CN202230015U - Air monitoring instrument capable of reflecting long optical path - Google Patents
Air monitoring instrument capable of reflecting long optical path Download PDFInfo
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- CN202230015U CN202230015U CN201120347411XU CN201120347411U CN202230015U CN 202230015 U CN202230015 U CN 202230015U CN 201120347411X U CN201120347411X U CN 201120347411XU CN 201120347411 U CN201120347411 U CN 201120347411U CN 202230015 U CN202230015 U CN 202230015U
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Abstract
The utility model relates to an air monitoring instrument capable of reflecting a long optical path, which comprises a light source generation device (3) used for generating light signals, a primary light source reflecting device (4), a calibration device (5) used for calibrating the light signals, an analysis system (9) connected with the calibration device (5) and an auxiliary light source reflecting device (7), wherein the primary light source reflecting device (4) is used for changing a light path of the light signals generated by the light source generation device (3) and emitting the light signals out, and is fixed on a primary base (2) through a driving device (1). The auxiliary light source reflecting device (7) is fixed on an auxiliary base (6), and is used for receiving the light signals emitted by the primary light source reflecting device (4), reflecting the light signals back onto the primary light source reflecting device (4) and sending the light signals to the calibration device (5) through the primary light source reflecting device (4). The air monitoring instrument capable of reflecting the long optical path has the advantages of being capable of calibrating an instrument system in online mode due to the fact that the air monitoring instrument is provided with an automatic correcting device, being wider in test range due to the fact that a main machine can perform multidirectional measurement, and improving reflected energy due to the fact that a hollow pyramid prism is adopted for reflecting.
Description
Technical field
The utility model relates to a kind of air monitoring instrument, especially relates to a kind of reflection long optical path air monitoring instrument.
Background technology
For long light path DOAS (Differential Optical Absorption Spectroscopy) technology, it mainly is to utilize airborne trace contamination composition that the absorption characteristic of ultraviolet ray and visible light wave range is carried out qualitative and quantitative analysis.It can monitor multiple trace gas composition simultaneously, measurement range can from 100 meters to thousands of rice, have higher sensitivity.Usually be to produce optical radiation for long light path DOAS The Application of Technology, be transferred to air path through the telescopic system collimation, at the other end (50 through the transmitter that utilization is arranged on the skyscraper ... 200 meters) corner reflector is installed it is reflected.The light that reflects through air path is handled through spectrometer, obtains radiation spectrum and the spectrum of the lamp gas componant in the different and definite atmosphere that obtain them of comparing.Because each gas all has the characteristic absorption spectrum of oneself, the variation of analyzing spectrum just can confirm to absorb the concentration of gas and gas.But in the monitoring air, there is following weak point during gas concentration for existing long light path atmosphere testing tool: reconnaissance, the installation of the big gas tester of at first long light path; Because transmitter must select a point on a skyscraper when mounted; At a distance of 100 meters outer for receiver selects another point, middle need avoiding obstacles is still often after instrument is installed and used a period of time; Possibly produce new barrier at point-to-point transmission, just there is the problem of reconnaissance for the second time in this; Secondly because this remote reconnaissance setting is unfavorable for the big gas tester of long light path is keeped in repair, cost manpower and time, efficient is poor.
The utility model content
The utility model mainly is to solve the existing in prior technology technical matters; A kind of self-checking device that has is provided, can the on-line proving instrument system; . can carry out multi-faceted measurement by a main frame, test specification is wider; Adopt hollow prism of corner cube to reflect, improved the energy of reflection and adopted the ultraviolet difference technology, can monitor a kind of reflection long optical path air monitoring instrument of the multiple polluter in the atmosphere.
The above-mentioned technical matters of the utility model mainly is able to solve through following technical proposals:
A kind of reflection long optical path air monitoring instrument; It is characterized in that, comprise being used to produce light signal and being fixed on light source generating means on the main base, being used to change light signal light path that the light source generating means produces and main light source reflection unit, the caliberating device that is used for the nominal light signal, the analytic system 9 that links to each other with caliberating device 5 that this light signal is launched and being fixed on is used for light signal that the main light source reflection unit launches on the sub-mount and with the secondary light source reflection unit that on its reflected back main light source reflection unit and through the main light source reflection unit light signal is reached caliberating device through a drive unit.
At above-mentioned a kind of reflection long optical path air monitoring instrument, described main light source reflection unit comprises light source master tube, is arranged on light source master drum outer wall and can makes light signal pierce into the interior optical signal generator of light source master tube, be arranged on the light signal reflection unit that is used to change the optical signal transmission circuit in the said light source master tube.
At above-mentioned a kind of reflection long optical path air monitoring instrument, said light signal reflection unit comprises being fixed on and is used to change above-mentioned optical signal generator in the light source master tube and injects the light signal reflector apparatus of the vertical light signal light path in the light source master tube, be arranged on light source master tube one end and be used for the light signal that said light signal reflector apparatus is reflected converted into parallel optical signal and this parallel optical signal is reflexed to the parallel optical signal that receives secondary light source reflection unit institute reflected back on the above-mentioned secondary light source reflection unit then at last parallel optical signal being reflexed to the spherical mirror on the above-mentioned caliberating device through the light signal reflector apparatus.
At above-mentioned a kind of reflection long optical path air monitoring instrument; Described light signal reflector apparatus comprises the principal reflection bearing that is fixed in the light source master tube, is arranged on the adjusting slider that is fixed with the principal reflection carriage on the principal reflection bearing and on it and the principal reflection carriage is reciprocatingly slided on said principal reflection bearing; Said adjusting slider is through regulating micrometer control; Described principal reflection carriage is provided with symmetrically arranged first principal reflection mirror of light source master tube central shaft and second principal reflection mirror, and described first principal reflection mirror and second principal reflection mirror all are connected with said principal reflection carriage through the revolution set screw.
At above-mentioned a kind of reflection long optical path air monitoring instrument, described secondary light source reflection unit comprises through an angle mirror tube rotary support and is fixed on the angle mirror tube on the angle mirror tube bearing and is arranged on the light signal angle mirror device in the said angle mirror tube.
At above-mentioned a kind of reflection long optical path air monitoring instrument, described light signal angle mirror device comprises three angles angle mirror of 45 degree each other,
At above-mentioned a kind of reflection long optical path air monitoring instrument, the angle of said first principal reflection mirror and second principal reflection mirror is 90 degree.
At above-mentioned a kind of reflection long optical path air monitoring instrument; This reflection long optical path air monitoring instrument also comprises a school electro-optical device that is used to proofread and correct light signal; Described school electro-optical device comprises that the school light that is arranged on the other end relative with above-mentioned spherical mirror in the above-mentioned light source master tube regulates seat, is fixed on said school light and regulates the school light microscopic support on the seat and be separately fixed at the first school light reflection mirror and the second school light reflection mirror light microscopic support two ends, said school and that be provided with school light microscopic carriage center rotational symmetry, and the angle of the said first school light reflection mirror and the second school light reflection mirror is 90 to spend.
At above-mentioned a kind of reflection long optical path air monitoring instrument; Described drive unit adds the commentaries on classics support through a main tube and above-mentioned light source master tube is fixed; Said main tube adds the commentaries on classics support can do circumferential 360 degree rotations under the drive unit effect; Said master's tube adds the commentaries on classics support and is provided with a pitching motor, and said main tube adds the commentaries on classics support and is connected fixing with said pitching motor output shaft.
At above-mentioned a kind of reflection long optical path air monitoring instrument; It is fixing that said school light microscopic support is regulated seat through a school light microscopic motor and above-mentioned school light; Said school light microscopic support is fixed on the light microscopic motor output shaft of school; And can under the driving of school light microscopic motor, do circumferential 360 rotations, and the radius-of-curvature of described concave mirror is between 20 centimetres to 500 centimetres, and above-mentioned first principal reflection mirror, second principal reflection mirror, the first school light reflection mirror, the second school light reflection mirror and spherical mirror materials used are quartz or ultraviolet optics silica glass material; Its reflecting surface is gold-plated or silver-colored, simultaneously protective film coating.
Therefore, the utlity model has following advantage: 1. have self-checking device, can the on-line proving instrument system; 2. can carry out multi-faceted measurement by a main frame, test specification is wider; 3, adopt hollow prism of corner cube to reflect, improved the energy of reflection; 4, adopt the ultraviolet difference technology, can monitor the multiple polluter in the atmosphere.
Description of drawings
Fig. 1 is a kind of main TV structure synoptic diagram of the utility model;
Fig. 2 is the plan structure synoptic diagram of Fig. 1;
Fig. 3 is the sectional structure synoptic diagram along the A-A hatching line of Fig. 1;
Fig. 4 is the left TV structure synoptic diagram of Fig. 1;
Fig. 5 is the light channel structure synoptic diagram of the duty of the utility model;
Fig. 6 is the light channel structure synoptic diagram of the align mode of the utility model;
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.Among the figure, drive unit 1, main tube add changes support 101, pitching motor 102, main base 2, light source generating means 3, main light source reflection unit 4, light source master tube 401, optical signal generator 402, light signal reflector apparatus 403, spherical mirror 404, principal reflection bearing 405, principal reflection carriage 406, adjusting slider 407, regulate micrometer 408 first principal reflection mirrors 409, second principal reflection mirror 410, revolution set screw 411, caliberating device 5, sub-mount 6, secondary light source reflection unit 7, angle mirror tube rotary support 701, angle mirror tube bearing 702, angle mirror tube 703, angle mirror 704, school electro-optical device 8, school light are regulated seat 801, school light microscopic support 802, the first school light reflection mirror 803, the second school light reflection mirror 804, school light microscopic motor 805, analytic system 9.
Embodiment:
A kind of reflection long optical path air monitoring instrument; Comprise the light source generating means 3 that is used to produce light signal, be used to change light signal light path that light source generating means 3 produces and this light signal launched and be fixed on the main light source reflection unit 4 on the main base 2, the caliberating device 5 that is used for the nominal light signal, the analytic system 9 that links to each other with caliberating device 5 and be fixed on through a drive unit 1 and be used for light signal that main light source reflection unit 4 launches on the sub-mount 6 and the secondary light source reflection unit 7 that on its reflected back main light source reflection unit 4 and through main light source reflection unit 4 light signal is reached caliberating device 5; Drive unit 1 adds commentaries on classics support 101 through a main tube to be fixed with above-mentioned light source master tube 401; Said main tube adds commentaries on classics support 101 can do circumferential 360 degree rotations under drive unit 1 effect; Said master's tube adds commentaries on classics support 101 and is provided with a pitching motor 102, and said main tube adds commentaries on classics support 101 and is connected fixing with said pitching motor 102 output shafts.
Main light source reflection unit 4 comprises light source master tube 401, be arranged on light source master tube 401 outer walls and can make light signal pierce into optical signal generator 402 in the light source master tube 401, be arranged on the light signal reflection unit that is used to change the optical signal transmission circuit in the said light source master tube 401.
Optical signal reflecting means comprises a fixed main tube 401 of the light source of the optical signal generator for changing the light source 402 enters the main tube 401 of the vertical optical path of the optical signal of the optical signal reflecting mirror unit 403, the main tube 401 disposed on one end of the light source for said optical signal reflected by the mirror device 403 converts the optical signal into parallel optical signal and the optical signal reflected parallel to said sub-light reflection means 7 then receives the sub-light reflection means 7 is reflected back parallel to the optical signal and finally parallel to the optical signal by the optical signal reflected to the mirror unit 403 on the calibration device 5 spherical mirror 404.
Light signal reflector apparatus 403 comprises the principal reflection bearing 405 that is fixed in the light source master tube 401, is arranged on the adjusting slider 407 that is fixed with principal reflection carriage 406 on the principal reflection bearing 405 and on it and principal reflection carriage 406 is reciprocatingly slided on said principal reflection bearing 405; Said adjusting slider 407 is through regulating micrometer 408 controls; Described principal reflection carriage 406 is provided with symmetrically arranged first principal reflection mirror 409 of light source master tube 401 central shafts and second principal reflection mirror 410, and described first principal reflection mirror 409 and second principal reflection mirror 410 all are connected with said principal reflection carriage 406 through revolution set screw 411.The angle of first principal reflection mirror 409 and second principal reflection mirror 410 is 90 degree.
Secondary light source reflection unit 7 comprises through an angle mirror tube rotary support 701 and is fixed on the angle mirror tube 703 on the angle mirror tube bearing 702 and is arranged on the light signal angle mirror device in the said angle mirror tube 703; Light signal angle mirror device comprises three angles angle mirror 704 of 45 degree each other
This reflection long optical path air monitoring instrument also comprises a school electro-optical device 8 that is used to proofread and correct light signal; Described school electro-optical device 8 comprise the school light that is arranged in the above-mentioned light source master tube 401 other end relative with above-mentioned spherical mirror 404 regulate seat 801, be fixed on said school light regulate the school light microscopic support 802 on the seat 801 and be separately fixed at light microscopic support 802 two ends, said school and with the symmetrically arranged first school light reflection mirror 803 of school light microscopic support 802 central shafts and the second school light reflection mirror 804, the angle of the said first school light reflection mirror 803 and the second school light reflection mirror 804 is 90 to spend.
It is fixing that school light microscopic support 802 is regulated seat 801 through a school light microscopic motor 805 and above-mentioned school light; Said school light microscopic support 802 is fixed on light microscopic motor 805 output shafts of school; And can under the driving of school light microscopic motor 805, do circumferential 360 rotations; The radius-of-curvature of described spherical mirror 404 is between 20 centimetres to 500 centimetres; Above-mentioned first principal reflection mirror 409, second principal reflection mirror 410, the first school light reflection mirror 803, the second school light reflection mirror 804 and spherical mirror 404 materials useds are quartz or ultraviolet optics silica glass material, and its reflecting surface is gold-plated or silver-colored, simultaneously protective film coating.
Need to prove; The drive unit 1 of the utility model and pitching motor 102 be used for driving main tube add change that support 101 is done circumferentially and luffing the time; Can adopt a gear train to carry out transmission respectively, gear train can adopt the form of principal and subordinate wheel, perhaps the form of internal tooth external tooth engagement; And combine actual conditions to adopt suitable gear ratio, make turning to of light source master tube 401 more accurate.In the present embodiment; Main light source reflection unit 4 can only need one; Secondary light source reflection unit 7 can be for a plurality of; Be installed in the orientation that different needs detect, 4 of main light source reflection units need be aimed at the air quality that secondary light source reflection unit 7 gets final product this orientation of real time on-line monitoring under the effect of drive unit 1 and pitching motor 102.
The duty of the utility model is divided into two steps, at first carries out the light path calibration, and is as shown in Figure 6; Start school light microscopic motor 805; Make the school light microscopic support 802 drive first school light reflection mirrors 803 and the second school light reflection mirror 804 rotate to Fig. 6 position, it is as shown in Figure 6 that light path is moved towards, and carries out the light path calibration; Then; Start school light microscopic motor 805 once more, make the school light microscopic support 802 drive first school light reflection mirrors 803 and the second school light reflection mirror 804 rotate to the horizontal level of Fig. 5, carry out atmospheric surveillance; It is as shown in Figure 5 that light path is moved towards, and last light signal gets into analyser and detects.
The utility model can make main light source reflection unit 4 trace into the position of the detection of being permitted automatically; Adopt the characteristic spectral line of different material to demarcate, in addition, optical signal generator 402 can be controlled automatically; Adopt the constant current constant voltage light source, institute's photometry spectral limit of the utility model is at 180-600 μ m.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although the possibility of using other term do not got rid of in terms such as this paper has used drive unit 1, main tube to add changes support 101, pitching motor 102, main base 2, light source generating means 3, main light source reflection unit 4, light source master tube 401, optical signal generator 402, light signal reflector apparatus 403, spherical mirror 404, principal reflection bearing 405, principal reflection carriage 406, adjusting slider 407, regulate micrometer 408 first principal reflection mirrors 409, second principal reflection mirror 410, revolution set screw 411, caliberating device 5, sub-mount 6, secondary light source reflection unit 7, angle mirror tube rotary support 701, angle mirror tube bearing 702, angle mirror tube 703, angle mirror 704, school electro-optical device 8, school light are regulated seat 801, school light microscopic support 802, the first school light reflection mirror 803, the second school light reflection mirror 804, school light microscopic motor 805, analytic system 9 morely.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. one kind reflects long optical path air monitoring instrument; It is characterized in that, comprise the light source generating means (3) that is used to produce light signal, be used to change light signal light path that light source generating means (3) produces and this light signal launched and be fixed on the main light source reflection unit (4) on the main base (2), the caliberating device (5) that is used for the nominal light signal, the analytic system (9) that links to each other with caliberating device (5) and be fixed on through a drive unit (1) and be used for light signal that main light source reflection unit (4) launches on the sub-mount (6) and the secondary light source reflection unit (7) that on its reflected back main light source reflection unit (4) and through main light source reflection unit (4) light signal is reached caliberating device (5).
2. a kind of reflection long optical path air monitoring instrument according to claim 1; It is characterized in that described main light source reflection unit (4) comprises light source master tube (401), is arranged on light source master tube (401) outer wall and can makes light signal pierce into the interior optical signal generator (402) of light source master tube (401), be arranged on the light signal reflection unit that is used to change the optical signal transmission circuit in the said light source master tube (401).
3. a kind of reflection long optical path air monitoring instrument according to claim 2; It is characterized in that said light signal reflection unit comprises being fixed on and is used to change above-mentioned optical signal generator (402) in the light source master tube (401) and injects the light signal reflector apparatus (403) of the vertical light signal light path in the light source master tube (401), be arranged on light source master tube (401) one ends and be used for the light signal that said light signal reflector apparatus (403) is reflected converted into parallel optical signal and this parallel optical signal is reflexed to the parallel optical signal that receives secondary light source reflection unit (7) institute reflected back on the above-mentioned secondary light source reflection unit (7) then at last parallel optical signal being reflexed to the spherical mirror (404) on the above-mentioned caliberating device (5) through light signal reflector apparatus (403).
4. a kind of reflection long optical path air monitoring instrument according to claim 3; It is characterized in that; Described light signal reflector apparatus (403) comprises the principal reflection bearing (405) that is fixed in the light source master tube (401), is arranged on the adjusting slider (407) that principal reflection bearing (405) was gone up and was fixed with on it principal reflection carriage (406) and principal reflection carriage (406) is reciprocatingly slided on said principal reflection bearing (405); Said adjusting slider (407) is through regulating micrometer (408) control; Described principal reflection carriage (406) is provided with light source master tube (401) symmetrically arranged first principal reflection mirror of central shaft (409) and second principal reflection mirror (410), and described first principal reflection mirror (409) and second principal reflection mirror (410) all are connected with said principal reflection carriage (406) through revolution set screw (411).
5. a kind of reflection long optical path air monitoring instrument according to claim 1; It is characterized in that described secondary light source reflection unit (7) comprises through an angle mirror tube rotary support (701) and is fixed on the angle mirror tube (703) on the angle mirror tube bearing (702) and is arranged on the light signal angle mirror device in the said angle mirror tube (703).
6. a kind of reflection long optical path air monitoring instrument according to claim 5 is characterized in that, described light signal angle mirror device comprises three angles angle mirror (704) of 45 degree each other,
7. a kind of reflection long optical path air monitoring instrument according to claim 4 is characterized in that, the angle of said first principal reflection mirror (409) and second principal reflection mirror (410) is 90 degree.
8. a kind of reflection long optical path air monitoring instrument according to claim 3; It is characterized in that; This reflection long optical path air monitoring instrument also comprises a school electro-optical device (8) that is used to proofread and correct light signal; Described school electro-optical device (8) comprise the school light that is arranged on the other end relative with above-mentioned spherical mirror (404) in the above-mentioned light source master tube (401) regulate seat (801), be fixed on said school light regulate the school light microscopic support (802) on the seat (801) and be separately fixed at said school light microscopic support (802) two ends and with the symmetrically arranged first school light reflection mirror (803) of school light microscopic support (802) central shaft and the second school light reflection mirror (804), the angle of the said first school light reflection mirror (803) and the second school light reflection mirror (804) is 90 to spend.
9. a kind of reflection long optical path air monitoring instrument according to claim 1; It is characterized in that; It is fixing with above-mentioned light source master tube (401) that described drive unit (1) adds commentaries on classics support (101) through a main tube; Said main tube adds to be changeed support (101) and can do circumferential 360 degree rotations down in drive unit (1) effect, and said main tube adds to be changeed support (101) and be provided with a pitching motor (102), and said main tube adds to be changeed support (101) and be connected with said pitching motor (102) output shaft and fix.
10. a kind of reflection long optical path air monitoring instrument according to claim 8; It is characterized in that; It is fixing that said school light microscopic support (802) is regulated seat (801) through a school light microscopic motor (805) and above-mentioned school light; Said school light microscopic support (802) is fixed on school light microscopic motor (805) output shaft; And can under the driving of school light microscopic motor (805), do circumferential 360 rotations, and the radius-of-curvature of described spherical mirror (404) is between 20 centimetres to 500 centimetres, and above-mentioned first principal reflection mirror (409), second principal reflection mirror (410), the first school light reflection mirror (803), the second school light reflection mirror (804) and spherical mirror (404) materials used are quartz or ultraviolet optics silica glass material; Its reflecting surface is gold-plated or silver-colored, simultaneously protective film coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120347411XU CN202230015U (en) | 2011-09-16 | 2011-09-16 | Air monitoring instrument capable of reflecting long optical path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120347411XU CN202230015U (en) | 2011-09-16 | 2011-09-16 | Air monitoring instrument capable of reflecting long optical path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230015U true CN202230015U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120347411XU Expired - Lifetime CN202230015U (en) | 2011-09-16 | 2011-09-16 | Air monitoring instrument capable of reflecting long optical path |
Country Status (1)
| Country | Link |
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| CN (1) | CN202230015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346134A (en) * | 2011-09-16 | 2012-02-08 | 武汉市天虹仪表有限责任公司 | Reflective long optical path air monitoring instrument |
| CN104897591A (en) * | 2015-06-08 | 2015-09-09 | 苏州谱道光电科技有限公司 | Sample measuring device |
| CN107449755A (en) * | 2017-09-21 | 2017-12-08 | 江汉大学 | Quasi-distributed optical fiber gas concentration detection system and method |
-
2011
- 2011-09-16 CN CN201120347411XU patent/CN202230015U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346134A (en) * | 2011-09-16 | 2012-02-08 | 武汉市天虹仪表有限责任公司 | Reflective long optical path air monitoring instrument |
| CN104897591A (en) * | 2015-06-08 | 2015-09-09 | 苏州谱道光电科技有限公司 | Sample measuring device |
| CN104897591B (en) * | 2015-06-08 | 2018-09-21 | 苏州谱道光电科技有限公司 | Sample measuring device |
| CN107449755A (en) * | 2017-09-21 | 2017-12-08 | 江汉大学 | Quasi-distributed optical fiber gas concentration detection system and method |
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| GR01 | Patent grant | ||
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Granted publication date: 20120523 |
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| CX01 | Expiry of patent term |