CN115508762A - Calibration system of bow net arcing detection device - Google Patents
Calibration system of bow net arcing detection device Download PDFInfo
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- CN115508762A CN115508762A CN202211222920.9A CN202211222920A CN115508762A CN 115508762 A CN115508762 A CN 115508762A CN 202211222920 A CN202211222920 A CN 202211222920A CN 115508762 A CN115508762 A CN 115508762A
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- detection device
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- net arcing
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention provides a calibration system of a bow net arcing detection device, which comprises: the main light source assembly is used for emitting a stroboscopic light source, the central wavelength of the stroboscopic light source is greater than or equal to 220nm and less than or equal to 270nm, and the pulse width and the stroboscopic time interval of the stroboscopic light source are greater than or equal to 0.01ms and less than or equal to 100ms; the light path regulating component is used for projecting a regulating stroboscopic light source to the bow net arcing detection device to be calibrated; and after receiving the stroboscopic light source, the bow net arcing detection device to be calibrated outputs a response signal of the stroboscopic light source so as to calibrate the bow net arcing detection device to be calibrated based on the response signal. The invention realizes the simulation and monitoring of the bow net arcing characteristic wavelength light by selecting the wavelength of the stroboscopic light source and effectively matching the characteristic wavelength of the bow net arcing, can also set the pulse width and the stroboscopic time interval of different gears, realizes the calibration of the response time of the bow net arcing detection device, and has simple structure and strong practicability.
Description
Technical Field
The invention relates to the technical field of optical devices, in particular to a calibration system of a bow net arcing detection device.
Background
The bow net arcing detection device is a core evaluation device for bow net relations of rail transit such as high-speed rails and subways, and spectral response and response time are important performance parameters of the bow net arcing detection device. In order to obtain accurate arcing parameter measurement results, the bow net arcing detection device must periodically perform calibration of characteristic wavelength response and response time characteristics thereof.
Currently, deuterium lamps are usually used to calibrate bow net arcing detection devices. The ultraviolet signal of the deuterium lamp is strong, but the spectrum of the deuterium lamp is a continuous spectrum, so that the deuterium lamp is difficult to realize good matching with the characteristic wavelength of bow net arcing; the spectral range of the deuterium lamp is wide and is overlapped with the spectral distribution of the natural sunlight interference light source; additionally, the temporal characteristic controllability of the deuterium lamp is not good, and the pulse type bow net arcing signal is difficult to simulate; and the device structure is comparatively complicated, is difficult to satisfy the online demand of maring of bow net arcing detection device, is unfavorable for popularizing to actual field application.
Disclosure of Invention
The invention provides a calibration system of a bow net arcing detection device, and aims to solve the technical problems that a deuterium lamp is wide in ultraviolet light source spectrum range, overlapped with a sunlight interference spectrum, and poor in matching degree with characteristic wavelength of bow net arcing and time characteristic controllability.
The invention provides a calibration system of a bow net arcing detection device, which comprises:
a main light source assembly for emitting a stroboscopic light source having a center wavelength greater than or equal to 220nm and less than or equal to 270nm; the pulse width and the flash time interval of the stroboscopic light source are greater than or equal to 0.01ms and less than or equal to 100ms;
the light path regulating component is used for projecting the stroboscopic light source to the bow net arcing detection device to be calibrated;
after receiving the stroboscopic light source, the bow net arcing detection device to be calibrated outputs a response signal corresponding to the stroboscopic light source, so that the bow net arcing detection device to be calibrated is calibrated based on the response signal.
According to the calibration system of the bow net arcing detection device, the bandwidth of the stroboscopic light source is not more than 20nm.
According to the calibration system of the bow net arcing detection device provided by the invention, the calibration system further comprises a monitoring detection component, wherein:
the light path regulating component is also used for projecting the stroboscopic light source to the monitoring detection component;
the monitoring and detecting component is used for monitoring a light source response signal of the stroboscopic light source so as to verify the calibration result based on the light source response signal.
According to the calibration system of the bow net arcing detection device provided by the invention, the calibration system further comprises an interference light source component, wherein:
the interference light source component is used for emitting an interference light source;
the light path regulating component is also used for projecting the interference light source to the monitoring detection component and the bow net arcing detection device to be calibrated;
after receiving the interference light source, the bow net arcing detection device to be calibrated outputs a response result corresponding to the interference light source;
the monitoring and detecting component is also used for monitoring a light source response signal of the interference light source; and verifying the spectral response wave band of the bow net arcing detection device to be calibrated based on the light source response signals respectively corresponding to the stroboscopic light source and the interference light source, the response signal of the bow net arcing detection device to be calibrated to the stroboscopic light source and the response result of the interference light source.
According to the calibration system of the bow net arcing detection device, provided by the invention, the spectral distribution wavelength of the interference light source is larger than 300nm.
According to the calibration system of the bow net arcing detection device provided by the invention, the light path regulating component comprises a lens and a beam splitter, wherein:
the lens is used for projecting the stroboscopic light source or the interference light source to the beam splitter
The beam splitter is used for splitting the stroboscopic light source or the interference light source so as to project the split stroboscopic light source or the interference light source to the monitoring and detecting assembly and the bow net arcing detection device to be calibrated.
According to the calibration system of the bow net arcing detection device provided by the invention, the monitoring detection component comprises an optical detector and an electric signal data acquisition unit, wherein:
the light detector is used for detecting the stroboscopic light source or the interference light source;
the electric signal data collector is used for collecting a light source response signal of the light detector to the stroboscopic light source or the interference light source, wherein the light source response signal comprises a current signal or a voltage signal.
According to the calibration system of the bow net arcing detection device provided by the invention, the spectral response waveband of the optical detector is greater than or equal to 200nm and less than or equal to 1100nm.
According to the calibration system of the bow net arcing detection device, the calibration system is packaged in the light-tight casing.
The invention provides a calibration system of a bow net arcing detection device, which comprises: a main light source assembly for emitting a stroboscopic light source having a center wavelength greater than or equal to 220nm and less than or equal to 270nm; the pulse width and the flash time interval of the stroboscopic light source are greater than or equal to 0.01ms and less than or equal to 100ms; the light path regulating component is used for projecting the stroboscopic light source to the bow net arcing detection device to be calibrated; after receiving the stroboscopic light source, the bow net arcing detection device to be calibrated outputs a response signal corresponding to the stroboscopic light source, so that the bow net arcing detection device to be calibrated is calibrated based on the response signal. The invention realizes the simulation and monitoring of the bow net arcing characteristic wavelength light by selecting the wavelength of the stroboscopic light source and effectively matching the characteristic wavelength of the bow net arcing, and also realizes the calibration of the response time of the bow net arcing detection device by setting the pulse width and the stroboscopic time interval of different gears.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a calibration system of the bow net arcing detection device provided by the invention.
The reference numbers illustrate:
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The terminology used in the one or more embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of the invention. As used in one or more embodiments of the present invention, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present invention refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that, although the terms first, second, etc. may be used herein to describe various information in one or more embodiments of the present invention, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first aspect may be termed a second aspect, and, similarly, a second aspect may be termed a first aspect, without departing from the scope of one or more embodiments of the present invention. Depending on the context, the word "if" as used herein may be interpreted as "at" \8230; … "when" or "when 8230; \8230"; "when".
An exemplary embodiment of the present invention is described in detail below with reference to fig. 1.
Fig. 1 is a schematic structural diagram of a calibration system of the bow net arcing detection device provided by the invention. As shown in fig. 1, the calibration system of the bow net arcing detection device includes: main light source subassembly 1 and light path regulation and control components and parts 3, wherein:
the main light source assembly 1 is used for emitting a stroboscopic light source;
the light path regulating component 3 is used for projecting the stroboscopic light source to a bow net arcing detection device 5 to be calibrated;
after receiving the stroboscopic light source, the bow net arcing detection device to be calibrated 5 outputs a response signal corresponding to the stroboscopic light source, so as to calibrate the bow net arcing detection device to be calibrated 5 based on the response signal.
In the embodiment of the invention, the central wavelength of the stroboscopic light source is greater than or equal to 220nm (nanometer) and less than or equal to 270nm, the bandwidth of the stroboscopic light source is not more than 20nm, optionally, the central wavelength of the stroboscopic light source can be selected and optimized according to the requirements of the bow net arcing detection device 5 to be calibrated, and theoretically, the narrower the bandwidth is, the better the bandwidth is, so that the characteristic wavelength of the bow net arcing is better matched. The pulse width of the stroboscopic light source and the stroboscopic time interval of the stroboscopic light source are both greater than or equal to 0.01ms (millisecond) and less than or equal to 100ms, and the pulse width and the stroboscopic time interval of the stroboscopic light source can be adjusted within the range, so that simulated pantograph catenary arcing signals with different pulse widths and different stroboscopic time intervals are obtained, namely: the pulse widths and the stroboscopic time intervals of different gears are set, arcing analog signals with various time characteristics are obtained, and the calibration of the response time of the bow net arcing detection device 5 can be realized. Therefore, by selecting the wavelength of the stroboscopic light source and setting the pulse width and the stroboscopic time interval of different gears, different types of bow net arcing simulation are realized, for example: a stroboscopic light source with the central wavelength of 260nm is used, the bandwidth of the stroboscopic light source is 12nm, the pulse width is controlled to be 0.1ms, the stroboscopic time interval is controlled to be 30ms, and bow net arcing generated by typical rail transit is simulated.
Specifically, a stroboscopic light source is emitted to the light path control component 3 through the main light source assembly 1, and then the stroboscopic light source is projected to the bow net arcing detection device 5 to be calibrated through the light path control component 3, so that the stroboscopic light source irradiates the bow net arcing detection device 5 to be calibrated, and then the bow net arcing detection device 5 to be calibrated outputs a response signal of the stroboscopic light source after receiving the stroboscopic light source, and then the response characteristic of the bow net arcing detection device 5 to be calibrated is determined according to the response signal of the stroboscopic light source, so that the bow net arcing detection device 5 to be calibrated is calibrated.
Further, the calibration system provided by the embodiment of the present invention is further provided with a monitoring and detecting component 4, wherein:
the light path regulating component 3 is further configured to project a stroboscopic light source to the monitoring and detecting component 4;
the monitoring and detecting component 4 is used for monitoring a light source response signal of the stroboscopic light source.
Specifically, a stroboscopic light source is projected to the monitoring detection component 4 through the light path adjusting component 3, the light source response signal of the stroboscopic light source is then monitored by the monitoring detection assembly 4, preferably, the optical path regulating component 3 includes optical components such as a lens and a beam splitter, the optical components are not limited to the lens and the beam splitter, in other embodiments, the light path adjusting and controlling component 3 may further include components such as a diaphragm, and after the stroboscopic light source is projected to the light path adjusting and controlling component 3, the stroboscopic light source can be projected to the beam splitter based on optical components such as a lens and/or a diaphragm in the light path adjusting component 3, and then the stroboscopic light source is subjected to beam splitting treatment through the beam splitter, wherein, the beam splitting proportion of the beam splitter can be set according to the actual situation to obtain two light sources, wherein, part of the split stroboscopic light source is projected to the bow net arcing detection device 5 to be calibrated, and the other part of the split stroboscopic light source is projected to the monitoring detection component 4, wherein, the monitoring and detecting component 4 comprises a light detector and an electric signal data collector, the stroboscopic light source is detected by the light detector, the spectral response waveband of the light detector is greater than or equal to 200nm and less than or equal to 1100nm, and collecting a light source response signal of the light detector to the stroboscopic light source through the electric signal data collector, wherein the light source response signal may be a current signal or a voltage signal, such that when the light source response signal of the stroboscopic light source is detectable by the monitoring detection assembly 4, and when the bow net arcing detection device 5 to be calibrated has no response to the stroboscopic light source, the existence of abnormality of the bow net arcing detection device to be calibrated can be judged.
Further, in order to verify that the calibrated bow net arcing monitoring device 5 does not respond to natural sunlight, the calibration system provided by the embodiment of the present invention further includes an interference light source assembly 2, wherein:
the interference light source component 2 is used for emitting an interference light source;
the light path regulating component 3 is further configured to project the interference light source to the monitoring and detecting component 4 and the bow net arcing detection device 5 to be calibrated; after receiving the interference light source, the bow net arcing detection device to be calibrated outputs a response result corresponding to the interference light source;
the monitoring and detecting component 4 is further configured to monitor a light source response signal of the interference light source, so as to verify a spectral response band of the bow net arcing detection device 5 to be calibrated based on the light source response signal corresponding to the stroboscopic light source and the interference light source, the response signal of the bow net arcing detection device 5 to be calibrated to the stroboscopic light source, and a response result of the interference light source.
It should be noted that, in order to verify that the bow net arcing detection device 5 to be calibrated does not respond to the natural sunlight spectrum band. The calibration system provided by the embodiment of the invention is provided with the interference light source component to verify that the bow net arcing detection device 5 to be calibrated only responds to the stroboscopic light source and does not respond to the interference light source.
Specifically, an interference light source is emitted to the light path regulating component 3 through the interference light source component 2, preferably, a white light source with a spectral distribution wavelength larger than 300nm is selected as the interference light source, the interference light source is projected to a beam splitter in the light path regulating component 3 through a lens and/or a diaphragm in the light path regulating component 3, the interference light source is split through the beam splitter, the split interference light source is projected to the monitoring detection component 4 and the bow net arcing detection device 5 to be calibrated, further, the interference light source is detected through a light detector in the monitoring detection component 4, a light source response signal of the light detector to the interference light source is acquired through the electric signal data acquisition device, whether a response signal corresponding to the interference light source is output or not is confirmed by the bow net arcing detection device 5 to be calibrated, if no response signal is output from the interference light source, the bow net arcing detection device 5 to be calibrated does not respond to the interference light source, and therefore it is determined that in the calibration process, the response signal of the bow net arcing detection device 5 to be calibrated only responds to a light source with a specific wavelength, and the light source can be verified to avoid natural sunlight interference. Additionally, if the bow net arcing detection device 5 to be calibrated responds to the interference light source, the device should be replaced without being put into practical use.
Additionally, to avoid interference of other light sources with the calibration system, the calibration system is enclosed in a light-tight enclosure.
Optionally, a specific embodiment of the present invention is provided, in the calibration process, a narrow-bandgap ultraviolet LED light source is adopted, and a stroboscopic light source with a specific frequency is obtained by driving a random waveform generator, wherein a central wavelength of the stroboscopic light source is 260nm, a bandwidth of the stroboscopic light source is 12nm, a pulse width of the stroboscopic light source is 0.1ms, and a stroboscopic time interval is 30ms, and then light path regulation and control are performed through a lens, a beam splitter and a diaphragm in a light path regulation and control component 3, so that the stroboscopic light source is projected to the monitoring detection component 4 and the bow net arcing detection device to be calibrated 5.
Further, in order to verify that the bow net arcing detection device 5 to be calibrated does not respond to natural sunlight, a quartz halogen tungsten lamp is used to obtain a white light interference light source, wherein the spectral range of the interference light source is greater than or equal to 400nm and less than or equal to 2200nm, and then light path regulation and control are performed through a lens, a beam splitter and a diaphragm in a light path regulation and control component 3 so as to project the interference light source to the monitoring detection component 4 and the bow net arcing detection device 5 to be calibrated, the monitoring detection component 4 responds to both the stroboscopic light source and the interference light source, and the bow net arcing detection device 5 to be calibrated only responds to the stroboscopic light source, and additionally, if the bow net arcing detection device 5 to be calibrated responds to the interference light source, the device should be replaced and is not put into practical use.
The embodiment of the invention realizes that the characteristic wavelength of the bow net arcing is effectively matched by selecting the wavelength of the stroboscopic light source, the calibration of the response time of the bow net arcing detection device can be realized by setting the pulse width and the stroboscopic time interval of different gears, and in addition, whether the bow net arcing detection device to be calibrated responds to the interference light source is verified by simulating a sunlight interference signal so as to filter the unqualified bow net arcing monitoring device interfered by the interference light source.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A calibration system of bow net arcing detection device is characterized by comprising:
a main light source assembly for emitting a stroboscopic light source having a center wavelength greater than or equal to 220nm and less than or equal to 270nm; the pulse width and the stroboscopic time interval of the stroboscopic light source are greater than or equal to 0.01ms and less than or equal to 100ms;
the light path regulating component is used for projecting the stroboscopic light source to the bow net arcing detection device to be calibrated;
after receiving the stroboscopic light source, the bow net arcing detection device to be calibrated outputs a response signal corresponding to the stroboscopic light source, so that the bow net arcing detection device to be calibrated is calibrated based on the response signal.
2. The system for calibrating an bow net arcing detection device according to claim 1, wherein a bandwidth of said stroboscopic light source is no more than 20nm.
3. The calibration system for a bow net arcing detection device according to claim 1, further comprising a monitoring detection assembly, wherein:
the light path regulating component is also used for projecting the stroboscopic light source to the monitoring detection component;
the monitoring and detecting component is used for monitoring a light source response signal of the stroboscopic light source so as to verify the calibration result based on the light source response signal.
4. The calibration system for bow net arcing detection apparatus as set forth in claim 3, further comprising an interference light source assembly, wherein:
the interference light source component is used for emitting an interference light source;
the light path regulating component is also used for projecting the interference light source to the monitoring detector and the bow net arcing detection device to be calibrated;
after receiving the interference light source, the bow net arcing detection device to be calibrated outputs a response result corresponding to the interference light source;
the monitoring and detecting component is also used for monitoring a light source response signal of the interference light source;
and verifying the spectral response wave band of the bow net arcing detection device to be calibrated based on the light source response signals respectively corresponding to the stroboscopic light source and the interference light source, the response signal of the bow net arcing detection device to be calibrated to the stroboscopic light source and the response result of the interference light source.
5. The calibration system for the bow net arcing detection device of claim 4, wherein the spectral distribution wavelength of the interference light source is greater than 300nm.
6. The system of claim 4, wherein the optical path adjustment component comprises a lens and a beam splitter, wherein:
the lens is used for projecting the stroboscopic light source or the interference light source to the beam splitter;
the beam splitter is used for splitting the stroboscopic light source or the interference light source so as to project the split stroboscopic light source or the interference light source to the monitoring and detecting component and the bow net arcing detection device to be calibrated.
7. The system for calibrating an arcing detection device in bow net according to claim 4, wherein said monitoring and detecting assembly comprises a light detector and an electrical signal data collector, wherein:
the light detector is used for detecting the stroboscopic light source or the interference light source;
the electric signal data collector is used for collecting a light source response signal of the light detector to the stroboscopic light source or the interference light source, wherein the light source response signal comprises a current signal or a voltage signal.
8. The calibration system for the bow net arcing detection device of claim 7, wherein the spectral response band of the light detector is greater than or equal to 200nm and less than or equal to 1100nm.
9. The calibration system for bow net arcing detection apparatus as claimed in any one of claims 1 to 8, wherein said calibration system is enclosed in a light-tight enclosure.
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| CN202211222920.9A CN115508762A (en) | 2022-10-08 | 2022-10-08 | Calibration system of bow net arcing detection device |
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| CN202211222920.9A CN115508762A (en) | 2022-10-08 | 2022-10-08 | Calibration system of bow net arcing detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952538A (en) * | 2023-07-27 | 2023-10-27 | 湖南大学 | A quick quality control device for ultraviolet detector photoelectric property detects |
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- 2022-10-08 CN CN202211222920.9A patent/CN115508762A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952538A (en) * | 2023-07-27 | 2023-10-27 | 湖南大学 | A quick quality control device for ultraviolet detector photoelectric property detects |
| CN116952538B (en) * | 2023-07-27 | 2024-01-19 | 湖南大学 | A quick quality control device for ultraviolet detector photoelectric property detects |
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