CN204439501U - A kind of self-checking device of on-line continuous particle concentration monitor - Google Patents
A kind of self-checking device of on-line continuous particle concentration monitor Download PDFInfo
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- CN204439501U CN204439501U CN201420779415.9U CN201420779415U CN204439501U CN 204439501 U CN204439501 U CN 204439501U CN 201420779415 U CN201420779415 U CN 201420779415U CN 204439501 U CN204439501 U CN 204439501U
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- amici prism
- lens
- reflective mirror
- light barrier
- mount pad
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Abstract
The utility model discloses a kind of self-checking device of on-line continuous particle concentration monitor, comprise and be arranged on mount pad, laser instrument, Amici prism, light barrier, reflective mirror, lens and photodetector, wherein above-mentioned laser instrument is arranged on the left part of mount pad, Amici prism is arranged on the right side of laser instrument, and the plane of incidence of Amici prism aims at the beam emissions mouth of laser instrument, light barrier is arranged on the bottom of Amici prism; Above-mentioned reflective mirror is arranged on the lower left quarter of light barrier.The utility model avoid common parallel light splitting piece output beam multiple reflections superposition, and can effectively improve because of temperature variation cause optical wavelength change time, improve light source power detection stability.
Description
Technical field
The utility model environmental monitoring field, refers in particular to a kind of self-checking device of on-line continuous particle concentration monitor.
Background technology
Be mainly derived from fire coal at current China required energy of developing the economy, particle and the sulphuric dioxide of coal-fired release are the major pollutants causing atmospheric environment to worsen.Particle concentration monitor is instrument indispensable in environmental monitoring, and this kind of monitor can provide fast to environment supervision department, reliably and accurately quantitative soot emissions data.According to the technical requirement HJ/T 75-2007 of environmental administration, HJ/T76-2007, for ensureing the accuracy of monitoring instrument itself, need to calibrate instrument.Existing calibrating installation needs manual intervention; Industrial monitoring instrument, its install environment, i.e. operating mode, often poor, have even in the high-altitude of tens meters, cause personnel to safeguard inconvenience; Existing pick-up unit adopts parallel spectroscope in addition, during calibration, often produce interference, due to large (-20 DEG C ~+50 DEG C of the ambient temperature range of instrument work, laser wavelength with temperature changes and changes, if spectroscope produces interference light, the stability that instrument detects just is difficult to meet design requirement.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of multiple reflections superposition avoiding common parallel light splitting piece output beam is provided, and can effectively improve because of temperature variation cause optical wavelength to change time, the self-checking device of on-line continuous particle concentration monitor of the stability that light source power detects.
The technical scheme that the utility model is taked is as follows: a kind of self-checking device of on-line continuous particle concentration monitor, comprise the laser instrument be arranged on mount pad, Amici prism, light barrier, reflective mirror, lens and photodetector, wherein above-mentioned laser instrument is arranged on the left part of mount pad, Amici prism is arranged on the right side of laser instrument, and the plane of incidence of Amici prism aims at the beam emissions mouth of laser instrument, light barrier is arranged on the bottom of Amici prism; Above-mentioned reflective mirror is arranged on the lower left quarter of light barrier, and the calibration beam of Amici prism injection is injected in reflective mirror, and through mirror reflection to lens, enters in photodetector through lens.
Preferably, described light barrier is connected on mount pad by rotating shaft, and light barrier connects the motor of peripheral hardware, and motor drives light barrier to rotate around the shaft, to make light barrier rotate to parallel position block calibration beam, or the right side rotated to Amici prism and reflective mirror makes calibration beam pass through.
Preferably, described reflective mirror, lens and photodetector are arranged on holder, and holder is arranged on mount pad, and are arranged on the bottom of Amici prism; Said lens is arranged on the left side of reflective mirror, and calibration beam enters in lens after mirror reflection; Above-mentioned photodetector is arranged on the left side of lens, and calibration beam, in lens incident light electric explorer, is calibrated.
Preferably, described mount pad is fixed on calibrating installation support body, and calibrating installation support body is arranged on the right side of mount pad.
The beneficial effects of the utility model are:
Self-checking device of the present utility model is a kind of self-checking device to on-line continuous particle concentration monitor, cost is low, can obtain stable light signal, and passes to monitoring instrument as a standard reference value, can automatically control periodically to calibrate monitoring instrument, easy to maintenance; Can calibrate in time, guarantee the accuracy of data, the maintenance that lowering apparatus runs; Without the need to manual intervention, automatically complete the calibration operation of instrument; Reduce labour intensity; Because calibrating installation support body, Amici prism, light barrier, the motor of control light barrier rotation, reflective mirror are all arranged on tool housing inside, therefore structurally there is dust-proof effect.Simultaneously, Amici prism of the present utility model can realize light beam to be divided into two bundles mutually orthogonal without interference light, thus avoid common parallel light splitting piece output beam multiple reflections superposition interfere, can effectively improve because of temperature variation cause optical wavelength change time, light source power detection stability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model self-checking device align mode.
Fig. 2 is the schematic diagram in Fig. 1 under self-checking device normal condition.
Fig. 3 is the light splitting schematic diagram of the utility model Amici prism.
Fig. 4 is the structural representation of Amici prism in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figures 1 to 4, the technical scheme that the utility model is taked is as follows: a kind of self-checking device with Amici prism, comprise and be arranged on mount pad 8, laser instrument 7, Amici prism 2, light barrier 3, reflective mirror 5, lens 6 and photodetector 9, wherein above-mentioned laser instrument 7 is arranged on the left part of mount pad 8, Amici prism 2 is arranged on the right side of laser instrument 7, and the incident surface A of Amici prism 2 aims at the beam emissions mouth of laser instrument 7, and light barrier 3 is arranged on the bottom of Amici prism 2; Above-mentioned reflective mirror 5 is arranged on the lower left quarter of light barrier 3, and the calibration beam that Amici prism 2 penetrates is injected in reflective mirror 5, and reflexes to lens 6 through reflective mirror 5, enters in photodetector 9 through lens 6.
Light barrier 3 is connected on mount pad 8 by rotating shaft, light barrier 3 connects the motor of peripheral hardware, motor drives light barrier 3 to rotate around the shaft, to make light barrier rotate to parallel position block calibration beam, or the right side rotated to Amici prism 2 and reflective mirror 5 makes calibration beam pass through.
Reflective mirror 5, lens 6 and photodetector 9 are arranged on holder 10, and holder 10 is arranged on mount pad 8, and are arranged on the bottom of Amici prism 2; Said lens 6 is arranged on the left side of reflective mirror 5, and calibration beam enters in lens 6 after reflective mirror 5 reflects; Above-mentioned photodetector 9 is arranged on the left side of lens 6, and calibration beam, in lens 6 incident light electric explorer 9, is calibrated.Mount pad 8 is fixed on calibrating installation support body 1, and calibrating installation support body 1 is arranged on the right side of mount pad 8.
Further, as shown in Figure 3,4, the left surface of Amici prism 2 of the present utility model is incident surface A, right flank is detection faces B, wherein, between the upper side of Amici prism 2 and detection faces B, be provided with the first inclined-plane D, between the downside of Amici prism 2 and incident surface A, be provided with the second inclined-plane C; The first angle F is formed between above-mentioned first inclined-plane D and the upper side of Amici prism 2, the second angle E is formed between second inclined-plane C and incident surface A, incident beam is injected in Amici prism 2 through incident surface A, detection faces B is injected after incident surface A refraction, face B reflects and forms calibration beam after refraction respectively and detect light beam after testing, calibration beam vertical sand shooting to the second inclined-plane C, and penetrate through the second inclined-plane C.The angle of the first angle F is respectively 100-150 degree, and the angle of the second angle E is 120-160 degree.
Further, as shown in Figure 3, the principle of work of the utility model Amici prism: spectroscope is A face towards incident beam, it is B face that injection detects light beam, when the incident beam that Laser emission goes out, incide light splitting eyeglass A face and produce two-beam: be reflected into alignment light, be refracted as detection light beam; When detecting light beam directive B face, again producing two-beam, being refracted as detection light beam, reflection then creates detection light beam, when it incides C face, because vertical with C face, no longer includes reflected light, directly penetrates calibration beam, doing so avoids interference light; Therefore, the multiple reflections superposition being avoided common parallel light splitting piece output beam by the design of Amici prism is interfered, thus effectively improve because of temperature variation cause optical wavelength change time, the stability of light source power detection.
Further, the utility model calibrating installation comprises calibrating installation support body, Amici prism, light barrier, control the motor that light barrier rotates, reflective mirror, light barrier is arranged on the middle part of calibrating installation support body, lens are provided with in the outside of calibrating installation support body front end, calibrating installation support body is provided with incidence channel and refraction passage, incidence channel faces the injection path of a generating laser injection laser, the receiving area of refraction channel alignment monitor optical signal receiver, lens are facing to refraction passage, described Amici prism is the specular surface body with specific refraction angle of particular design, the refract light of incident light after Amici prism refraction is from the injection of refraction passage, the emissive power of described generating laser and the action of motor all pass through Single-chip Controlling, the optical axis of incident light and the optical axis of refract light are at angle, reflective mirror is a mach copper fitting, light barrier is a mach alumiaum article, because the rotary motion of light barrier is by Electric Machine Control, and the action of the emissive power of generating laser and motor all passes through Single-chip Controlling.Further, the utility model calibrating installation support body is the structural member of a particular design, be provided with incidence channel and refraction passage, the tracks of light barrier, place the space of Amici prism, lens are provided with in the outside of the front end of calibrating installation support body, incidence channel faces the injection path of a generating laser injection laser, the receiving area of refraction channel alignment monitor optical signal receiver, lens face refraction passage, Amici prism be particular design without interference light prism, comprise the specular surface body that has special refraction effect, incident light is after Amici prism refraction, part refract light is from the injection of refraction passage, part detection light injects transmission channel, the emissive power of generating laser and the action of motor are all by Single-chip Controlling, and that is, with motion and the stopping of Single-chip Controlling laser power and motor, also record reading as with reference to value, when closing laser, the data recorded are zero point simultaneously, the optical axis of incident light is orthogonal with 90 of refract light degree, self-checking device is also provided with a mount pad, reflective mirror is fixed on mount pad, light barrier is driven by motor and is provided with two positions, and the injection path of laser is blocked in a position, is now align mode, refraction passage is blocked in another position, is now normal condition.Whole calibration process carries out under Single-chip Controlling; When needs are calibrated, motor drives light barrier to enter into light path, as Fig. 1 align mode, adjusts laser emitting power simultaneously, and refractive optical power is applicable to; When calibration process terminates, when getting back to normal operating conditions, light barrier, gets back to refractive light paths position, as Fig. 2 state.
Embodiment of the present utility model just introduces its embodiment, does not lie in and limits its protection domain.The technician of the industry can make some amendment under the inspiration of the present embodiment, therefore all equivalences done according to the utility model the scope of the claims change or modify, and all belong within the scope of the utility model Patent right requirement.
Claims (4)
1. the self-checking device of an on-line continuous particle concentration monitor, it is characterized in that: comprise the laser instrument (7) be arranged on mount pad (8), Amici prism (2), light barrier (3), reflective mirror (5), lens (6) and photodetector (9), wherein above-mentioned laser instrument (7) is arranged on the left part of mount pad (8), Amici prism (2) is arranged on the right side of laser instrument (7), and the plane of incidence (A) of Amici prism (2) aims at the beam emissions mouth of laser instrument (7), light barrier (3) is arranged on the bottom of Amici prism (2), above-mentioned reflective mirror (5) is arranged on the lower left quarter of light barrier (3), the calibration beam that Amici prism (2) penetrates is injected in reflective mirror (5), and reflex to lens (6) through reflective mirror (5), enter in photodetector (9) through lens (6).
2. the self-checking device of on-line continuous particle concentration monitor according to claim 1, it is characterized in that: described light barrier (3) is connected on mount pad (8) by rotating shaft, light barrier (3) connects the motor of peripheral hardware, motor drives light barrier (3) to rotate around the shaft, to make light barrier rotate to parallel position block calibration beam, or the right side rotated to Amici prism (2) and reflective mirror (5) makes calibration beam pass through.
3. the self-checking device of on-line continuous particle concentration monitor according to claim 2, it is characterized in that: described reflective mirror (5), lens (6) and photodetector (9) are arranged on holder (10), holder (10) is arranged on mount pad (8), and is arranged on the bottom of Amici prism (2); Said lens (6) is arranged on the left side of reflective mirror (5), and calibration beam enters in lens (6) after reflective mirror (5) reflection; Above-mentioned photodetector (9) is arranged on the left side of lens (6), and calibration beam, in lens (6) incident light electric explorer (9), is calibrated.
4. the self-checking device of on-line continuous particle concentration monitor according to claim 3, it is characterized in that: described mount pad (8) is fixed on calibrating installation support body (1), and calibrating installation support body (1) is arranged on the right side of mount pad (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779415.9U CN204439501U (en) | 2014-12-12 | 2014-12-12 | A kind of self-checking device of on-line continuous particle concentration monitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779415.9U CN204439501U (en) | 2014-12-12 | 2014-12-12 | A kind of self-checking device of on-line continuous particle concentration monitor |
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| CN204439501U true CN204439501U (en) | 2015-07-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547948A (en) * | 2016-01-27 | 2016-05-04 | 重庆川仪分析仪器有限公司 | Automatic calibration device for dust concentration on-line monitoring |
| CN107121365A (en) * | 2016-02-25 | 2017-09-01 | 亮锐控股有限公司 | The zero point correction of grain density sensor |
| CN107328695A (en) * | 2017-09-01 | 2017-11-07 | 北京攀藤科技有限公司 | Particulate matter quality concentration sensor and particulate matter quality concentration detection method |
| CN114324164A (en) * | 2021-12-30 | 2022-04-12 | 武汉比天科技有限责任公司 | Transmission-type smokemeter calibration method |
| CN115598507A (en) * | 2022-10-28 | 2023-01-13 | 河北圣昊光电科技有限公司（Cn） | Chip backlight detection structure and chip detection equipment |
-
2014
- 2014-12-12 CN CN201420779415.9U patent/CN204439501U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547948A (en) * | 2016-01-27 | 2016-05-04 | 重庆川仪分析仪器有限公司 | Automatic calibration device for dust concentration on-line monitoring |
| CN107121365A (en) * | 2016-02-25 | 2017-09-01 | 亮锐控股有限公司 | The zero point correction of grain density sensor |
| CN107328695A (en) * | 2017-09-01 | 2017-11-07 | 北京攀藤科技有限公司 | Particulate matter quality concentration sensor and particulate matter quality concentration detection method |
| CN114324164A (en) * | 2021-12-30 | 2022-04-12 | 武汉比天科技有限责任公司 | Transmission-type smokemeter calibration method |
| CN115598507A (en) * | 2022-10-28 | 2023-01-13 | 河北圣昊光电科技有限公司（Cn） | Chip backlight detection structure and chip detection equipment |
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Address after: 2909, 25th Floor, Building A, No. 2 Zhongguancun South Street, Haidian District, Beijing, 100088 Patentee after: Anrongxin Technology (Beijing) Co.,Ltd. Address before: 100096 Baijun Hongye Office Building 344, Yuxin Garden, Xisanqi, Haidian District, Beijing Patentee before: ANRONX TECHNOLOGY (BEJING) CO.,LTD. |