preferably, the sighting device further comprises a laser aiming light path mounting frame, the laser aiming light path mounting frame is connected to the light receiving base body, and the laser device and the laser sighting telescope are mounted on the laser aiming light path mounting frame.
Preferably, a laser mounting rack is fixed in the laser aiming light path mounting rack, and the laser is arranged on the laser mounting rack; the laser sighting telescope is installed in the laser sighting light path installation rack through a laser sighting telescope check ring.
Preferably, the reflection angle of the spectroscopic plate is 45 °.
Preferably, the spectroscope is mounted in the light receiving substrate through a spectroscope mounting bracket.
Preferably, the objective lens is mounted in the light receiving substrate through an objective lens retaining ring.
Preferably, a protective lens is attached to a front end of the objective lens.
Preferably, the front end of the light receiving substrate is connected with a protective lens mounting frame, and the protective lens is fixed in the protective lens mounting frame through a protective lens retainer ring.
The invention adopts the technical scheme, which relates to a non-contact optical fiber point thermometer, wherein a sighting device in the non-contact optical fiber point thermometer comprises a laser, and a laser aiming light path of the laser penetrates through a light passing plate and faces to an objective lens. By adopting the technical scheme, the point temperature instrument can accurately determine the measurement position through laser, realize the optical coaxiality of a measurement light path and guide laser, improve the measurement accuracy, and has simple structure and convenient installation. Compared with a telescope aiming mode adopted in the traditional structure, the mode does not need to be aligned by naked eyes, and is more convenient to use.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
In the figure: the optical fiber detection device comprises a protective lens retainer ring 1, a protective lens mounting frame 2, a protective lens 3, an objective lens retainer ring 4, an objective lens 5, a light receiving base body 6, a light splitter mounting frame 7, a light splitter 8, light splitter mounting screws 9, a laser aiming light path mounting frame 10, a laser 11, a laser mounting frame 12, laser mounting screws 13, a laser sighting telescope 14, a laser aiming telescope retainer ring 15, an optical fiber 16, an optical fiber mounting chuck 17 and a detector 18.
Detailed Description
Preferred embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
A non-contact optical fiber point thermometer shown in fig. 1 comprises a light receiving substrate 6, and an objective lens 5, a spectroscope 8, an optical fiber 16, a detector 18 and a collimator, which are arranged in the light receiving substrate 6. The optical fiber 16 is connected with the detector 18, and the objective lens 5, the spectroscope 8, the detector 18 and the optical fiber 16 form a measuring light path of the point thermometer. Wherein, adopt spectrometer board mounting screw 9 to be fixed with spectrometer board mounting bracket 7 in the light receiving base member 6, the spectrometer board 8 passes through spectrometer board mounting bracket 7 to be installed in light receiving base member 6, and the reflection angle of spectrometer board 8 is 45, makes the light redirecting that gets into. The objective lens 5 is mounted on a positioning step in the light receiving base body 6 via an objective lens retaining ring 4. The front end of the objective lens 5 is provided with a protective lens 3, specifically, the front end of the light receiving base body 6 is connected with a protective lens mounting frame 2, and the protective lens 3 is fixed in the protective lens mounting frame 2 through a protective lens retainer ring 1. An upper light path channel and a lower light path channel are arranged in the light receiving base body 6, the protective lens 3, the objective lens 5 and the light splitting plate 8 are positioned in the upper light path channel, the wave detector 18 and the optical fiber 16 are positioned in the lower light path channel, and the optical fiber 16 is connected to the wave detector 18 through an optical fiber mounting chuck 17, so that stable, reliable and consistent receiving light is ensured.
The sighting device comprises a laser 11, a laser sighting telescope 14 and a laser sighting light path mounting rack 10, wherein the laser sighting light path mounting rack 10 is connected to the light receiving base body 6, and the laser 11 and the laser sighting telescope 14 are mounted on the laser sighting light path mounting rack 10. A laser mounting frame 12 is fixed in the laser aiming light path mounting frame 10, and the laser 11 is arranged on the laser mounting frame 12. The laser sighting telescope 14 is installed in the laser sighting light path mounting rack 10 through a laser sighting telescope retainer ring 15. The laser sighting telescope 14 is arranged on the emitting end of the laser 11, and the laser of the laser 11 is transmitted to the objective 5 through the beam splitter 8 by the laser sighting telescope. The laser sighting telescope, the beam splitter and the objective lens are combined to form a laser collimation optical system.
The operation of the non-contact type point temperature gauge will be described.
In the measuring light path of the point thermometer, after entering the point thermometer, light firstly enters an upper light path channel in a light receiving substrate through an objective lens, then enters a lower light path channel of the light receiving substrate after reaching a light splitting plate and being reflected, enters an optical fiber channel through a detector, and enters an optical signal analysis processing device through the optical fiber channel; in the laser aiming light path, laser emitted by a laser enters a light path channel formed by a light receiving base body and a laser aiming mounting frame after the action of a laser aiming lens, and then acts on an object after passing through an objective lens. The laser aiming light path enables the laser guiding light path and the measuring light path to be superposed and coaxial, thereby realizing the purpose of coaxially guiding light to guide and aim at a measured object.
The technical scheme has the following beneficial effects:
1. through the point thermometer measuring light path formed by the objective lens, the light splitting plate, the detector and the like and the subsequent optical signal analysis processing device, the measuring accuracy is improved, the condition of the measured object is conveniently and truly reflected, the temperature measuring result is insensitive to the distance between the measured object and the temperature measuring instrument, and the temperature measuring operation is convenient.
2. Through the point temperature appearance laser sighting light path that constitutes such as objective, beam splitter, laser sight, laser instrument, realized measuring the light path and guide the optics of laser coaxial, can confirm the measuring position through laser accuracy, improve the measuring accuracy degree, and the structure is succinct, and it is more convenient to install and use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A non-contact optical fiber point thermometer comprises a light receiving base body (6), an objective lens (5), a light splitting plate (8), an optical fiber (16), a detector (18) and a sighting device, wherein the objective lens (5), the light splitting plate (8), the optical fiber (16) and the detector are arranged in the light receiving base body (6); the optical fiber (16) is connected with the detector (18), and the objective lens (5), the beam splitter plate (8), the detector (18) and the optical fiber (16) form a measuring light path of the point thermometer; the method is characterized in that: the sighting device comprises a laser (11) and a laser sighting lens (14), and the laser penetrates through the light splitting plate (8) through the laser sighting lens and is emitted to the objective lens (5).
2. The non-contact optical fiber thermometer according to claim 1, wherein: the sighting device also comprises a laser sighting lens (14), and the laser sighting lens (14) is arranged on the emission end of the laser (11).
3. A non-contact optical fiber thermometer according to claim 1 or 2, wherein: the sighting device further comprises a laser aiming light path mounting rack (10), the laser aiming light path mounting rack (10) is connected to the light receiving base body (6), and a laser device (11) and a laser sighting telescope (14) are mounted on the laser aiming light path mounting rack (10).
4. A non-contact optical fiber thermometer according to claim 3, wherein: a laser mounting rack (12) is fixed in the laser aiming light path mounting rack (10), and a laser (11) is arranged on the laser mounting rack (12); the laser sighting telescope (14) is installed in the laser sighting light path installation rack (10) through a laser sighting telescope retainer ring (15).
5. The non-contact optical fiber thermometer according to claim 1, wherein: the reflection angle of the light splitting plate (8) is 45 degrees.
6. The non-contact optical fiber thermometer according to claim 5, wherein: the light splitting plate (8) is arranged in the light receiving base body (6) through a light splitting plate mounting frame (7).
7. The non-contact optical fiber thermometer according to claim 1, wherein: the objective (5) is mounted in the light-receiving base body (6) by means of an objective collar (4).
8. A non-contact optical fiber thermometer according to claim 1 or 7, wherein: and a protective lens (3) is arranged at the front end of the objective lens (5).
9. The non-contact optical fiber thermometer according to claim 8, wherein: the front end of the light receiving base body (6) is connected with a protective lens mounting frame (2), and the protective lens (3) is fixed in the protective lens mounting frame (2) through a protective lens retainer ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422367.5A CN111982345A (en) | 2019-05-21 | 2019-05-21 | Non-contact optical fiber point temperature instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422367.5A CN111982345A (en) | 2019-05-21 | 2019-05-21 | Non-contact optical fiber point temperature instrument |
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| CN111982345A true CN111982345A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910422367.5A Pending CN111982345A (en) | 2019-05-21 | 2019-05-21 | Non-contact optical fiber point temperature instrument |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19528590A1 (en) * | 1995-08-03 | 1997-02-06 | Raytek Gmbh | Temperature measuring device |
| EP1065484A2 (en) * | 1999-07-02 | 2001-01-03 | Milton Bernard Hollander | Measuring or treatment instrument with laser sighting |
| CN102155993A (en) * | 2010-12-28 | 2011-08-17 | 热映光电股份有限公司 | Laser aiming device of radiation thermometer |
| CN202195887U (en) * | 2011-08-16 | 2012-04-18 | 武汉迪凯光电科技有限公司 | Accurate aiming infrared thermometer |
| CN102735345A (en) * | 2011-04-12 | 2012-10-17 | 无锡瑞蓝思科技有限公司 | Optical path structure of optical infrared thermometer |
| CN103776548A (en) * | 2014-02-14 | 2014-05-07 | 丹纳赫（上海）工业仪器技术研发有限公司 | Infrared temperature measurement meter and method for measuring temperature of energy area |
| CN107702803A (en) * | 2017-10-16 | 2018-02-16 | 国网浙江嵊州市供电有限公司 | A kind of infrared point temperature instrument |
-
2019
- 2019-05-21 CN CN201910422367.5A patent/CN111982345A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19528590A1 (en) * | 1995-08-03 | 1997-02-06 | Raytek Gmbh | Temperature measuring device |
| EP1065484A2 (en) * | 1999-07-02 | 2001-01-03 | Milton Bernard Hollander | Measuring or treatment instrument with laser sighting |
| CN102155993A (en) * | 2010-12-28 | 2011-08-17 | 热映光电股份有限公司 | Laser aiming device of radiation thermometer |
| CN102735345A (en) * | 2011-04-12 | 2012-10-17 | 无锡瑞蓝思科技有限公司 | Optical path structure of optical infrared thermometer |
| CN202195887U (en) * | 2011-08-16 | 2012-04-18 | 武汉迪凯光电科技有限公司 | Accurate aiming infrared thermometer |
| CN103776548A (en) * | 2014-02-14 | 2014-05-07 | 丹纳赫（上海）工业仪器技术研发有限公司 | Infrared temperature measurement meter and method for measuring temperature of energy area |
| CN107702803A (en) * | 2017-10-16 | 2018-02-16 | 国网浙江嵊州市供电有限公司 | A kind of infrared point temperature instrument |
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