CN220230728U - Measuring device for wavelength corresponding to black body radiation monochromatic radiance maximum value - Google Patents
Measuring device for wavelength corresponding to black body radiation monochromatic radiance maximum value Download PDFInfo
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- CN220230728U CN220230728U CN202322023108.XU CN202322023108U CN220230728U CN 220230728 U CN220230728 U CN 220230728U CN 202322023108 U CN202322023108 U CN 202322023108U CN 220230728 U CN220230728 U CN 220230728U
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- 230000005457 Black-body radiation Effects 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 7
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of monitoring of blackbody radiation characteristics, in particular to a measuring device for wavelengths corresponding to the maximum value of the monochromatic radiance of blackbody radiation, which comprises a converging lens, an incident slit, a first concave reflecting mirror, a plane reflecting mirror, a triangular prism, a rotary drum, a second concave reflecting mirror, an emergent slit and an optical power meter. The utility model does not use a thermocouple to measure the blackbody radiation energy, and has the advantage of high accuracy of blackbody radiation energy measurement.
Description
Technical Field
The utility model relates to the technical field of blackbody radiation characteristic monitoring, in particular to a measuring device for wavelengths corresponding to the maximum value of monochromatic radiance of blackbody radiation.
Background
Blackbody radiation refers to electromagnetic radiation emitted by a blackbody in thermodynamic equilibrium. Planck's law describes the distribution of blackbody radiant energy by wavelength. Measuring the relationship between blackbody radiation energy and wavelength, particularly the wavelength corresponding to the maximum of the monochromatic radiance of the blackbody radiation, is important for calibrating the light source and selecting an appropriate light source for a particular application. For example, researchers often choose or adjust the maximum value of the monochromatic irradiance of the light source at the wavelength to which the photodetector is most sensitive by adjusting the operating temperature of the light source to achieve optimal optical effects.
In the prior art, when measuring the monochromatic emittance of blackbody radiation, a pyroelectric detector is used, which converts a thermal signal into an electrical signal based on the thermal effect of the optical radiation. Because the received electrical signal is weak, an amplification circuit is often required to assist. In the measurement of pyroelectric detectors, heat build-up and thermal noise can affect the accuracy of the measurement. Therefore, it is of great importance to explore a new method of black body radiation monochromatic radiance.
Disclosure of Invention
In order to solve the problems, the utility model provides a measuring device for the wavelength corresponding to the maximum value of the monochromatic radiance of black body radiation, which comprises a converging lens, an incident slit, a first concave mirror, a plane mirror, a prism, a rotating drum, a second concave mirror, an emergent slit and an optical power meter, wherein light of the black body radiation enters one side of the incident slit after converging through the converging lens, is reflected by the first concave mirror and the plane mirror after exiting from the other side of the incident slit, irradiates one side of the prism, irradiates the second concave mirror after refracting through the prism, enters one side of the emergent slit after reflecting through the second concave mirror, and enters the optical power meter after exiting from the other side of the emergent slit; the triangular prism is fixed on the rotary drum, and the plane reflecting mirror and the triangular prism are fixed together.
The utility model relates to a Woods dispersion system based on wavelength measurement, which comprises two concave reflectors, a plane reflector and a refractive prism, wherein the plane reflector and the prism are fixed together to rotate, the position can be operated by a drum handle, and the reading of a rotating drum has a corresponding relation with the wavelength. In the device, the optical power meter measures the intensity of light with different wavelengths, a thermoelectric detector is not used, thermal stacks and thermal noise are not generated in the device, and the device has the advantage of high measurement accuracy.
Further, the entrance slit and the exit slit have a width greater than 1 micron and less than 2 microns.
Further, the triangular prism is an equilateral prism.
Further, a planar mirror is fixed to the bottom side of the equilateral prism.
Further, the area of the base of the triangular prism is larger than the area of the fixed part of the planar mirror and the base of the triangular prism.
Further, the base of the triangular prism is fixed to the rotating drum.
The utility model has the beneficial effects that:
the utility model does not use a thermocouple to measure the blackbody radiation energy, does not generate thermal stack and thermal noise, and has the advantage of high accuracy of blackbody radiation energy measurement. In addition, the utility model is based on the Watz Woods dispersion system and has the advantage of simple operation.
By combining the effects, the method has good application prospect in the technical field of blackbody radiation characteristic monitoring.
The present utility model will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a measurement device for measuring the wavelength corresponding to the maximum value of the monochromatic radiance of a black body.
In the figure: 1. a converging lens; 2. an entrance slit; 3. a first concave mirror; 4. a planar mirror; 5. a triangular prism; 6. rotating a drum; 7. a second concave mirror; 8. an exit slit; 9. an optical power meter.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and examples.
The utility model provides a measuring device for a wavelength corresponding to a black body radiation monochromatic radiance maximum value, which is shown in figure 1 and comprises a converging lens 1, an incident slit 2, a first concave reflecting mirror 3, a plane reflecting mirror 4, a triangular prism 5, a rotary drum 6, a second concave reflecting mirror 7, an emergent slit 8 and an optical power meter 9. Wherein, the triple prism 5 is an equilateral prism; the width of the entrance slit 2 and the exit slit 8 is larger than 1 micrometer and smaller than 2 micrometers.
When measuring black body radiation monochromatic radiance, the present utility model is placed near a black body light source. The light radiated by the black body is converged by the converging lens 1, enters one side of the entrance slit 2, exits from the other side of the entrance slit 2, is reflected by the first concave mirror 3 and the plane mirror 4 in sequence, irradiates one side of the prism 5, is refracted by the prism 5, irradiates on the second concave mirror 7, enters one side of the exit slit 8 after being reflected by the second concave mirror 7, and enters the optical power meter 9 after exiting from the other side of the exit slit 8. The triangular prism 5 is fixed on the rotating drum 6, and the plane reflecting mirror 4 and the triangular prism 5 are fixed together, and the triangular prism 5 and the plane reflecting mirror 4 are rotated by a handle of the rotating drum 6 to adjust an incident angle of light incident on the triangular prism 5. The wavelength of the light irradiated onto the exit slit 8 is changed by rotating the drum 6, and the intensity of the light of different wavelengths is measured by the optical power meter 9, thereby obtaining the black body radiation monochromatic radiance.
After the monochromatic radiance of different wavelengths is measured, the wavelength corresponding to the maximum value of the monochromatic radiance of the blackbody radiation can be identified.
Preferably, the plane mirror 4 is fixed on the bottom side of the equilateral prism, and the area of the bottom side of the triangular prism 5 is larger than the area of the fixed parts of the plane mirror 4 and the bottom side of the triangular prism 5, and the bottom side of the triangular prism 5 is fixed on the rotating drum 6. That is, a portion of the plane mirror 4 is fixed on the bottom side of the equilateral prism, and the other portion of the plane mirror 4 protrudes out of the equilateral prism; since the bottom side area of the equilateral prism is larger than the area of the plane mirror 4 and the bottom side fixing portion of the equilateral prism, the bottom side of the equilateral prism has a remaining area for its fixing to the rotating drum 6. Since the equilateral prism is fixed to the rotating drum 6 and the equilateral prism is large in size, the equilateral prism can be firmly fixed to the rotating drum 6.
In summary, the present utility model provides a device for measuring a wavelength corresponding to a maximum value of a monochromatic radiance of a blackbody radiation, which includes a converging lens 1, an entrance slit 2, a first concave mirror 3, a plane mirror 4, a prism 5, a rotating drum 6, a second concave mirror 7, an exit slit 8, and an optical power meter 9. Light radiated by the black body is converged by the converging lens 1, enters one side of the entrance slit 2, exits from the other side of the entrance slit 2, sequentially reflects by the first concave mirror 3 and the plane mirror 4, irradiates one side of the triple prism 5, refracts by the triple prism 5, irradiates on the second concave mirror 7, enters one side of the exit slit 8 after being reflected by the second concave mirror 7, and enters the optical power meter 9 after exiting from the other side of the exit slit 8; the triangular prism 5 is fixed on the rotating drum 6, and the plane reflecting mirror 4 and the triangular prism 5 are fixed together. According to the utility model, the measurement of the wavelength is based on the Watz Woods system, different wavelengths are identified through the corresponding relation between the reading of the rotary drum wheel 6 and the wavelength, the intensity of the light with different wavelengths is measured by the optical power meter 9, a thermoelectric detector is not used, no thermal stack and thermal noise are generated in the device, the advantages of high measurement accuracy are achieved, and the method has a good application prospect in the technical field of blackbody radiation characteristic monitoring.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Claims (6)
1. The measuring device is characterized by further comprising a first concave mirror, a plane mirror, a triple prism, a rotary drum, a second concave mirror, an emergent slit and an optical power meter, wherein light of the blackbody radiation enters one side of the incident slit after being converged by the converging lens, is reflected by the first concave mirror and the plane mirror in sequence after exiting from the other side of the incident slit, irradiates one side of the triple prism, irradiates the second concave mirror after being refracted by the triple prism, enters one side of the emergent slit after being reflected by the second concave mirror, and enters the optical power meter after exiting from the other side of the emergent slit; the triangular prism is fixed on the rotary drum, and the plane reflecting mirror and the triangular prism are fixed together.
2. The black body radiation monochromatic radiation maximum corresponding wavelength measuring apparatus as claimed in claim 1, wherein: the width of the entrance slit and the exit slit is greater than 1 micron and less than 2 microns.
3. The black body radiation monochromatic radiation maximum corresponding wavelength measuring apparatus as claimed in claim 2, wherein: the triangular prism is an equilateral prism.
4. A black body radiation monochromatic radiation maximum corresponding wavelength measuring apparatus as claimed in claim 3, wherein: the plane reflecting mirror is fixed on the bottom edge of the equilateral prism.
5. The black body radiation monochromatic radiation maximum corresponding wavelength measuring apparatus as claimed in claim 4, wherein: the area of the bottom edge of the triangular prism is larger than the area of the plane reflecting mirror and the fixed part of the bottom edge of the triangular prism.
6. The black body radiation monochromatic radiation maximum corresponding wavelength measuring apparatus as claimed in claim 5, wherein: the bottom edge of the triangular prism is fixed on the rotary drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322023108.XU CN220230728U (en) | 2023-07-28 | 2023-07-28 | Measuring device for wavelength corresponding to black body radiation monochromatic radiance maximum value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322023108.XU CN220230728U (en) | 2023-07-28 | 2023-07-28 | Measuring device for wavelength corresponding to black body radiation monochromatic radiance maximum value |
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| Publication Number | Publication Date |
|---|---|
| CN220230728U true CN220230728U (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322023108.XU Active CN220230728U (en) | 2023-07-28 | 2023-07-28 | Measuring device for wavelength corresponding to black body radiation monochromatic radiance maximum value |
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| Country | Link |
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| CN (1) | CN220230728U (en) |
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2023
- 2023-07-28 CN CN202322023108.XU patent/CN220230728U/en active Active
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