CN104776330A - Low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration - Google Patents
Low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration Download PDFInfo
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- CN104776330A CN104776330A CN201510099656.8A CN201510099656A CN104776330A CN 104776330 A CN104776330 A CN 104776330A CN 201510099656 A CN201510099656 A CN 201510099656A CN 104776330 A CN104776330 A CN 104776330A
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- pressure mercury
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- ultraviolet
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 59
- 238000001514 detection method Methods 0.000 title abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003708 ampul Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000497 Amalgam Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005469 synchrotron radiation Effects 0.000 description 8
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 7
- 229910052805 deuterium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010015150 Erythema Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 201000004681 Psoriasis Diseases 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000321 erythema Toxicity 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005372 isotope separation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 230000000258 photobiological effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 208000007442 rickets Diseases 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000000825 ultraviolet detection Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention belongs to the technical field of ultraviolet radiation measurement, and in particular discloses a low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration. The low-pressure mercury lamp standard system comprises at least one group of low-pressure mercury discharge standard lamps, a driving power supply, a light source control system and a temperature control system, wherein each group of the low-pressure mercury discharge standard lamps at least includes three low-pressure mercury discharge standard lamps which are same in type and same in parameter; the temperature control system is used for making constant-temperature cold ends on the tube walls of the low-pressure mercury discharge standard lamps; the light source control system comprises a detector and a controller; the detector is used for detecting the radiation intensity of the low-pressure mercury discharge standard lamps and for regulating the output current of the driving power supply by virtue of a feedback loop of a controller so as to achieve constant ultraviolet output at 254nm, so that the stability of the discharge lamps is improved. The standard system disclosed by the invention can offer stable radiation output, and can be used as an ultraviolet primary standard light source to calibrate an ultraviolet integrating sphere, a radiation illuminometer and like detection equipment, so as to provide a reliable radiation standard for actual production and light source detection.
Description
Technical field
The invention belongs to ultra-violet radiation field of measuring technique, be specifically related to a kind of low pressure mercury lamp modular system detecting for uviol lamp and calibrate.
Background technology
In current production, life, uviol lamp all plays an important role in various fields.Ultraviolet photo-biological effect can be used for sterilizing, after bacterium is subject to Ultraviolet radiation, causes DNA chain break, causes bacterial death.Ultraviolet disinfection is used for many occasions such as air, water, various types of beverages, laboratory, workshop and hospital.Ultraviolet also has the application of very wide scope to body-care, and appropriate ultraviolet irradiation has desirable influence to human body viscera and immune system, but excessive ultraviolet can cause the disease of skin such as erythema.The ultraviolet physical therapy developed at present can treat psoriasis and rickets, diminishes inflammation.Ultraviolet fluorescent effect can be used for the chemical analysis of inorganic elements and organic substance, the trace element in food hygiene and the detection of harmful substance, the monitoring of product quality in industrial production, the sample analysis in the detection of mineral deposit.Ultraviolet actinic effect can be used for duplicating, ink solidification, the photoetching technique of semiconductor chip, macromolecule degradation and isotopic separation etc.High-power ultraviolet source can produce ultra-violet radiation flux, facility compact in limited volume, and use cost is lower.The product of external existing all kinds of ultraviolet source, has large-scale application in urban drinking water, plumbing and air disinfection field.
Correspondingly, ultra-violet radiation measures one of emphasis also becoming the concern such as relevant enterprise, testing agency.In order to ensure accuracy and the accuracy of measurement result, need the reliable ultraviolet standard lamp of performance as scaling light source.
The seventies in last century, various countries just utilize synchrotron radiation and the steady arc source of wall in succession to set up ultraviolet vacuum ultraviolet spectroscopy radiation national standard.Argon wallstabilized arc light source is that arc discharge under an argon atmosphere forms axially uniform local thermodynamic equilibrium state plasma, and can determine the spectral radiance of arc plasma according to black body spectrum lineation opinion or Schulz-Gul-de theory.And a kind of Novel radiation source that synchrotron radiation (SR) is immediate and mid-term to be developed rapidly, have that wave-length coverage is wide, brightness is high, radiation characteristic can the feature such as accurate Calculation, the characteristics such as its spectral radiance obtain according to Schwinger theory calculate.The ultraviolet radiation standard of generally acknowledging at present comprises the BESSY II synchrotron radiation standard of German National physical technique research institute (PTB), the DARESBURG synchrotron radiation standard etc. of United Kingdom National physics laboratory (NPL).China also establishes 800 MeV Electronic saving loop devices in the nineties in Hefei and has carried out Characteristics of synchrotron radiation research.
In order to synchrotron radiation standard is incorporated into practical application, now generally adopts with synchrotron radiation the comparison of the Transfer Standards deuterium lamp light source being standard to calibrate and realize.Deuterium lamp grows up on the basis of hydrogen lamp, and radiation intensity is high, good stability, life-span are long, can produce the continuous radiation within the scope of wavelength 165 ~ 370 nm.The kind of deuterium lamp is a lot, and can be divided into end window and side window two kinds by the formal classification of window, its light-emitting area is the circle being generally diameter 1 mm.After lamp preheating, in 1 hour, Measurement sensibility is within ± 1%; When using deuterium lamp, the change of radiance is not more than 2%.But the continuous spectrum of deuterium lamp, cannot as the wavelength calibration of detecting instrument, and therefore UV detection devices also needs other a set of wavelength calibration light source, therefore improves cost, too increases the workload of instrument calibration and calibration.In addition, there is larger architectural difference with conventional uviol lamp in deuterium lamp, it is a spot light that deuterium lamp can be regarded as, and the light sources such as conventional low pressure mercury lamp are linear, therefore also can impact calibration.
By comparison, what low pressure mercury lamp was launched is the characteristic curve spectrum of mercury atom, and its line wavelength is determined, can as the regulation light source of wavelength.As long as can ensure the stability that low pressure mercury lamp discharges, so this ultraviolet standard lamp just can take into account the function in standard spectrum line source and normal intensity source, provides radiation intensity to calibrate and radiation wavelength calibration simultaneously.And low pressure mercury lamp is cheap, radiation efficiency is high, itself is to apply one of the most general uviol lamp.Adopt low pressure mercury lamp as standard lamp, because the difference such as shape, structure of standard lamp and tested lamp is less, the operation easier of calibration can be reduced, reduce the measure error because shape difference etc. causes simultaneously.
But adopt low pressure mercury lamp as ultraviolet standard lamp, the problem of most critical is the problem that will solve poor stability.In fluorescent tube, the vapour pressure of mercury is determined by the cold junction temperature of fluorescent tube, and the size of the vapour pressure of mercury directly affects the discharge condition of lamp.Environmental condition due to lighting is difficult to accurate control, even if therefore same low pressure mercury lamp also can be difficult to ensure the uniformity demonstrate,proving cold junction temperature between twice burning-point, thus causes the less stable of lamp, may there is the deviation of 5 ~ 10%.
Summary of the invention
The object of the present invention is to provide a kind of can stablizing to export ultra-violet radiation, detect for uviol lamp and the low pressure mercury lamp modular system of calibration.
The low pressure mercury lamp modular system detecting for uviol lamp and calibrate provided by the invention, comprise at least 1 group low-pressure mercury discharge standard lamp, driving power, light-source control system and temperature-controlling system, stable radiant output can be provided, can be used as ultraviolet primary standard light source to be used for calibrating the checkout equipments such as ultraviolet integrating sphere, radiation illuminometer, for actual production and light source detection provide reliable 254 nm radiation standards.
In the present invention, often organize the mercury discharge lamp (standard lamp) that low-pressure mercury discharge standard lamp at least comprises 3 identical types, identical parameters; Each mercury discharge lamp is all demarcated through national legal unit of measurement, and the multiple mercury discharge lamp lamps often organized can correct mutually.Described mercury discharge lamp is the uviol lamp not being coated with fluorescent material, adopts quartz ampoule to make; The power density scope of mercury discharge lamp is 5 ~ 500 W/m.
The filament of described mercury discharge lamp adopts pipeline start up by preheating, by external power source heat filament after normal work, makes cathode hot spot remain on 900 ~ 1000 DEG C, to improve the stability of cathode fall.
Described driving power adopts stable square wave power or rectangular pulse power supply, frequency range 50 Hz ~ 50 kHz.
Described temperature-controlling system manufactures constant temperature cold junction on the tube wall to low-pressure mercury discharge standard lamp, guarantees the working temperature constant of cold junction place liquid mercury or amalgam, maintains the stability of mercury vapor pressure in lamp.Described temperature-controlling system adopts water bath with thermostatic control or oil bath to manufacture liquid-circulating and controls cold junction temperature.
Described light-source control system comprises 1 detector and 1 controller, and detector for detecting the radiation intensity of low-pressure mercury discharge standard lamp, and regulates the output of driving power, to improve the stability of discharge lamp via the backfeed loop of controller.Described detector adopts ultraviolet detector, can be used for measuring specific UV wavelength, also can measure whole ultraviolet band radiation.
Low-pressure mercury beacon light modular system of the present invention can provide stable radiant output, can be used as ultraviolet primary standard light source and is used for calibrating the checkout equipments such as ultraviolet integrating sphere, radiation illuminometer, for actual production and light source detection provide reliable 254 nm radiation standards.Can as spoke luminance standard, also can as radiant energy flux standard, also can as the irradiation level standard of a distance.
Accompanying drawing explanation
Fig. 1 is the system diagram of low pressure mercury lamp modular system of the present invention.
Fig. 2 is the structure chart of low pressure mercury lamp standard lamp of the present invention.
Number in the figure: 1-fluorescent tube; 2-filament; 3-water jacket; 4-water service pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.Described embodiment is only section Example of the present invention.Do not make other all embodiments of creative achievement based on the embodiment in the present invention, all belong to protection scope of the present invention.
Fig. 1 shows the composition of low pressure mercury lamp modular system, comprises one group of low-pressure mercury discharge standard lamp, driving power, light-source control system and temperature-controlling system, and wherein light-source control system comprises 254 nm ultraviolet detectors and a controller.
This group low-pressure mercury discharge standard lamp comprises the straight lamp of 3 same sizes, identical parameters, and its structure as shown in Figure 2.The fluorescent tube 1 of low pressure mercury lamp standard lamp adopts the quartz ampoule of high permeability to make, diameter 19 mm, pipe range 80 cm, and tube wall does not apply fluorescent material, and the ultra-violet radiation that therefore low-pressure mercury vapour electric discharge produces exports and directly appears from tube wall.The filament of what the filament 2 of standard lamp adopted is pressure common mercury lamp.Standard lamp has a glass water jacket 3, directly sealing-in is on fluorescent tube 1 outer wall for this water jacket 3, and two ends outlet pass 4 is connected with outer loop water-bath.
The driving power of this system adopts the square wave power of 50 Hz, and power output is 160 W.In the start-up and operation process of low pressure mercury lamp standard lamp, driving power provides the heating current of 100 mA respectively to the filament 2 at standard lamp two, thus the stability of cathode fall in sustain discharge process.
What temperature-controlling system adopted is a water bath with thermostatic control, and the water-flow circuit of water-bath is connected with the outlet pass of standard lamp.Water temperature in water-bath setting and controlled circulation, guarantees the tube wall temperature of water temperature lower than standard lamp during duty, thus on the tube wall of standard lamp, produces the cold junction of constant temperature, ensure that the stability of mercury vapor pressure in lamp.
In addition, light-source control system regulates the output current of driving power according to the fluctuation of radiation, guarantees discharge stability, and radiant output fluctuation is less than 1%.When standard lamp normally works, the radiation intensity of the real-time Standard of Monitoring lamp of 254 nm ultraviolet detector in control system, and monitor signal is transferred to controller, the backfeed loop via controller regulates the output current of driving power, guarantees standard lamp stable discharging.
Three standard lamps of this system are demarcated respectively through national legal unit of measurement, can mutually calibrate.This system can simultaneously as 254 nm spoke luminance standards, radiant energy flux standard and irradiation level standard.
Low pressure mercury lamp modular system provided by the invention can provide stable radiant output, can be used as spectral line source to calibrate the wavelength of checkout equipment, also can be used for calibrating the checkout equipments such as ultraviolet integrating sphere, radiation illuminometer, for actual production and light source detection provide reliable radiation standard as ultraviolet primary standard light source.
Claims (4)
1., for the low pressure mercury lamp modular system that uviol lamp detects and calibrates, it is characterized in that: comprise at least 1 group low-pressure mercury discharge standard lamp, driving power, light-source control system and temperature-controlling system; Wherein:
Often organize the mercury discharge lamp that low-pressure mercury discharge standard lamp at least comprises 3 identical types, identical parameters; Each mercury discharge lamp is all demarcated through national legal unit of measurement, and the multiple mercury discharge lamp lamps often organized can correct mutually;
Described driving power adopts stable square wave power or rectangular pulse power supply, frequency range 50 Hz ~ 50 kHz;
Described temperature-controlling system manufactures constant temperature cold junction on the tube wall to low-pressure mercury discharge standard lamp, guarantees the working temperature constant of cold junction place liquid mercury or amalgam, maintains the stability of mercury vapor pressure in lamp; Described temperature-controlling system adopts water bath with thermostatic control or oil bath to manufacture liquid-circulating and controls cold junction temperature;
Described light-source control system comprises 1 detector and 1 controller, and detector for detecting the radiation intensity of low-pressure mercury discharge standard lamp, and regulates the output of driving power, to improve the stability of discharge lamp via the backfeed loop of controller.
2. low pressure mercury lamp modular system according to claim 1, is characterized in that: described mercury discharge lamp is the uviol lamp not being coated with fluorescent material, adopts quartz ampoule to make; The power density scope of mercury discharge lamp is 5 ~ 500 W/m.
3. low pressure mercury lamp modular system according to claim 1 and 2, it is characterized in that: the filament of described mercury discharge lamp adopts pipeline start up by preheating, normal work by external power source heat filament, makes cathode hot spot remain on 900 ~ 1000 DEG C, to improve the stability of cathode fall afterwards.
4. low pressure mercury lamp modular system according to claim 1, is characterized in that: described detector adopts ultraviolet detector, is used for measuring specific UV wavelength, or measures whole ultraviolet band radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099656.8A CN104776330A (en) | 2015-03-07 | 2015-03-07 | Low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099656.8A CN104776330A (en) | 2015-03-07 | 2015-03-07 | Low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration |
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| CN104776330A true CN104776330A (en) | 2015-07-15 |
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| CN201510099656.8A Pending CN104776330A (en) | 2015-03-07 | 2015-03-07 | Low-pressure mercury lamp standard system for ultraviolet lamp detection and calibration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI621152B (en) * | 2015-12-10 | 2018-04-11 | 岩崎電氣股份有限公司 | Low-pressure mercury lamp and apparatus using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217846A (en) * | 2008-01-11 | 2008-07-09 | 中国科学院空间科学与应用研究中心 | Low pressure spectrum mercury lamp starting igniting power source for wavelength scaling |
| JP2012182014A (en) * | 2011-03-01 | 2012-09-20 | Ushio Inc | Light source device |
| CN103325661A (en) * | 2012-03-22 | 2013-09-25 | 北京爱德邦科技发展有限公司 | Field ultraviolet electrodeless lamp |
| CN103531415A (en) * | 2013-10-21 | 2014-01-22 | 浙江开元光电照明科技有限公司 | Lamp manufacturing simulation device of electrodeless fluorescent lamp |
| CN205048200U (en) * | 2015-03-07 | 2016-02-24 | 复旦大学 | A low pressure mercury lamp modular system that is used for ultraviolet lamp to detect and calibrate |
-
2015
- 2015-03-07 CN CN201510099656.8A patent/CN104776330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217846A (en) * | 2008-01-11 | 2008-07-09 | 中国科学院空间科学与应用研究中心 | Low pressure spectrum mercury lamp starting igniting power source for wavelength scaling |
| JP2012182014A (en) * | 2011-03-01 | 2012-09-20 | Ushio Inc | Light source device |
| CN103325661A (en) * | 2012-03-22 | 2013-09-25 | 北京爱德邦科技发展有限公司 | Field ultraviolet electrodeless lamp |
| CN103531415A (en) * | 2013-10-21 | 2014-01-22 | 浙江开元光电照明科技有限公司 | Lamp manufacturing simulation device of electrodeless fluorescent lamp |
| CN205048200U (en) * | 2015-03-07 | 2016-02-24 | 复旦大学 | A low pressure mercury lamp modular system that is used for ultraviolet lamp to detect and calibrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI621152B (en) * | 2015-12-10 | 2018-04-11 | 岩崎電氣股份有限公司 | Low-pressure mercury lamp and apparatus using the same |
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Application publication date: 20150715 |
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