CN218865762U - Transmission measuring device - Google Patents

Transmission measuring device Download PDF

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Publication number
CN218865762U
CN218865762U CN202222672029.7U CN202222672029U CN218865762U CN 218865762 U CN218865762 U CN 218865762U CN 202222672029 U CN202222672029 U CN 202222672029U CN 218865762 U CN218865762 U CN 218865762U
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light source
sample
integrating sphere
measuring device
moving platform
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CN202222672029.7U
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黄艳
潘建根
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Hangzhou Everfine Photo E Info Co Ltd
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Hangzhou Everfine Photo E Info Co Ltd
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Abstract

The utility model discloses a transmission measuring device, including white light source, integrating sphere, spectral measurement device and year appearance moving platform, be equipped with entrance and detection mouth on the integrating sphere wall, spectral measurement device and detection mouth optical coupling carry an appearance moving platform to locate between the entrance of white light source and integrating sphere; light beams emitted by the white light source penetrate through a sample arranged on the sample-carrying moving platform, enter the integrating sphere through an entrance port of the integrating sphere, are fully mixed in the integrating sphere, then are emitted from a detection port of the integrating sphere and are received by the spectrum measuring device. The integrating sphere wall has a uniform diffuse reflective coating. The sample-carrying moving platform can adjust the position of the sample, so that the white light source is incident to different areas of the sample, and the transmission distribution and the area average transmittance of the sample are measured. The utility model discloses simple structure, convenient to use, applicable material transmission characteristic measurement that has the knurling style in photovoltaic knurling glass, for the decoration knurling glass, greenhouse knurling glass etc..

Description

Transmission measuring device
Technical Field
The utility model relates to an optical measurement technical field, concretely relates to transmission measuring device.
Background
The embossed glass is a flat glass manufactured by adopting a rolling method, has various patterns with different depths pressed on the surface, and is widely applied to indoor decoration and photovoltaic modules. Transmittance and haze are important parameters for evaluating the application of embossed glass, especially for photovoltaic embossed glass, and these parameters directly affect the photoelectric conversion efficiency of photovoltaic modules.
The periodic size of the embossed glass pattern is large or small. When the transmittance is measured, the pattern period of the pattern can cause great influence on measurement data, a general illumination light spot needs to be large enough and is larger than one period of printing, and when the size is integral multiple of the period, the test data with good reproducibility can be obtained, and the existing measurement device can not meet the measurement requirement.
Meanwhile, the patterned glass has good light scattering performance, when the light spot is large, the transmittance measurement needs a large integrating sphere for receiving, and along with the increase of the volume of the integrating sphere, the cost is increased, and the sensitivity of the measuring instrument is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a transmission measuring device, the problem that transparent and translucent material optical parameter measuring error is big such as knurling glass among the solution prior art is not enough to the prior art.
The utility model discloses a transmission measuring device, including white light source, integrating sphere, spectral measurement device and be used for installing sample and the appearance moving platform that carries of adjustable sample position, be equipped with entrance and detection mouth on the integrating sphere wall, spectral measurement device and detection mouth optical coupling, carry appearance moving platform and locate between the entrance of white light source and integrating sphere, the light beam that sends see through install the sample on carrying appearance moving platform, get into the integrating sphere through the entrance of integrating sphere, after fully mixing light in the integrating sphere, from the detection mouth outgoing of integrating sphere, received by spectral measurement device. The integrating sphere wall has a uniform diffuse reflective coating. The sample-carrying mobile platform can adjust the position of the sample, so that the white light source is incident to different areas of the sample to realize the measurement of the transmission distribution and the area average transmittance of the sample.
The utility model discloses use white light source and carry a kind moving platform, can effectively measure the spectrum transmittance in a plurality of regions in the sample stamp cycle, different cycle size can select the removal that carries a kind moving platform step-by-step and the scope in a flexible way, calculates and obtains average spectrum transmittance, and then obtains the spectrum transmittance and the spectrum haze of different style stamps to obtain optical performance parameters such as solar light transmittance, visible light transmittance under the different illumination observation conditions through calculating. Compare with traditional haze measurement scheme, the utility model discloses measurement process is simple and convenient, and measurement of efficiency is higher, and application scope is wide.
The utility model discloses can further inject and perfect through following technical measure:
as a technical scheme, the spherical wall of the integrating sphere is also provided with an exit port, and the central connecting line of the entrance port and the exit port passes through the spherical center of the integrating sphere; the exit port is provided with a movable white board and a light trap. The specific measurement process comprises the following steps: (1) Moving the white board to an exit port without placing a sample to be measured, and measuring the spectral radiant flux of incident light by a spectral measuring device; (2) Placing a tested sample, moving the white board to an exit port, and measuring the total transmitted light spectrum radiant flux transmitted by the tested sample through a spectrum measuring device; (3) Moving the light trap to an exit port without placing a sample to be measured, and measuring the spectral radiant flux of scattered light of the instrument through a spectral measuring device; (4) And placing a sample to be measured, moving the light trap to an exit port, and measuring the total scattered light spectral radiant flux of the sample to be measured through a spectral measurement device so as to realize spectral haze measurement and spectral transmittance measurement of the sample. Furthermore, different areas of the sample can be selected respectively for measurement according to the measurement process, so that the measurement of the average spectral transmittance in the areas is realized.
As a technical solution, in the above solution, the sample-loading moving platform is a three-dimensional moving platform. The measured sample is placed on the three-dimensional moving platform, high-precision movement and automatic control of the measured sample can be achieved, measurement operation is simplified, measurement efficiency is improved, and meanwhile accuracy and reliability of measurement results are guaranteed.
As a technical scheme, a front lens, a diaphragm and a collimating lens are sequentially arranged on an emergent light path of a white light source. The front lens can play a role in converging light beams, the diaphragm can adjust the intensity of the light beams and the illumination range of the light beams, and the collimating lens converts the light beams into parallel light again to enable the parallel light to uniformly enter a tested sample. The front lens, the diaphragm and the collimating lens are arranged between the white light source and the measured sample, so that the light shape of the light source projected to the measured sample is more uniform, and the measurement accuracy is further improved.
Further, the size of the light-passing hole of the diaphragm is continuously adjustable, or the diaphragm comprises two or more switchable diaphragms with different light-passing hole sizes. The aperture size of the diaphragm is adjusted through switching, so that incident beams with different illumination ranges and illumination intensities can be provided, and the device is further suitable for measurement and analysis of different tested samples.
As a technical solution, the white light source includes two or more light source modules and a light source switching device, each light source module generates an illumination range of different size on the sample incident surface, and the light source switching device can cut the corresponding light source into the light path by electrical switching or mechanical switching, so that the light source is incident on the sample. The light source module with a specific illumination range can be selected for transmittance measurement according to the pattern characteristics of the surface of a measured sample, and the consistency and reliability of the measurement result are ensured. Furthermore, the light source can be arranged on a closed constant temperature control device, so that the influence of temperature fluctuation on the stability of the light source is avoided, and the accuracy, consistency and reproducibility of the measurement result are further ensured.
As an implementation manner, in the above technical solution, the light source switching device includes a plurality of movable plane mirrors, and the light beam emitted by the corresponding light source module is reflected by the corresponding plane mirror and then enters the sample. The light source module with a specific illumination range can be selected according to the pattern characteristics of the surface of the sample, and the light source module is cut into a light path through the plane reflector so as to irradiate the sample to be detected.
As an implementation manner, in the above technical solution, the light source switching device includes a rotating disk, the light source modules are distributed or uniformly distributed on a circumferential surface of the rotating disk, and the rotating disk rotates to switch the light source modules, so that the light source modules in the corresponding illumination ranges emit light beams and irradiate a sample. The light source with the required light spot size can be selected for measuring the transmissivity according to the pattern characteristics of the surface of the measured sample, and the consistency and the reliability of the measuring result are ensured.
As an implementation mode, in the above technical solution, the light source switching device includes a movable conveying seat and a fixed seat, and the conveying seat is installed on the fixed seat; the light source modules are respectively arranged on the conveying seat, and the light source is conveyed through the conveying seat, so that the light source modules in the corresponding illumination ranges emit light beams and irradiate the sample. In actual measurement, a light source in a proper illumination range can be selected for measuring the transmittance according to the pattern characteristics of the surface of a sample to be measured, so that the consistency and the reliability of a measurement result are ensured.
As a technical scheme, the white light source further comprises a pulse driving device, the white light source is output through the pulse driving device, the influence of ambient light on the measurement of the measured sample can be avoided, and the accuracy of the measurement result is further ensured.
As a technical scheme, the inner wall of the integrating sphere is also provided with a reference light source. The reference light source is used for correcting the reading of the spectral measurement device, and further correcting the influence of the measured sample on the light collection rate of the integrating sphere. The specific correction process comprises the following steps: (1) Moving the white board to an emergent port without placing a sample to be measured, starting a reference light source, and measuring a reading R1 through a spectrum measuring device; (2) Placing a sample to be measured, moving the white board to an emergent port, starting a reference light source, and measuring a reading R2 through a spectrum measuring device; (3) And (4) calculating the influence of the surface reflection of the measured sample on the integrating efficiency of the integrating sphere through two readings, and further correcting the reading of the total transmission luminous flux of the sample measured by the spectrum measuring device.
The technical scheme includes that the device further comprises a beam splitter and a reference light measuring device, the beam splitter is arranged on an emergent light path of the white light source and in front of the sample-carrying mobile platform, the center of the beam splitter is overlapped with a main optical axis of the white light source, and the reference light measuring device is arranged on the emergent light path of the beam splitter. By the reference light measuring device, the spectral fluctuation of the compensation light source can be monitored, and the reliability of the measuring result is further ensured.
The utility model has the advantages that: the utility model provides a transmission measuring device, applicable in photovoltaic knurling glass, decorate with knurling glass, greenhouse with knurling glass etc. have the material transmission characteristic measurement of knurling style, it is good to have the reproducibility of whole measurement, stability is good, test speed is fast, test wave band coverage is wide, characteristics such as installation convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a transmission measurement apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another transmission measurement apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another transmission measurement apparatus provided in an embodiment of the present invention;
in the figure: 1. the device comprises a white light source, 2, an integrating sphere, 3, a sample-carrying moving platform, 4, a sample, 5, a spectrum measuring device, 6, a front lens, 7, a diaphragm, 8, a collimating lens, 9, an entrance port, 10, a detection port, 11, an exit port, 12, a white board, 13, a light trap, 14, a light source switching device, 15, a beam splitter, 16 and a reference light measuring device.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the accompanying drawings, but it should be understood by those skilled in the art that the following examples are provided for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the following embodiments without departing from the scope and spirit of the invention. The scope of protection of the invention is defined by the appended claims.
Example one
The embodiment discloses a transmission measurement device, including white light source (1), integrating sphere (2), spectral measurement device (5) and be used for installing sample and the appearance moving platform (3) that carries of adjustable sample position, be equipped with entrance port (9), detection mouth (10) and exit port (11) on integrating sphere (2) spherical wall, spectral measurement device (5) and detection mouth (10) optical coupling, integrating sphere (2) centre of sphere is crossed to the line of the center of entrance port (9) and exit port (11), it locates between white light source (1) and integrating sphere entrance port (9) to carry appearance moving platform (3). And a movable white board (12) and a light trap (13) are arranged at the exit port (11). Leading lens (6), diaphragm (7) and collimating lens (8) have set gradually along white light source (1) outgoing light path, the logical unthreaded hole size of diaphragm (7) is continuously adjustable, through the aperture size who adjusts the diaphragm, can provide different illumination zone and illumination intensity's incident beam, and then is applicable to the measurement analysis of different measured samples. The light beam emitted by the white light source (1) sequentially passes through the front lens (6), the diaphragm (7) and the collimating lens (8), penetrates through the sample (4) arranged on the sample-carrying moving platform (3), enters the integrating sphere (2) through the entrance port (9) of the integrating sphere, is fully mixed in the integrating sphere, then exits from the detection port (10) of the integrating sphere, and is received by the spectrum measuring device (5). As shown in fig. 1 and 2, the white light source includes 4 light source modules and a light source switching device (14), the light source switching device (14) is composed of a plurality of movable plane mirrors, and the corresponding light source module can be switched into the light path by electrical switching or mechanical switching, so that the light source corresponding to the illumination range corresponds to the incident sample (4). In actual measurement, a light source in a required illumination range can be selected according to the pattern characteristics of the surface of a sample to be measured to measure the transmissivity, so that the consistency and the reliability of a measurement result are ensured.
The specific measurement process comprises the following steps: (1) Moving the white board to an emergent port without placing a sample to be measured, and measuring incident light flux through a spectrum measuring device; (2) Placing a tested sample, moving the white board to the emergent port, and measuring the total transmitted luminous flux penetrating through the tested sample by using a spectrum measuring device; (3) Removing the white board from the exit port without placing the sample to be measured, and measuring the scattered luminous flux of the instrument through the spectrum measuring device; (4) And placing the sample to be measured, removing the white board from the emergent port, and measuring the total scattered luminous flux of the sample to be measured through the spectrum measuring device, thereby realizing the haze spectrometry and the spectral transmittance measurement of the sample. Furthermore, different areas of the sample can be respectively selected for measurement according to the measurement process, so that the measurement of the average transmittance of the areas is realized.
Preferably, the sample-carrying moving platform (3) is a three-dimensional moving platform. The sample (4) is placed on the three-dimensional moving platform (3), so that high-precision movement and automatic control of the sample to be measured can be realized, the measurement operation is simplified, the measurement efficiency is improved, and meanwhile, the accuracy and the reliability of the measurement result are ensured.
Preferably, the white light source (1) is output through a pulse driving device, so that the influence of ambient light on the measurement of the measured sample can be avoided, and the accuracy of the measurement result is further ensured.
Example two
The embodiment discloses a transmission measurement device, as shown in fig. 3, the transmission measurement device comprises a white light source (1), an integrating sphere (2), a spectrum measurement device (5), a sample-carrying mobile platform (3) for installing a sample and adjusting the position of the sample, and a reference light measurement device (16), wherein an entrance port (9), a detection port (10) and an exit port (11) are arranged on the spherical wall of the integrating sphere (2), the spectrum measurement device (5) is optically coupled with the detection port (10), the entrance port (9) and the exit port (11) are respectively located at two ends of the horizontal diameter of the integrating sphere (2), and the sample-carrying mobile platform (3) is arranged between the white light source (1) and the integrating sphere entrance port (9). And a movable white board (12) and a light trap (13) are arranged at the exit port (11). The device comprises a white light source (1), a reference light measuring device (16) and a control system, wherein a front lens (6), a diaphragm (7), a collimating lens (8) and a beam splitter (15) are sequentially arranged along an emergent light path of the white light source (1), the center of the beam splitter (15) is overlapped with a main optical axis of the white light source, and the reference light measuring device is arranged on a secondary light path of the beam splitter (15) and can monitor and compensate light fluctuation of the light source; the size of the light through hole of the diaphragm (7) is continuously adjustable, and incident light beams with different illumination ranges and illumination intensities can be provided by adjusting the aperture size of the diaphragm, so that the diaphragm is suitable for measurement and analysis of different tested samples.
In actual measurement, light beams emitted by the white light source (1) sequentially pass through the front lens (6), the diaphragm (7) and the collimating lens (8), penetrate through a sample (4) arranged on the sample-carrying moving platform (3), enter the integrating sphere (2) through an entrance port (9) of the integrating sphere, are fully mixed in the integrating sphere, then exit from a detection port (10) of the integrating sphere, and are received by the spectrum measuring device (5).

Claims (10)

1. The utility model provides a transmission measuring device, includes white light source (1), integrating sphere (2) and spectral measurement device (5), its characterized in that, still including the appearance moving platform (3) of carrying that is used for installing the sample and adjustable sample position, be equipped with entrance (9) and detection mouth (10) on integrating sphere (2) the ball wall, spectral measurement device (5) and detection mouth (10) optical coupling, carry appearance moving platform (3) and locate between white light source (1) and the entrance (9) of integrating sphere (2), the light beam that white light source (1) sent see through sample (4) of installing on carrying appearance moving platform (3), get into integrating sphere (2) through entrance (9) of integrating sphere (2), after the full mixing of light in integrating sphere (2), from detection mouth (10) the emergent of integrating sphere (2), received by spectral measurement device (5).
2. A transmission measuring device according to claim 1, wherein the wall of the integrating sphere (2) is further provided with an exit port (11), and the central line of the entrance port (9) and the exit port (11) passes through the center of the integrating sphere (2); the exit port (11) is provided with a movable white board (12) and a light trap (13).
3. A transmission measurement device according to claim 1 or 2, characterized in that the sample-carrying moving platform (3) is a three-dimensional moving platform.
4. A transmission measuring device as claimed in claim 1 or 2, characterized in that a front lens (6), a diaphragm (7) and a collimator lens (8) are arranged in succession along the light path of the white light source (1).
5. A transmission measuring device according to claim 4, characterized in that the aperture size of the diaphragm (7) is continuously adjustable, or that the diaphragm (7) comprises two or more switchable diaphragms with different aperture sizes.
6. A transmission measuring device according to claim 1 or 2, wherein the white light source (1) comprises two or more light source modules and a light source switching device (14), each light source module generates an illumination range with different size on the sample incidence surface, and the light source switching device (14) cuts the corresponding light source into the light path by means of electrical switching or mechanical switching.
7. A transmission measuring device according to claim 6, characterized in that the light source switching device (14) comprises a plurality of movable plane mirrors, and the light beam emitted by the corresponding light source module is reflected by the corresponding plane mirror and then enters the sample (4).
8. A transmission measuring device according to claim 1, further comprising a pulse driving device through which the white light source (1) is output.
9. A transmission measuring device according to claim 3, characterized in that the inner wall of the integrating sphere (2) is further provided with a reference light source.
10. A transmission measuring device according to claim 1, further comprising a beam splitter (15) and a reference light measuring device (16), wherein the beam splitter (15) is disposed on the outgoing light path of the white light source (1) in front of the sample-carrying moving platform (3), and the center of the beam splitter (15) coincides with the main optical axis of the white light source (1), and the reference light measuring device (16) is disposed on the outgoing light path of the beam splitter (15).
CN202222672029.7U 2022-10-11 2022-10-11 Transmission measuring device Active CN218865762U (en)

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Application Number Priority Date Filing Date Title
CN202222672029.7U CN218865762U (en) 2022-10-11 2022-10-11 Transmission measuring device

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Application Number Priority Date Filing Date Title
CN202222672029.7U CN218865762U (en) 2022-10-11 2022-10-11 Transmission measuring device

Publications (1)

Publication Number Publication Date
CN218865762U true CN218865762U (en) 2023-04-14

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