CN205538666U - Gaseous calibration device of rotary balance formula dual component - Google Patents
Gaseous calibration device of rotary balance formula dual component Download PDFInfo
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- CN205538666U CN205538666U CN201620082177.5U CN201620082177U CN205538666U CN 205538666 U CN205538666 U CN 205538666U CN 201620082177 U CN201620082177 U CN 201620082177U CN 205538666 U CN205538666 U CN 205538666U
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Abstract
The utility model discloses a gaseous calibration device of rotary balance formula dual component, including laser aligner, demarcate pond, three plane speculum, photoelectric detector, the laser of laser instrument transmission reflects the back respectively through planar mirror, two again and gets into and demarcate the pond behind the laser aligner collimation, demarcates the chi zhongyou gas that awaits measuring, laser gets into again by placing three reflections of planar mirror of demarcating the pond rear in behind the gas medium who demarcates in the pond, the laser that is reflected is detected by photoelectric detector, planar mirror one, two installs on slewing mechanism, and slewing mechanism and step motor's motor shaft are connected. The utility model discloses simple structure, stable performance, but wide application in gaseous automatic calibrations such as COCH4.
Description
Technical field
The utility model relates to a kind of spin balancing formula bi-component gas caliberating device, belongs to field of gas detection.
Background technology
Existing CO detecting system uses TDLAS technology to realize monitoring the CO concentration in air in real time, change laser instrument Injection Current by sawtooth scan signal and realize laser wavelength tuning, laser is through collimation, enter gas medium, reflected by corner reflector and off axis paraboloidal mirror again and collect, eventually pass through the optical signal after gas medium absorbs, be converted into the signal of telecommunication by detector, be finally finally inversed by the concentration information of gas medium.The absorption of light intensity is based on Beer-Lambert law, and after the light beam that a branch of frequency is V passes absorbing material, the light intensity on its path passed changes, and its formula is:
I(v)=I0(v)e-σ(v)cl
In formula: I0V () is incident intensity,
σ (v) is the absorption cross section of tested gas
C is the concentration of tested gas
L is light path
I (v) is the transmitted intensity after light beam passes the tested gas medium that an optical path length is
Accurate and effective for ensureing the data that CO detecting system detects, the most before the use or need it is carried out periodic calibrating in different environment.Traditional internal calibration light path uses fiber optic splitter that laser is divided into two bundles, and the most a branch of for interior light path calibration, another bundle is for opening the actual monitoring of light path.The subject matter of this method is: using fiber optic splitter light splitting to cause the laser intensity finally detected to die down, the efficiency of light energy utilization is low；Additionally to increase a detector at timing signal, this not only increases instrument cost, uses different detectors to add calibrated error at timing signal simultaneously.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of simple in construction, spin balancing formula bi-component gas robot scaling equipment.
For achieving the above object, the utility model takes techniques below scheme:
A kind of spin balancing formula bi-component gas caliberating device, it is characterized in that: include laser aligner, demarcate pond, three plane mirrors, photodetectors, the laser that laser instrument is launched is after laser aligner collimates, enter after plane mirror one, two reflects respectively again and demarcate pond, demarcate in pond and have gas to be measured, again by being placed in plane mirror three reflection demarcating rear, pond after gas medium in laser entrance demarcation pond, the laser reflected is detected by photodetector；Described plane mirror one, two is arranged on rotating mechanism, and rotating mechanism is connected with the machine shaft of stepper motor.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: described plane mirror one, two all uses 45 ° of plane mirrors.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterized in that: described plane mirror one, two is arranged on the two ends of rotating mechanism, the machine shaft of stepper motor is connected to the middle part of rotating mechanism and between plane mirror one, two, and the center of gravity of rotating mechanism is positioned on machine shaft.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: described plane mirror one, two is arranged on rotating mechanism by three screws and a steel ball and is realized a range of angular adjustment respectively.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: described rotating mechanism surface is black.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: the two ends in described demarcation pond are separately installed with lens, and light beam is focused to test surface, realize demarcating the sealing in pond simultaneously.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: described demarcation pond there are air inlet and gas outlet.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: described lens and three plane mirrors are on same optical axis.
Described a kind of spin balancing formula bi-component gas caliberating device, it is characterised in that: the surface of described three plane mirrors is coated with aluminium film.
The utility model is owing to taking above technical scheme, and it has the advantage that
After the utility model have employed this structure, only need to arrange a photodetector just can complete calibration process, solve and use fiber optic splitter light splitting to cause the laser intensity finally detected to die down so that the low problem of the efficiency of light energy utilization, save cost, also solve the problem using different detectors to increase calibrated error in calibration process simultaneously；Machine shaft is arranged between two pieces of plane mirrors, makes center of gravity be positioned on machine shaft, need not additionally increase balancing weight；Machine shaft is arranged on immediately below laser aligner, can effectively reduce instrument volume, and make demarcation optical path adjusting convenient.
Accompanying drawing explanation
Fig. 1 is demarcation light path schematic diagram of the present utility model.
Fig. 2 is spin balancing formula structure timing signal position view.
Fig. 3 is spin balancing formula structure non-timing signal position view.
Shown in figure: 1 laser aligner, 2 plane mirrors one, 3 plane mirrors two, 4 demarcate pond, 5 photodetectors, 6 plane mirrors three, 7 rotating mechanisms, 8 screws, 9 steel balls, 10 machine shafts, 11 stepper motors.
Detailed description of the invention
With embodiment, the utility model is described in detail below in conjunction with the accompanying drawings.
As Figure 1-3, a kind of spin balancing formula bi-component gas caliberating device, include laser aligner 1, demarcate 4, three, pond plane mirror 2,3,6, photodetector 5, the laser that laser instrument is launched is after laser aligner 1 collimates, enter after plane mirror one 2,23 reflects respectively again and demarcate pond 4, demarcate in pond 4 and have gas to be measured, laser is reflected by the plane mirror 36 being placed in demarcation rear, pond 4 after entering the gas medium demarcated in pond 4 again, and the laser reflected is detected by photodetector 5；Eventually pass through the optical signal after gas medium absorbs, it is converted into the signal of telecommunication by detector 5, it is finally inversed by the concentration information of gas medium, owing to the concentration of marked gas is known, by comparing with the concentration information being finally inversed by gas medium, be appreciated that gas to be measured when pre-test numerical value whether normal, and calibrate.Described plane mirror one 2,23 is arranged on rotating mechanism 7, and rotating mechanism 7 is connected with the machine shaft 10 of stepper motor 11.
Plane mirror one 2,23 all uses 45 ° of plane mirrors.Plane mirror one 2,23 is arranged on the two ends of rotating mechanism 7, and the machine shaft 10 of stepper motor 11 is connected to the middle part of rotating mechanism 7 and between plane mirror one 2,23, and the center of gravity of rotating mechanism 7 is positioned on machine shaft 10.Plane mirror one 2,23 is arranged on rotating mechanism 7 by three screws 8 and a steel ball 9 and is realized a range of angular adjustment respectively.
Rotating mechanism 7 surface is black.
The two ends demarcating pond 4 are separately installed with lens, and light beam is focused to test surface, realize demarcating the sealing in pond simultaneously.Demarcate in pond 4 and have air inlet and gas outlet.Lens and three plane mirrors 2,3,6 are on same optical axis.
The surface of three plane mirrors 2,3,6 is coated with aluminium film.
In the various embodiments described above, the structure of each parts, position and connecting is set all can be varied from, on the basis of technical solution of the present invention, the improvement that individual part is carried out and equivalents, should not get rid of outside protection scope of the present invention.
Claims (9)
1. a spin balancing formula bi-component gas caliberating device, it is characterized in that: include laser aligner, demarcate pond, three plane mirrors, photodetectors, the laser that laser instrument is launched is after laser aligner collimates, enter after plane mirror one, two reflects respectively again and demarcate pond, demarcate in pond and have gas to be measured, again by being placed in plane mirror three reflection demarcating rear, pond after gas medium in laser entrance demarcation pond, the laser reflected is detected by photodetector；Described plane mirror one, two is arranged on rotating mechanism, and rotating mechanism is connected with the machine shaft of stepper motor.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 1, it is characterised in that: described plane mirror one, two all uses 45 ° of plane mirrors.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 1 and 2, it is characterized in that: described plane mirror one, two is arranged on the two ends of rotating mechanism, the machine shaft of stepper motor is connected to the middle part of rotating mechanism and between plane mirror one, two, and the center of gravity of rotating mechanism is positioned on machine shaft.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 3, it is characterised in that: described plane mirror one, two is arranged on rotating mechanism by three screws and a steel ball and is realized a range of angular adjustment respectively.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 3, it is characterised in that: described rotating mechanism surface is black.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 1, it is characterised in that: the two ends in described demarcation pond are separately installed with lens.
7. according to a kind of spin balancing formula bi-component gas caliberating device described in claim 1 or 6, it is characterised in that: described demarcation pond there are air inlet and gas outlet.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 6, it is characterised in that: described lens and three plane mirrors are on same optical axis.
A kind of spin balancing formula bi-component gas caliberating device the most according to claim 1, it is characterised in that: the surface of described three plane mirrors is coated with aluminium film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082177.5U CN205538666U (en) | 2016-01-26 | 2016-01-26 | Gaseous calibration device of rotary balance formula dual component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082177.5U CN205538666U (en) | 2016-01-26 | 2016-01-26 | Gaseous calibration device of rotary balance formula dual component |
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| CN205538666U true CN205538666U (en) | 2016-08-31 |
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| CN201620082177.5U Active CN205538666U (en) | 2016-01-26 | 2016-01-26 | Gaseous calibration device of rotary balance formula dual component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539556A (en) * | 2017-01-06 | 2017-03-29 | 苏州微清医疗器械有限公司 | Confocal laser fundus imaging instrument |
| CN113514408A (en) * | 2021-06-28 | 2021-10-19 | 杭州谱育科技发展有限公司 | Ozone detection device with correction function and method |
-
2016
- 2016-01-26 CN CN201620082177.5U patent/CN205538666U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539556A (en) * | 2017-01-06 | 2017-03-29 | 苏州微清医疗器械有限公司 | Confocal laser fundus imaging instrument |
| CN113514408A (en) * | 2021-06-28 | 2021-10-19 | 杭州谱育科技发展有限公司 | Ozone detection device with correction function and method |
| CN113514408B (en) * | 2021-06-28 | 2024-06-11 | 杭州谱育科技发展有限公司 | Ozone detection device and method with correction function |
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