CN207571016U - The multisensor switching device of double beam spectrophotometer - Google Patents
The multisensor switching device of double beam spectrophotometer Download PDFInfo
- Publication number
- CN207571016U CN207571016U CN201721591955.4U CN201721591955U CN207571016U CN 207571016 U CN207571016 U CN 207571016U CN 201721591955 U CN201721591955 U CN 201721591955U CN 207571016 U CN207571016 U CN 207571016U
- Authority
- CN
- China
- Prior art keywords
- light path
- swing arm
- switching device
- photoelectric conversion
- stroke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Spectrometry And Color Measurement (AREA)
Abstract
The utility model discloses the multisensor switching devices of double beam spectrophotometer, including two photoelectric conversion parts and two reflective group, reflected light path switching device is further included, reflected light path switching device includes a swing arm, swing arm is rotatably connected on a pedestal, the light path switched mirror of reciprocally swinging therewith is fixed in 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 far from two reflective group, optical signal is not reflexed to another photoelectric conversion part by two retroreflective components.The utility model provides a kind of simple in structure, multisensor switching device of double beam spectrophotometer easy to use.
Description
Technical field
The utility model is related to spectrophotometer field, specifically a kind of multisensor of double beam spectrophotometer
Switching device.
Background technology
Spectrophotometer is the device for being measured to absorption spectrum.In spectrophotometer, exist near
Visible Ultraviolet Light-splitting photometer that the spectrum of infrared portion to visible section, ultraviolet portion measures, for the spectrum to infrared portion into
Infrared spectrophotometer that row measures 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, for receiving with reference to predetermined sequence optical signal
It generates dark current signals with sample predetermined sequence optical signal and based on third predetermined sequence and predetermined sequence light will be referred to and believe
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 number
Compound electric signal and pass through accordingly reduction formula separating reducing go out with reference to predetermined sequence optical signal, sample predetermined sequence optical signal
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 cannot reach measurement range,
It can not then use.The applicant's innovation and creation present patent application technology thus.
Utility model content
The utility model is directed to existing technological deficiency, provides a kind of simple in structure, dual-beam light splitting easy to use
Photometric multisensor switching device.
To achieve the above object, technical solution is used by the utility model：
The multisensor switching device of double beam spectrophotometer, including photoelectric conversion part and two reflective group, feature
It is：There are two the photoelectric conversion parts；Reflected light path switching device is further included, reflected light path switching device includes a pendulum
Arm, swing arm are rotatably connected on a pedestal, and the light path switched mirror of reciprocally swinging therewith is fixed in 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 far 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：Driving pendulum is further included
The driving device of arm swing, driving device include PLC controller, servo motor and stroke optoelectronic switch；
The swing arm is equipped with lug, and the stroke photoswitc is fixedly mounted on the pedestal side, and stroke photoelectricity is opened
Light is equipped with the groove being mutually embedded in the lug oscillating stroke initial position and correspondence is 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, servo motor are connect respectively with PLC controller, and PLC controller receives stroke photoelectricity and opens
OFF signal is reversely rotated so that servo motor driving swing arm is controlled to rotate in the forward direction 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：Amplification has been further included 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.
The advantages of the utility model, is as follows：There are two photoelectric conversion parts, 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 far from two reflective group of light path reflection trace, optical signal is not reflexed to another opto-electronic conversion by two retroreflective components
Portion after such structure design facilitates the journey amount of a sensor to exceed, switches another, can be with according to needing to switch, structure
Simply, it is easy to use.
Description of the drawings
Fig. 1 is reflected light path switching device structure diagram in the utility model.
Fig. 2 applies one of structure diagram on photometer for the utility model.
Fig. 3 applies the second structural representation on photometer for the utility model.
Wherein, 11 first photoelectric conversion parts, 21 first speculums, 22 second speculums, 23 third speculums, 31 swing arms,
311 lugs, 32 pedestals, 33 light path switched mirrors, 41 servo motors, 42 stroke optoelectronic switches, 421 grooves.
Specific embodiment
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
：The multisensor switching device of double beam spectrophotometer turns including two photoelectricity
Change portion, two reflective group, reflected light path switching device and driving device.
In the application, photoelectric conversion part, respectively the first photoelectric conversion part 11 and the second photoelectric conversion part are joined for receiving
Examine the reference beam optical signal of predetermined sequence and sample beam optical signal, 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 third and reflects
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 pedestal 32, drives
Device driving swing arm 31 is swung, and the light path switched mirror 33 of reciprocally swinging therewith, light path switching are fixed in 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 far from two reflective group, two retroreflective components do not reflex to optical signal
First photoelectric conversion part 11.
In the application, driving device includes PLC controller, servo motor 41 and stroke optoelectronic switch 42.Servo motor 41
On pedestal 32, swing arm 31 is equipped with lug 311, and stroke photoswitc 42 is fixedly mounted on 32 side of pedestal, stroke light
It establishes light 42 by cable and is installed on 421 both sides of groove equipped with the groove 421 and correspondence being mutually embedded in 311 oscillating stroke initial position of lug
Photosensitive receiving part and light source emitting part on cell wall, for feeding back 311 oscillating stroke of lug.Stroke optoelectronic switch 42, servo motor
41 connect respectively with PLC controller, and PLC controller receives 42 signal of stroke optoelectronic switch so that servo motor 41 to be controlled to drive swing arm
31, which rotate in the forward direction set angle to switching-over light path position or the driving reverse rotation of swing arm 31, is reset to initial position.
It is further improved：Pedestal 32 is equipped with strip connecting hole (not shown), is connected in strip connecting hole
The attachment screw that can be slided along its length, pedestal 32, which is connected by screw, to be fixed on photometer, and pedestal 32 is by thereon
Strip connecting hole adjust forward and backward position.During adjusting, attachment screw is first unclamped, is moved forward and backward pedestal to suitable position, then
Attachment screw is locked, during adjusting, attachment screw and photometer position regulation are motionless, without punching again, adjusting side
Just.
It is further improved：Amplification converter section has been further included, has been 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 running the absorbance that program calculates sample.
It the above is only several preferred embodiments of the utility model, not the utility model made in any form
Limitation, the modification in shape or structure that every foundation the technical essence of the utility model makes above example obtain
The same or similar technical solution with the utility model belongs to the range of the utility model protection.
Claims (3)
1. the multisensor switching device of double beam spectrophotometer, including photoelectric conversion part and two reflective group, feature exists
In：There are two the photoelectric conversion parts；Reflected light path switching device has been further included, reflected light path switching device includes a swing arm,
Swing arm is rotatably connected on a pedestal, and the light path switched mirror of reciprocally swinging therewith, light path switching are fixed in 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 far 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：It has further included
The driving device that swing arm is driven to swing, driving device include PLC controller, servo motor and stroke optoelectronic switch；
The swing arm is equipped with lug, and the stroke photoswitc is fixedly mounted on the pedestal side, and stroke photoswitc is set
There are the groove being mutually embedded in the lug oscillating stroke initial position and correspondence to be installed on photosensitive receiving part on the cell wall of groove both sides
And light source emitting part, for feeding back the lug oscillating stroke；
The stroke optoelectronic switch, servo motor are connect respectively with PLC controller, and PLC controller receives stroke optoelectronic switch letter
Number with control servo motor driving swing arm rotate in the forward direction 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：It has further included
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
It closes electric signal and is 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 |
|---|---|---|---|
| CN201721591955.4U CN207571016U (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 |
|---|---|---|---|
| CN201721591955.4U CN207571016U (en) | 2017-11-24 | 2017-11-24 | The multisensor switching device of double beam spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207571016U true CN207571016U (en) | 2018-07-03 |
Family
ID=62691850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721591955.4U Active CN207571016U (en) | 2017-11-24 | 2017-11-24 | The multisensor switching device of double beam spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207571016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727594A (en) * | 2017-11-24 | 2018-02-23 | 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 CN201721591955.4U patent/CN207571016U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727594A (en) * | 2017-11-24 | 2018-02-23 | 武汉量谱精密仪器有限公司 | The multisensor switching device of double beam spectrophotometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111229737B (en) | Handheld laser cleaning dynamic compensation device | |
| CN107158579B (en) | Automatic positioning optical treatment instrument capable of visualizing skin lesion and control method | |
| CN206710256U (en) | A kind of Design of Vehicle Tail Gas Analyzer | |
| CN207571016U (en) | The multisensor switching device of double beam spectrophotometer | |
| CA2526993A1 (en) | Device that automatically tracks the position of the sun | |
| EP1607717A3 (en) | Position measuring system | |
| CN107144543A (en) | A kind of transmitting-receiving integrated open light path atmospheric detection system | |
| WO2004068537A3 (en) | Optoelectronic input device, method for production of such a device, and method for measuring the movement of an object with the help of such a device | |
| CN110834145A (en) | Control system for realizing full closed-loop focusing of high-power laser cutting head | |
| US7609364B2 (en) | Laser distance finder | |
| CN108747057B (en) | Follow-up light path transmission system applied to laser cutting device | |
| CN107727594A (en) | The multisensor switching device of double beam spectrophotometer | |
| CN101477379B (en) | Optoelectronic feedback oscillating control device | |
| CN204495326U (en) | A kind of stadimeter | |
| CN103631269A (en) | Rope traction type sun tracking device | |
| CN107738023B (en) | Automatic weld joint tracking device and method based on linear array CCD | |
| CN210051897U (en) | Combined distance measuring proximity sensor | |
| KR20120105311A (en) | Inspection robot with solar cell and method for controlling inspection robot | |
| ES2158806A1 (en) | Windscreen wiper mechanism | |
| JP2009121990A (en) | Spectroscopic measurement device | |
| CN211804387U (en) | Control system for realizing full closed-loop focusing of high-power laser cutting head | |
| CN111830406A (en) | Breaker action speed detection method and device and breaker | |
| CN206638577U (en) | A kind of telemetering motor vehicle tail laser beam emitting device | |
| CN216190451U (en) | Gantry crane track driving device and gantry crane | |
| CN218122243U (en) | Auxiliary device is used in laser radar production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 430070 208B-1 room 38, Hong Tu Road, general road street, East and West Lake District, Wuhan, Hubei (12) Patentee after: Wuhan quantitative precision instrument Co., Ltd. Address before: 430070 No. 43, 1st floor, lotus market, Shi Pai Ling, Hongshan District, Wuhan, Hubei. Patentee before: Wuhan quantitative precision instrument Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |