CN107727594A - The multisensor switching device of double beam spectrophotometer - Google Patents
The multisensor switching device of double beam spectrophotometer Download PDFInfo
- Publication number
- CN107727594A CN107727594A CN201711192386.0A CN201711192386A CN107727594A CN 107727594 A CN107727594 A CN 107727594A CN 201711192386 A CN201711192386 A CN 201711192386A CN 107727594 A CN107727594 A CN 107727594A
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- Prior art keywords
- light path
- swing arm
- switching device
- photoelectric conversion
- stroke
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 230000005622 photoelectricity Effects 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims description 14
- 230000005693 optoelectronics Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000002835 absorbance Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/317—Special constructive features
Abstract
The invention discloses the multisensor switching device of double beam spectrophotometer, including two photoelectric conversion parts and two reflective group, also include reflected light path switching device, reflected light path switching device includes a swing arm, swing arm is rotatably connected on a base, the light path switched mirror of reciprocally swinging therewith is fixed with swing arm, the swinging track of light path switched mirror intersects with two reflective group of light path reflection trace, when switched mirror is in the light path reflection trace intersection location with two reflective group, light path is reflexed to one of photoelectricity photoelectric conversion part by switched mirror；In light path reflection trace of the switched mirror away from two reflective group, optical signal is not reflexed to another photoelectric conversion part by two retroreflective components.After the present invention facilitates the journey amount of a sensor to exceed, switch another, can be simple in construction with according to needing to switch, it is easy to use.
Description
Technical field
The present invention relates to spectrophotometer field, the multisensor switching of specifically a kind of double beam spectrophotometer
Device.
Background technology
Spectrophotometer is the device for being measured to absorption spectrum.In spectrophotometer, exist near
Visible Ultraviolet Light-splitting photometer that infrared portion to the spectrum of visible section, ultraviolet portion measures, for entering to the spectrum in infrared portion
Infrared spectrophotometer of row measurement etc..
Chinese patent Authorization Notice No. is CN104007074, discloses a kind of double beam spectrophotometer, including：It is orthogonal
Signal generation, photoelectric conversion part, two reflective group, periodic feedback portion, motor, signal amplifying part, Analog to Digital Converter section and FPGA
Analysis portion.It is pre- with reference to predetermined sequence optical signal and sample that orthogonal signalling generating unit, which is used for reference beam and sample beam blocking,
Sequencing row optical signal.Photoelectric conversion part is arranged on the side of orthogonal signalling generating unit, and predetermined sequence optical signal is referred to for receiving
Dark current signals are produced with sample predetermined sequence optical signal and based on the 3rd predetermined sequence, and predetermined sequence light will be referred to and believed
Number, the composite optical signal that merges of sample predetermined sequence optical signal and dark current signals be converted to compound electric signal；Two
Reflective group, opto-electronic conversion will be reflexed to respectively with reference to predetermined sequence optical signal and sample predetermined sequence optical signal at a certain angle by setting
Portion；Amplify converter section, be connected with photoelectric conversion part, for compound electric signal to be enlarged into amplification compound electric signal and will be amplified
Compound electric signal is converted to digital complex electric signal；And FPGA analysis portions, it is connected with amplification converter section, for receiving numeral
Compound electric signal is simultaneously gone out with reference to predetermined sequence optical signal, sample predetermined sequence optical signal by reducing formula separating reducing accordingly
And dark current signals, the absorbance of sample is calculated further according to absorbance formula.
In the prior art due to using a photoelectric conversion part, when a photoelectric conversion part can not reach measurement range,
It can not then use.The applicant's innovation and creation present patent application technology for this.
The content of the invention
The present invention is directed to existing technological deficiency, there is provided a kind of dual-beam spectrophotometric simple in construction, easy to use
The multisensor switching device of meter.
To achieve the above object, the technical solution adopted in the present invention is：
The multisensor switching device of double beam spectrophotometer, including photoelectric conversion part and two reflective group, its feature
It is：The photoelectric conversion part has two；Also include reflected light path switching device, reflected light path switching device includes a pendulum
Arm, swing arm are rotatably connected on a base, and the light path switched mirror of reciprocally swinging therewith is fixed with swing arm, and light path is cut
The swinging track for changing speculum intersects with two reflective group of light path reflection trace, is in and two reflective group in switched mirror
Light path reflection trace intersection location when, light path is reflexed to one of photoelectricity photoelectric conversion part by switched mirror；Switching
When speculum is away from two reflective group of light path reflection trace, optical signal is not reflexed to another opto-electronic conversion by two retroreflective components
Portion.
The multisensor switching device of double beam spectrophotometer as described above, it is characterised in that：Also include driving pendulum
The drive device of arm swing, drive device include PLC, servomotor and stroke optoelectronic switch；
The swing arm is provided with lug, and the stroke photoswitc is fixedly mounted on the base side, and stroke photoelectricity is opened
Light is provided with the groove being mutually embedded in the lug oscillating stroke initial position, and is correspondingly installed on photosensitive on the cell wall of groove both sides connect
Receipts portion and light source emitting part, for feeding back the lug oscillating stroke；
The stroke optoelectronic switch, servomotor are connected with PLC respectively, and PLC receives stroke photoelectricity and opened
OFF signal is reversely rotated with controlling servomotor driving swing arm to rotate forward set angle to switching-over light path position or driving swing arm
It is reset to initial position.
The multisensor switching device of double beam spectrophotometer as described above, it is characterised in that：Also include amplification to turn
Portion is changed, is connected with photoelectric conversion part, for compound electric signal to be enlarged into amplification compound electric signal and compound telecommunications will be amplified
Number be converted to digital complex electric signal；And FPGA analysis portions, it is connected with amplification converter section.
Advantages of the present invention is as follows：Photoelectric conversion part has two, and the light path with two reflective group is in switched mirror
During reflection trace intersection location, light path is reflexed to one of photoelectricity photoelectric conversion part by switched mirror；In switched mirror
During away from two reflective group of light path reflection trace, optical signal is not reflexed to another photoelectric conversion part by two retroreflective components, this
After the structure design of sample facilitates the journey amount of a sensor to exceed, switch another, can be simple in construction with according to needing to switch,
It is easy to use.
Brief description of the drawings
Fig. 1 is reflected light path switching device structural representation in the present invention.
Fig. 2 is one of structural representation of the invention applied on photometer.
Fig. 3 is that the present invention applies two of the structural representation on photometer.
Wherein, 11 first photoelectric conversion parts, 21 first speculums, 22 second speculums, 23 the 3rd speculums, 31 swing arms,
311 lugs, 32 bases, 33 light path switched mirrors, 41 servomotors, 42 stroke optoelectronic switches, 421 grooves.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
：The multisensor switching device of double beam spectrophotometer, including two photoelectricity turn
Change portion, two reflective group, reflected light path switching device and drive device.
In the application, photoelectric conversion part, respectively the first photoelectric conversion part 11 and the second photoelectric conversion part, join for receiving
Examine the reference beam optical signal and sample beam optical signal of predetermined sequence, photoelectric conversion part is by reference beam optical signal, sample light
The composite optical signal that beam optical signal merges is converted to compound electric signal；
In the application, two reflective group, one reflective group include the first speculum 21, the second speculum 22, this reflective group
The reference beam of predetermined sequence is reflexed into the first photoelectric conversion part 11 at a certain angle；Another reflective group includes the 3rd reflection
Mirror 23, the sample beam of predetermined sequence is reflexed to the first photoelectric conversion part 11 by this reflective group at a certain angle.
In the application, reflected light path switching device includes a swing arm 31, and swing arm 31 is rotatably connected on a base 32, driving
Device driving swing arm 31 is swung, and the light path switched mirror 33 of reciprocally swinging therewith, light path switching are fixed with swing arm 31
The swinging track of speculum 33 intersects with two reflective group of light path reflection trace, switched mirror 33 be in two it is reflective
During the light path reflection trace intersection location of group, light path is reflexed to the second photoelectric conversion part and (not shown in figure by switched mirror 33
Go out)；In light path reflection trace of the switched mirror 33 away from two reflective group, two retroreflective components do not reflex to optical signal
First photoelectric conversion part 11.
In the application, drive device includes PLC, servomotor 41 and stroke optoelectronic switch 42.Servomotor 41
On base 32, swing arm 31 is provided with lug 311, and stroke photoswitc 42 is fixedly mounted on the side of base 32, stroke light
Establish light 42 by cable and be provided with the groove 421 being mutually embedded in the oscillating stroke initial position of lug 311, and be correspondingly installed on the both sides of groove 421
Photosensitive acceptance division and light source emitting part on cell wall, for feeding back the oscillating stroke of lug 311.Stroke optoelectronic switch 42, servomotor
41 are connected with PLC respectively, and PLC receives the signal of stroke optoelectronic switch 42 to control servomotor 41 to drive swing arm
31, which rotate forward set angle to switching-over light path position or driving swing arm 31, reversely rotates and is reset to initial position.
Further improve：Base 32 is provided with strip connecting hole (not shown), is connected with strip connecting hole
The attachment screw that can be slided along its length, base 32, which is connected by screw, to be fixed on photometer, and base 32 is by thereon
Strip connecting hole adjust forward and backward position.During regulation, attachment screw is first unclamped, moves forward and backward base to correct position, then
Attachment screw is locked, during regulation, attachment screw and photometer position regulation are motionless, without punching again, regulation side
Just.
Further improve：Also include amplification converter section, be connected with photoelectric conversion part, for compound electric signal to be amplified
Digital complex electric signal is converted to for amplification compound electric signal and by amplification compound electric signal；And FPGA analysis portions, with amplification
Converter section is connected, for receiving digital complex electric signal and operation program calculates the absorbance of sample.
It the above is only several preferred embodiments of the present invention, any formal limitation not made to the present invention, it is all
It is obtaining and phase of the present invention for the modification in the shape or structure made according to the technical spirit of the present invention to above example
Same or similar technical scheme, belongs to the scope of protection of the invention.
Claims (3)
1. the multisensor switching device of double beam spectrophotometer, including photoelectric conversion part and two reflective group, its feature exists
In：The photoelectric conversion part has two；Also including reflected light path switching device, reflected light path switching device includes a swing arm,
Swing arm is rotatably connected on a base, and the light path switched mirror of reciprocally swinging therewith, light path switching are fixed with swing arm
The swinging track of speculum intersects with two reflective group of light path reflection trace, is in and two reflective group in switched mirror
During light path reflection trace intersection location, light path is reflexed to one of photoelectricity photoelectric conversion part by switched mirror；It is anti-in switching
When penetrating mirror away from two reflective group of light path reflection trace, optical signal is not reflexed to another opto-electronic conversion by two retroreflective components
Portion.
2. the multisensor switching device of double beam spectrophotometer according to claim 1, it is characterised in that：Also include
The drive device for driving swing arm to swing, drive device include PLC, servomotor and stroke optoelectronic switch；
The swing arm is provided with lug, and the stroke photoswitc is fixedly mounted on the base side, and stroke photoswitc is set
There is the groove being mutually embedded in the lug oscillating stroke initial position, and be correspondingly installed on photosensitive acceptance division on the cell wall of groove both sides
And light source emitting part, for feeding back the lug oscillating stroke；
The stroke optoelectronic switch, servomotor are connected with PLC respectively, and PLC receives stroke optoelectronic switch letter
Number with control servomotor driving swing arm rotate forward set angle to switching-over light path position or driving swing arm reversely rotate reset
To initial position.
3. the multisensor switching device of double beam spectrophotometer according to claim 2, it is characterised in that：Also include
Amplify converter section, be connected with photoelectric conversion part, for compound electric signal to be enlarged into amplification compound electric signal and will be amplified again
Close electric signal and be converted to digital complex electric signal；And FPGA analysis portions, it is connected with amplification converter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711192386.0A CN107727594A (en) | 2017-11-24 | 2017-11-24 | The multisensor switching device of double beam spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711192386.0A CN107727594A (en) | 2017-11-24 | 2017-11-24 | The multisensor switching device of double beam spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727594A true CN107727594A (en) | 2018-02-23 |
Family
ID=61219178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711192386.0A Pending CN107727594A (en) | 2017-11-24 | 2017-11-24 | The multisensor switching device of double beam spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727594A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008346A1 (en) * | 2002-07-09 | 2004-01-15 | National Inst. Of Advanced Ind. Science And Tech. | Optical system for measurement of optical constant |
| CN202928690U (en) * | 2012-12-10 | 2013-05-08 | 中国电子科技集团公司第十三研究所 | LED fluorescent lamp test fixture |
| CN203386016U (en) * | 2013-07-11 | 2014-01-08 | 深圳市大族激光科技股份有限公司 | Light path switching device |
| CN104007074A (en) * | 2014-05-26 | 2014-08-27 | 上海理工大学 | Double-beam spectrophotometer and collection analysis processing method thereof |
| CN203955936U (en) * | 2014-06-12 | 2014-11-26 | 金德鑫科技（深圳）有限公司 | General-purpose positioning component |
| CN204043552U (en) * | 2014-07-17 | 2014-12-24 | 成都航利航空科技有限责任公司 | Multifunctional meter rack device |
| CN204390046U (en) * | 2014-09-18 | 2015-06-10 | 中国船舶重工集团公司第七一七研究所 | A kind of light path switching device |
| CN204575537U (en) * | 2015-02-15 | 2015-08-19 | 安徽精怡科学仪器科技有限公司 | A kind of dual operational mode fluorospectrophotometer |
| CN205426761U (en) * | 2015-11-20 | 2016-08-03 | 天津市拓普仪器有限公司 | Manual auto -change over device of spectrophotometer receiver |
| CN105973829A (en) * | 2016-06-28 | 2016-09-28 | 天津天华光子科技有限公司 | Double-light-beam infrared spectrophotometer with double infrared detectors |
| CN207571016U (en) * | 2017-11-24 | 2018-07-03 | 武汉量谱精密仪器有限公司 | The multisensor switching device of double beam spectrophotometer |
-
2017
- 2017-11-24 CN CN201711192386.0A patent/CN107727594A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008346A1 (en) * | 2002-07-09 | 2004-01-15 | National Inst. Of Advanced Ind. Science And Tech. | Optical system for measurement of optical constant |
| CN202928690U (en) * | 2012-12-10 | 2013-05-08 | 中国电子科技集团公司第十三研究所 | LED fluorescent lamp test fixture |
| CN203386016U (en) * | 2013-07-11 | 2014-01-08 | 深圳市大族激光科技股份有限公司 | Light path switching device |
| CN104007074A (en) * | 2014-05-26 | 2014-08-27 | 上海理工大学 | Double-beam spectrophotometer and collection analysis processing method thereof |
| CN203955936U (en) * | 2014-06-12 | 2014-11-26 | 金德鑫科技（深圳）有限公司 | General-purpose positioning component |
| CN204043552U (en) * | 2014-07-17 | 2014-12-24 | 成都航利航空科技有限责任公司 | Multifunctional meter rack device |
| CN204390046U (en) * | 2014-09-18 | 2015-06-10 | 中国船舶重工集团公司第七一七研究所 | A kind of light path switching device |
| CN204575537U (en) * | 2015-02-15 | 2015-08-19 | 安徽精怡科学仪器科技有限公司 | A kind of dual operational mode fluorospectrophotometer |
| CN205426761U (en) * | 2015-11-20 | 2016-08-03 | 天津市拓普仪器有限公司 | Manual auto -change over device of spectrophotometer receiver |
| CN105973829A (en) * | 2016-06-28 | 2016-09-28 | 天津天华光子科技有限公司 | Double-light-beam infrared spectrophotometer with double infrared detectors |
| CN207571016U (en) * | 2017-11-24 | 2018-07-03 | 武汉量谱精密仪器有限公司 | The multisensor switching device of double beam spectrophotometer |
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Address after: 430070 208B-1 room 38, Hong Tu Road, general road street, East and West Lake District, Wuhan, Hubei (12) Applicant after: Wuhan quantitative precision instrument Co., Ltd. Address before: 430070 No. 43, 1st floor, lotus market, Shi Pai Ling, Hongshan District, Wuhan, Hubei. Applicant before: Wuhan quantitative precision instrument Co., Ltd. |