CN102853911B - Electromagnetic compatibility device for spark light source of photoelectric direct-reading spectrometer - Google Patents
Electromagnetic compatibility device for spark light source of photoelectric direct-reading spectrometer Download PDFInfo
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- CN102853911B CN102853911B CN201210311798.2A CN201210311798A CN102853911B CN 102853911 B CN102853911 B CN 102853911B CN 201210311798 A CN201210311798 A CN 201210311798A CN 102853911 B CN102853911 B CN 102853911B
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Abstract
The invention discloses an electromagnetic compatibility device for a spark light source of a photoelectric direct-reading spectrometer.The electromagnetic compatibility device comprises a low voltage controlling module, a high voltage generating module, a power module and a voltage isolating module; both the low voltage controlling module and the power module are arranged in a spark light source box; both the high voltage generating module and the voltage isolating module are arranged in a Faraday cage; the Faraday cage is integrated with an exciting platform; a connecting wire for the low voltage controlling module and the high pressure generating module between the Faraday cage and the spark light source box and a connecting wire for the voltage isolating module and the power module are arranged in a shielding mechanism; the exciting platform is connected with the power module through a return cable; the spark light source box and the return cable are grounded; the power module, the low voltage controlling module, the high voltage generating module and the exciting platform are connected with a reference ground in a power supply. According to the electromagnetic compatibility device for a spark light source of a photoelectric direct-reading spectrometer, a current path of a high voltage loop is reduced and electromagnetic interference amplitude is reduced, thereby foundationally solving electromagnetic interference.
Description
Technical field
The invention belongs to spectral instrument technical field, be specifically related to a kind of electromagnetic compatibility device of the spark light source for photo-electric direct reading spectrometer.
Background technology
Existing spark light source, as shown in Figure 1, comprise low-pressure control module, high pressure generation module, power model and voltage isolation module, the signal output part of described low-pressure control module is connected with the signal input part of high pressure generation module and power model respectively, the high-voltage output end of described high pressure generation module and the voltage output end of the power model respectively input end corresponding with voltage isolation module are connected, the output terminal of described power isolation module is connected with excitation bench by screen layer, and above-mentioned low-pressure control module, high pressure generation module, power model and voltage isolation module are all placed on the spark light source case the inside from 1 meter of excitation bench, low-pressure control module, high pressure generation module, power model is connected with reference ground and the spark light source case of power supply inside respectively, spark light source case and excitation bench connect the earth, like this be arranged so that light source activation current return is large, electromagnetic radiation is serious.The frame of whole instrument is also ground connection simultaneously, spark power supply box shell is also ground connection, cause the part high-frequency current mechanical parts such as frame of flowing through so spark light source current return in the time exciting is not single, and between mechanical part, exist gap to form antithesis antenna, produce serious electromagnetic interference (EMI).These electromagnetic interference (EMI) cause instrument telemetry circuit normally to work.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, a kind of electromagnetic compatibility device of the spark light source for photo-electric direct reading spectrometer is provided, reduce the current path of high tension loop, reduced electromagnetic interference (EMI) amplitude, solved electromagnetic interference (EMI) from source.
Technical scheme: the electromagnetic compatibility device of a kind of spark light source for photo-electric direct reading spectrometer of the present invention, comprise low-pressure control module, high pressure generation module, power model and voltage isolation module, the signal output part of described low-pressure control module is connected with the signal input part of high pressure generation module and power model respectively, the high-voltage output end of described high pressure generation module is connected with high voltage input terminal and the voltage input end of voltage isolation module respectively with the voltage output end of power model, the voltage output end of described voltage isolation module is connected with excitation bench, described low-pressure control module and power model are arranged in spark light source case, described high pressure generation module and voltage isolation module are arranged in faraday cup, described faraday cup and excitation bench are integrated, the connecting line of the low-pressure control module between described faraday cup and spark light source case and the connecting line of high pressure generation module and voltage isolation module and power model is arranged in shielding body, described excitation bench is connected by return wire with power model, described spark light source case and return wire connect the earth, described power model, low-pressure control module, high pressure generation module and excitation bench all connect the reference ground of power supply inside.Further improve technique scheme, described faraday cup and excitation bench are one-body molded.
Further improve technique scheme, the connecting line of the low-pressure control module between described faraday cup and spark power supply box and the connecting line of high pressure generation module and voltage isolation module and power model is arranged in cast gauze screen.
High pressure generation module in spark light source case and voltage isolation module are placed in the faraday cup with excitation bench one, and the line between light-source box and excitation bench is shielded with copper shield net, adopt circular ring type to connect the shielding properties that ensures whole system in junction.Power model in light-source box be not connected with the housing of light-source box, and guaranteed output blocks current flows back to power model and can not flow through any mechanical part from return wire.
Compared with prior art, its beneficial effect is in the present invention: the electromagnetic compatibility device of the spark light source for photo-electric direct reading spectrometer of the present invention, reduce the current path of high tension loop, and reduce electromagnetic interference (EMI) amplitude, solve electromagnetic interference (EMI) from source; And single loop of power circuit ground can avoid high-frequency current to be launched with electromagnetic form by frame, telemetry circuit is caused to interference, affect stability of instrument.
Brief description of the drawings
Fig. 1 is existing spark light source schematic diagram.
Fig. 2 is the electromagnetic compatibility device schematic diagram of the spark light source for photo-electric direct reading spectrometer of the present invention.
Embodiment
Below technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
As shown in Figure 2, a kind of electromagnetic compatibility device of the spark light source for photo-electric direct reading spectrometer, comprise low-pressure control module, high pressure generation module, power model and voltage isolation module, the signal output part of described low-pressure control module is connected with the signal input part of high pressure generation module and power model respectively, the high-voltage output end of described high pressure generation module is connected with high voltage input terminal and the voltage input end of voltage isolation module respectively with the voltage output end of power model, the voltage output end of described voltage isolation module is connected with excitation bench, it is characterized in that, described low-pressure control module and power model are arranged in spark light source case, described high pressure generation module and voltage isolation module are arranged in faraday cup, described faraday cup and excitation bench are integrated, the connecting line of the low-pressure control module between described faraday cup and spark light source case and the connecting line of high pressure generation module and voltage isolation module and power model is arranged in tubular copper shield net, described excitation bench is connected by return wire with power model, described spark light source case and return wire connect the earth, between described high pressure generation module and low-pressure control module, be connected with ground wire, between described low-pressure control module and power model, be connected with ground wire, described power model and excitation bench all connect the reference ground of power supply inside, described high pressure generation module and low-pressure control module connect power supply internal reference ground by power model.
As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.
Claims (2)
1. the electromagnetic compatibility device for the spark light source of photo-electric direct reading spectrometer, comprise low-pressure control module, high pressure generation module, power model and voltage isolation module, the signal output part of described low-pressure control module is connected with the signal input part of high pressure generation module and power model respectively, the high-voltage output end of described high pressure generation module is connected with high voltage input terminal and the voltage input end of voltage isolation module respectively with the voltage output end of power model, the voltage output end of described voltage isolation module is connected with excitation bench, it is characterized in that, described low-pressure control module and power model are arranged in spark light source case, described high pressure generation module and voltage isolation module are arranged in faraday cup, described faraday cup and excitation bench are integrated, the connecting line of the low-pressure control module between described faraday cup and spark light source case and the connecting line of high pressure generation module and voltage isolation module and power model is arranged in shielding body, described excitation bench is connected by return wire with power model, described spark light source case and return wire connect the earth, described power model, low-pressure control module, high pressure generation module and excitation bench all connect the reference ground of power supply inside.
2. the electromagnetic compatibility device of the spark light source for photo-electric direct reading spectrometer according to claim 1, it is characterized in that, the connecting line of the low-pressure control module between described faraday cup and spark light source case and the connecting line of high pressure generation module and voltage isolation module and power model is arranged in cast gauze screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311798.2A CN102853911B (en) | 2012-08-29 | 2012-08-29 | Electromagnetic compatibility device for spark light source of photoelectric direct-reading spectrometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210311798.2A CN102853911B (en) | 2012-08-29 | 2012-08-29 | Electromagnetic compatibility device for spark light source of photoelectric direct-reading spectrometer |
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| CN102853911A CN102853911A (en) | 2013-01-02 |
| CN102853911B true CN102853911B (en) | 2014-06-11 |
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| CN201210311798.2A Active CN102853911B (en) | 2012-08-29 | 2012-08-29 | Electromagnetic compatibility device for spark light source of photoelectric direct-reading spectrometer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103115678B (en) * | 2013-01-30 | 2015-01-21 | 中国广州分析测试中心 | Bidirectionally excited spark light source with high repetition frequency |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1167487A (en) * | 1997-08-25 | 1999-03-09 | Hitachi Ltd | Disk device and removable type magnetic disk device |
| CN201654083U (en) * | 2010-05-06 | 2010-11-24 | 中国人民解放军92601部队 | Shielding box for weak-voltage detector |
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2012
- 2012-08-29 CN CN201210311798.2A patent/CN102853911B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1167487A (en) * | 1997-08-25 | 1999-03-09 | Hitachi Ltd | Disk device and removable type magnetic disk device |
| CN201654083U (en) * | 2010-05-06 | 2010-11-24 | 中国人民解放军92601部队 | Shielding box for weak-voltage detector |
Non-Patent Citations (2)
| Title |
|---|
| 《新型直读光谱仪的开发》;孙兰海;《电子与通信工程》;20090623;全文 * |
| 孙兰海.《新型直读光谱仪的开发》.《电子与通信工程》.2009,全文. |
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