CN205537979U - Dual waveband continuous spectrum developments radiation temperature measuring device - Google Patents
Dual waveband continuous spectrum developments radiation temperature measuring device Download PDFInfo
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- CN205537979U CN205537979U CN201620036291.4U CN201620036291U CN205537979U CN 205537979 U CN205537979 U CN 205537979U CN 201620036291 U CN201620036291 U CN 201620036291U CN 205537979 U CN205537979 U CN 205537979U
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Abstract
The utility model provides a dual waveband continuous spectrum developments radiation temperature measuring device. Including quartz lens, effectively smooth fence, focal plane slit, collimating mirror, reflection grating, the positive one -level of diffraction formation of image objective, linear array photoelectric device, diffraction burden one -level formation of image objective and display system, set up an effective light fence before the quartz lens, the back on effective light fence sets gradually a focal plane slit, a collimating mirror and a reflection grating, reflection grating's emitting light path is diffraction normal emergence light path and diffraction burden emitting light path two tunnel, sets gradually the formation of image of the positive one -level of a diffraction objective, a filter plate and a linear array photoelectric device in the diffraction normal emergence light path, the formation of image of a diffraction burden one -level objective, a boron glass filter plate and a linear array photoelectric device set gradually on the diffraction burden emitting light path, linear array photoelectric device all connects display system. The utility model discloses a device, make full use of the chromatic dispersion on the positive and negative both sides of grating spectrum for the temperature of the radiation source of surveying is more accurate.
Description
Technical field
This utility model relates to the field of measuring technique of radiation temperature, particularly relates to a kind of two waveband continuous spectrum dynamic radiant thermometric device.
Background technology
Existing radiant thermometric technology, in terms of actual thermometric, generally can be divided into actual temperature, brightness temperature and the measurement of color temperature three aspect:
1. actual temperature is measured, it is necessary to contacts and reaches thermal balance, therefore be only possible contact measurement and steady state measurement, but sometimes require that noncontact or transient measuring, additionally for the thermocouple of high temperature measurement particularly solution temperature measurement, be all disposable consumption, not only temperature measuring area is limited, and cost consumption is the biggest.
2. brightness temperature is measured, noncontact, but generally only takes a narrow spectrum interval, the black matrix with it with same brightness compares, this is a currently used most common class, if there is the additional absorption of the lime-ash etc. on steam, smog, dust or smelting furnace surface in light path when measuring, then can introduce bigger error.
3. color temperature is measured, typically use duochrome method (or many color methods) by two (or three, four) narrow-cut filters, compare with the trend of two (or multiple) radiation values recording with blackbody radiance curve, so that it is determined that " color temperature " of tested radiation source, the certainty of measurement of this measuring method is low, it is impossible to meet the requirement of high-acruracy survey.
These thermometric modes, only determine the temperature of radiant body with the radiation spectrum of visible light wave range, lost many information of non-visible radiation, and only meter and " radiation temperature " of wider range radiation spectrum, could preferably determine the temperature of radiant body.
Summary of the invention
Main purpose of the present utility model is to solve problems of the prior art, a kind of another first-order spectrum utilizing radiant body grating dispersion is provided to do the information gathering of second band (near-infrared), and in positive one-level is composed, detect 460nm～900nm radiation, in negative one level is composed, detect the two waveband continuous spectrum dynamic radiant thermometric device of the radiation of 950nm～1700nm.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of two waveband continuous spectrum dynamic radiant thermometric device, described two waveband continuous spectrum dynamic radiant thermometric device includes quartz lens, effective stop, focal plane slit, collimating mirror, reflecting grating, diffraction positive one-level image-forming objective lens, linear array photoelectric device, diffraction negative one level image-forming objective lens and display system, wherein
One effective stop is set before described quartz lens, a focal plane slit disposed behind of described effective stop, a collimating mirror disposed behind of described focal plane slit, in the rear light path of described collimating mirror, a reflecting grating is set, the emitting light path of described reflecting grating is diffraction normal emergence light path and diffraction bears emitting light path two-way, one diffraction positive one-level image-forming objective lens is set in diffraction normal emergence light path, in the rear light path of described diffraction positive one-level image-forming objective lens, a linear array photoelectric device is set, before described linear array photoelectric device, a filter plate is set, and this linear array photoelectric device connects display system；Described diffraction is born and is arranged a diffraction negative one level image-forming objective lens on emitting light path, in the rear light path of described diffraction negative one level image-forming objective lens, a linear array photoelectric device is set, one boron glass filter plate is set before described linear array photoelectric device, and this linear array photoelectric device connects display system.
Further, to be set to cambered surface reflective for described collimating mirror.
Further, to be disposed as cambered surface reflective for described image-forming objective lens.
Further, the filter plate in described diffraction normal emergence light path is set to end 460nm following range of spectrum.
Further, described diffraction bear the boron glass filter plate on emitting light path be set to end 950nm following range of spectrum.
Further, the two wave band continuous spectrums that described display system is set to containing two linear array each unit sensitivity corrections process and radiation temperature.
This utility model has the advantage that with good effect: the two waveband continuous spectrum dynamic radiant thermometric device that this utility model provides, use structure and the two waveband continuous spectrum dynamic radiant thermometric method of radiation thermometer simultaneously, make full use of the positive and negative both sides dispersion of grating spectrum, compare with black matrix with more broadband radiation spectrum, and " the random sensitivity " in the two each unit making of group pattern device is calibrated one by one, thus reach the function of Accurate Determining radiation curve.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model；
In figure: 1-quartz lens, 2-effective stop, 3-focal plane slit, 4-collimating mirror, 5-reflecting grating, 6-diffraction positive one-level image-forming objective lens, 7-filter plate, 8-linear array photoelectric device, 9-diffraction negative one level image-forming objective lens, 10-boron glass filter plate, 11-display system.
Detailed description of the invention
In order to be better understood from this utility model, below in conjunction with specific embodiments and the drawings, this utility model is conducted further description.
As shown in Figure 1, a kind of two waveband continuous spectrum dynamic radiant thermometric device, including quartz lens 1, effective stop 2, focal plane slit 3, collimating mirror 4, reflecting grating 5, diffraction positive one-level image-forming objective lens 6, linear array photoelectric device 8, diffraction negative one level image-forming objective lens 9 and display system 11, wherein
One effective stop 2 is set before quartz lens 1, a focal plane slit 3 disposed behind of effective stop 2, a collimating mirror 4 disposed behind of focal plane slit 3, one reflecting grating 5 is set in the rear light path of collimating mirror 4, the emitting light path of reflecting grating 5 is diffraction normal emergence light path and diffraction bears emitting light path two-way, one diffraction positive one-level image-forming objective lens 6 is set in diffraction normal emergence light path, in the rear light path of diffraction positive one-level image-forming objective lens 6, a linear array photoelectric device 8 is set, one filter plate 7 is set before linear array photoelectric device 8, and this linear array photoelectric device connects display system 11；Diffraction is born and is arranged a diffraction negative one level image-forming objective lens 9 on emitting light path, in the rear light path of diffraction negative one level image-forming objective lens 9, a linear array photoelectric device 8 is set, one boron glass filter plate 10 is set before linear array photoelectric device 8, and this linear array photoelectric device 8 connects display system 11.
It is reflective that collimating mirror 4 is set to cambered surface.
It is reflective that image-forming objective lens is disposed as cambered surface.
Filter plate 7 in diffraction normal emergence light path is set to end 460nm following range of spectrum.
Diffraction is born the boron glass filter plate 10 on emitting light path and is set to end 950nm following range of spectrum.
The two wave band continuous spectrums that display system 11 is set to containing two linear array each unit sensitivity corrections process and radiation temperature.
The two waveband continuous spectrum dynamic radiant thermometric device using this utility model to provide, can be compared with black matrix by more broadband radiation spectrum, so that the temperature determined more convergence " radiation temperature ".During work, the temperature radiation light of surveyed radiation source sequentially passes through quartz lens 1, effective stop 2 and focal plane slit 3, the reflection of collimated mirror 4, light path is incident to reflecting grating 5, being divided into two-way outgoing by reflecting grating 5, a road is diffraction normal emergence light path, and the diffracted positive one-level image-forming objective lens 6 of this light path reflects, and then by the filtering of filter plate 7, gained optical information is fed back to display system 11 by linear array photoelectric device 8；Another road is that diffraction bears emitting light path, this light path diffracted negative one level image-forming objective lens 9 reflects, and then by the filtering of boron glass filter plate 10, gained optical information is fed back to display system 11 by linear array photoelectric device 8, through two wave band continuous spectrum processors of two linear array each unit sensitivity corrections, finally shown radiation temperature by display system 11.
Above embodiment of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model.All impartial changes made according to this utility model scope and improvement etc., within all should still belonging to this patent covering scope.
Claims (6)
1. a two waveband continuous spectrum dynamic radiant thermometric device, it is characterised in that: described two waveband is continuous
Spectrum dynamic radiant thermometric device includes quartz lens, effective stop, focal plane slit, collimating mirror, reflection light
Grid, diffraction positive one-level image-forming objective lens, linear array photoelectric device, diffraction negative one level image-forming objective lens and display system,
Wherein,
One effective stop is set before described quartz lens, a focal plane slit disposed behind of described effective stop,
A collimating mirror disposed behind of described focal plane slit, the rear light path of described collimating mirror arranges a reflecting grating,
The emitting light path of described reflecting grating is diffraction normal emergence light path and diffraction bears emitting light path two-way, and diffraction is just
One diffraction positive one-level image-forming objective lens, the rear light path of described diffraction positive one-level image-forming objective lens are set on emitting light path
On a linear array photoelectric device is set, a filter plate, and this linear array are set before described linear array photoelectric device
Photoelectric device connects display system；Described diffraction is born and is arranged a diffraction negative one level image-forming objective lens on emitting light path,
In the rear light path of described diffraction negative one level image-forming objective lens, a linear array photoelectric device, described linear array phototube are set
One boron glass filter plate is set before part, and this linear array photoelectric device connects display system.
Two waveband continuous spectrum dynamic radiant thermometric device the most according to claim 1, it is characterised in that:
It is reflective that described collimating mirror is set to cambered surface.
Two waveband continuous spectrum dynamic radiant thermometric device the most according to claim 1, it is characterised in that:
It is reflective that described image-forming objective lens is set to cambered surface.
Two waveband continuous spectrum dynamic radiant thermometric device the most according to claim 1, it is characterised in that:
Filter plate in described diffraction normal emergence light path is set to end 460nm following range of spectrum.
Two waveband continuous spectrum dynamic radiant thermometric device the most according to claim 1, it is characterised in that:
Described diffraction is born the boron glass filter plate on emitting light path and is set to end 950nm following range of spectrum.
Two waveband continuous spectrum dynamic radiant thermometric device the most according to claim 1, it is characterised in that:
The two wave band continuous spectrums that described display system is set to containing two linear array each unit sensitivity corrections process and spoke
Penetrate temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620036291.4U CN205537979U (en) | 2016-01-14 | 2016-01-14 | Dual waveband continuous spectrum developments radiation temperature measuring device |
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| CN201620036291.4U CN205537979U (en) | 2016-01-14 | 2016-01-14 | Dual waveband continuous spectrum developments radiation temperature measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525246A (en) * | 2017-01-24 | 2017-03-22 | 河北工业大学 | Fourier transformation optical pyrometer |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525246A (en) * | 2017-01-24 | 2017-03-22 | 河北工业大学 | Fourier transformation optical pyrometer |
| CN106525246B (en) * | 2017-01-24 | 2019-05-03 | 河北工业大学 | Fourier transformation pyrometer instrument |
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