CN109001116A - A kind of entrance slit regulating mechanism and the Atomic Emission Spectrometer AES using it - Google Patents
A kind of entrance slit regulating mechanism and the Atomic Emission Spectrometer AES using it Download PDFInfo
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- CN109001116A CN109001116A CN201810873299.XA CN201810873299A CN109001116A CN 109001116 A CN109001116 A CN 109001116A CN 201810873299 A CN201810873299 A CN 201810873299A CN 109001116 A CN109001116 A CN 109001116A
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The present invention relates to spectrum analysis field, especially a kind of entrance slit regulating mechanism and the Atomic Emission Spectrometer AES using it；Entrance slit regulating mechanism includes: quadrangle support frame, two pieces of light barriers and longitudinal extension driving device；Horizontal swing arm end is connect with longitudinal movement arm and longitudinally fixed arm using flexible material in quadrangle support frame or articulated manner connects, so that quadrangle support frame is variable to turn to rectangle or parallelogram；Longitudinal extension driving device drives quadrangle support frame, and deformation occurs and then adjusts the width of entrance slit between two pieces of light barriers.Atomic Emission Spectrometer AES entrance slit regulating mechanism, the automation that the small-scale slit width of micron level can be achieved precisely is adjusted, incidence seam regulating mechanism structure is simple, manufacturing cost is low, the Atomic Emission Spectrometer AES low to the required precision of servo motor, easy for installation for occupying little space, being highly suitable to be applied for surveying oil tech progress oil plant detection using cremate atomic emissions.
Description
Technical field
The present invention relates to spectrum analysis field, especially a kind of entrance slit regulating mechanism and the atomic emissions light using it
Spectrometer.
Background technique
In fields such as atomic spectroscopic analysis, graduating spectroscopy, metering and detections, it is often necessary to occupy to the element of sample and
Its content is analyzed.Traditional spectroscopic analysis methods have: spectra methods mainly has atomic emission spectrometry, atomic absorption light
Spectrometry, UV-Vis Spectrophotometry, red well spectroscopic methodology etc..
With the continuous development of science and technology, oil plant is analyzed using spectrometer also more more and more universal.Existing spectrum glaze
Expect the principle of analysis, i.e. analyzed oil sample excites in the analytical gap of excitation chamber, and then the light of oil sample transmitting passes through optics
Fiber transmission, is introduced to entrance slit, is then divided into various different wave lengths after light reaches grating by incident eyeglass
Spectral line, different spectral lines are divided into the spectral line corresponding to each element in the exit slit focused on curved surface: the focusing curved surface
Photoelectric conversion element is set below, so that luminous energy is become electric energy.In each burning correct time interval will be pressed with electric current
Operation forms the voltage directly proportional to the received light quantity of photoelectric conversion element.This voltage is converted into number by reading circuit
It is worth, the standard curve data comparison stored in measured result and computer can calculate the concentration of element, last entirely to divide
Analysis result shows on the computer screen or is got with printer.
The Atomic Emission Spectrometer AES being applied in cremate oil content analyzer in the prior art generallys use major diameter Rowland circle structure,
To provide higher spectral resolution.Usual rowland circular diameter is more than 500mm, and spectral resolution is required better than 0.05nm, and this
Structure rowland circle spectrometer needs entrance slit width about 15um to 30um or so.Using the detection point of cremate Atomic Emission Spectrometer AES
When condensate oil material, measurement sample element is more, and different sample size differences are big, and measure spectrum signal energy mobility scale is big, to slit
Requirements at the higher level are proposed, if can give full play to instrument trait using the controllable slit of incident width, reach more high measurement accuracy
And the scope of application.But in the prior art since structure is complicated for variable gap, therefore used in traditional cremate Atomic Emission Spectrometer AES
Fixed width slit, slit width is optimised in a fixed width, therefore can only optimize measurement essence to a certain extent
Degree and the expansion scope of application, still have limitation in the majority in practical applications.
Summary of the invention
In view of the foregoing drawbacks, it is an object of the invention to propose one kind to can be applied to cremate, survey in oil tech can be into oil plant
The entrance slit regulating mechanism that row high-precision detects and the Atomic Emission Spectrometer AES using it.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of entrance slit regulating mechanism comprising: quadrangle support frame, two pieces of light barriers and longitudinal extension driving dress
It sets；The quadrangle support frame includes two horizontal swing arms, a longitudinal movement arm and a longitudinally fixed installing arm, two institutes
It states horizontal swing arm to be sequentially connected with the longitudinal movement arm and the longitudinally fixed installing arm, forming a tool, there are four the rings on side
Shape frame structure；Horizontal swing arm end described in the quadrangle support frame and the longitudinal movement arm and the longitudinally fixed arm
Using flexible material connection or articulated manner connection, so that the quadrangle support frame is variable to turn to rectangle or parallelogram；
Two pieces of light barriers are set to inside the quadrangle support frame, and the outside of two pieces of light barriers is fixedly installed in institute respectively
Longitudinal movement arm and the longitudinally fixed arm, and the inner side edge longitudinal direction parallel, horizontal face setting of two pieces of light barriers are stated, when
When the quadrangle support frame is in rectangle, it is not close on the inside of two pieces of light barriers, has the incidence passed through for characteristic spectrum narrow at this time
Seam；The longitudinal extension driving device is connect with the longitudinal movement arm, and provides zigzag tread patterns power for the moving arm.
Specifically, the longitudinal extension driving device includes: servo motor, drive lead screw and transmission nut；Drive lead screw
It is longitudinally disposed, the rotation output week transmission connection of one end and the servo motor；The transmission nut is embedding by helicitic texture
It is placed on the outside of the drive lead screw；Longitudinal movement arm or level in the transmission nut ontology and the quadrangle support frame
Swing arm connection.
More preferably, the transmission nut ontology and longitudinal movement arm or horizontal swing arm hinge in the quadrangle support frame
It connects.
Specifically, the longitudinal extension driving device is telescopic cylinder or telescopic hydraulic cylinder, the telescopic cylinder or flexible
The flexible driving end of hydraulic cylinder in the quadrangle support frame longitudinal movement arm or horizontal swing arm connect.
More preferably, the width range of the entrance slit is 0 μm -100 μm.
More preferably, when the quadrangle support frame is rectangular, it is installed on the baffle upper end meeting of the longitudinal movement arm
Baffle upper end than being installed on the longitudinally fixed installing arm is high.
Using a kind of Atomic Emission Spectrometer AES of entrance slit regulating mechanism as described above, it is applied to oil plant and detects,
Comprising: excite the excitation component of oil sample transmitting characteristic spectrum, and be successively arranged along spectral transmissions direction transfer element, institute
State entrance slit regulating mechanism, incident eyeglass, grating, photo-electric conversion element and computer；The transfer element is used for will be described
The spectrum that excitation component is launched is collected, and transmits the incidence surface projected to the incident eyeglass；The grating is set to
The light-emitting surface downstream of the incidence eyeglass, by the characteristic spectrum color at multiple monochromatic spectrums；The optical conversion component is
Multiple, the injection direction in the arc-shaped for being distributed in monochromatic spectrum receives each monochromatic spectrum and converts it into electric signal；The meter
Calculation machine is electrically connected in the photo-electric conversion element, records and analyze the electric signal；Two pieces in the entrance slit regulating mechanism
The longitudinal centre line for the entrance slit being equipped between the light barrier is aligned with the transmitting terminal of the transfer element.
The Atomic Emission Spectrometer AES is concave grating rowland circle spectrometer, the transmitting terminal of the transfer element, described
Entrance slit regulating mechanism, incident eyeglass, grating and photo-electric conversion element are all set in above Rowland circle；Above the Rowland circle
Equipped with lens mounting stand and L shape mounting rack；The transmitting terminal of the transfer element is installed in the launch hole that L shape mounting rack is equipped with；
The entrance slit regulating mechanism is installed on the L shape mounting rack close to the side of the incident eyeglass, and the entrance slit
The ontology of longitudinal extension driving device described in regulating mechanism is fixed with the L shape mounting rack, the longitudinally fixed installing arm
It is fixed with the L shape mounting rack；The incidence eyeglass setting is installed on the lens mounting stand.
The excitation component includes: high voltage power supply, metal bar positive electrode and rosette negative electrode；The high voltage power supply by
The computer control；The metal bar positive electrode is electrically connected by electric wire with the high voltage power supply, the rosette negative electricity
Pole is located at in the oil plant tested and analyzed.
The receiving area of the photo-electric conversion element is divided into zero level optical signal receiving area and non-zero order optical signal reception area
Domain；Zero level optical signal receiving area is equipped with diode pump integrator；The diode pump integrator include photoelectric diode and with
The integrating counting circuit that the photodiode electrically connects.
The present invention proposes a kind of simple entrance slit regulating mechanism of structure and atomic emission spectrum, can be applied to cremate and survey
In oil tech, the structure of the entrance slit regulating mechanism is simple, reliable and stable, to keep off by flexible structure or articulated structure
Width adjusting linearisation between mating plate, by the direct linear regulation slit width of linear motor, mechanism is amplified former by width
Reason can obtain small-scale slit width and adjust, to reduce to straight-line electric in large-scale linear motor adjustment process
The accuracy requirement of machine.Structural volume is small, is very suitable to install and use in spectrometer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of heretofore described entrance slit regulating mechanism；
Fig. 2 is the structural schematic diagram under another state of entrance slit regulating mechanism shown in Fig. 1；
Fig. 3 is the partial structure diagram of another embodiment of heretofore described entrance slit regulating mechanism；
Fig. 4 is the structural schematic diagram of another embodiment of heretofore described entrance slit regulating mechanism；
Fig. 5 is the operation principle schematic diagram of one embodiment of heretofore described Atomic Emission Spectrometer AES；
Structural schematic diagram when Fig. 6 is heretofore described photo-electric conversion element and grating cooperating；
Fig. 7 is the circuit connection diagram of one embodiment of heretofore described diode pump integrator.
Wherein: computer 1 excites component 2, high voltage power supply 21, metal bar positive electrode 22, rosette negative electrode 23, biography
Defeated element 3, incident eyeglass 4, grating 5, photo-electric conversion element 6, non-zero order optical signal receiving area 62, zero level optical signal reception area
Domain 63；Diode pump integrator 61, photodiode 611, integrating counting circuit 612；Entrance slit regulating mechanism 700, servo electricity
Machine 710, drive lead screw 720, transmission nut 730, horizontal swing arm 740 vertically move arm 750, longitudinally fixed installing arm 760, gear
Mating plate 770.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figs 1-4, a kind of entrance slit regulating mechanism 700 comprising: quadrangle support frame, two pieces of light barriers 770
With longitudinal extension driving device；The quadrangle support frame includes two horizontal swing arms, 740, longitudinal movement arms 750 and one
The longitudinally fixed installing arm 760 of root, two horizontal swing arms 740 and the longitudinal movement arm 750 and the longitudinally fixed installation
Arm 760 is sequentially connected, and forming a tool, there are four the annular frame structures on side；Horizontal swing arm described in the quadrangle support frame
740 ends are connect with the longitudinal movement arm 750 and the longitudinally fixed arm using flexible material or articulated manner connects, so that
The quadrangle support frame is variable to turn to rectangle or parallelogram；Two pieces of light barriers 770 are set to the quadrangle branch
Inside support frame, the outside of two pieces of light barriers 770 is fixedly installed in the longitudinal movement arm 750 and described longitudinally fixed respectively
Arm, and the inner side edge longitudinal direction parallel, horizontal face setting of two pieces of light barriers 770, when the quadrangle support frame is in rectangle
When, two pieces of 770 insides of light barrier are not close to, and have the entrance slit passed through for characteristic spectrum at this time；The longitudinal extension driving
Device is connect with the longitudinal movement arm 750, and provides zigzag tread patterns power for the moving arm.
The longitudinal extension driving device includes: servo motor 710, drive lead screw 720 and transmission nut 730；Driving wire
Bar 720 is longitudinally disposed, the rotation output week transmission connection of one end and the servo motor 710；The transmission nut 730 passes through
Helicitic texture is nested in the outside of the drive lead screw 720；In 730 ontology of transmission nut and the quadrangle support frame
It vertically moves arm 750 or horizontal swing arm 740 connects.The servo motor 710 drives the drive lead screw 720 to rotate, the biography
Dynamic screw rod 720 drives transmission nut 730 to vertically move along the drive lead screw 720 again, and the transmission nut 730 is in longitudinal tape
It is mobile to move the longitudinal movement arm 750, so that the quadrangle support frame shape changes；Shape constantly changes
Quadrangle support frame in the width of entrance slit between two pieces of light barriers 770 can also change, to realize incidence
The automatic adjustment of slit changes；In entire adjustment process, the rotation of servo motor 710 is become spiral and transported by drive lead screw 720
Dynamic, the transmission nut 730 converts longitudinal slowly movement for screw rod screw again, while driving the slow of quadrangle support frame
Slow deformation, the slow deformation of quadrangle are further converted to the slowly varying of two light barriers width in the horizontal direction, pass through
The variation of movement relation realizes the variation by the rotation of servo motor 710 with micron level between light barrier 770, to make
The degree of regulation for obtaining the entrance slit can meet actual needs.
Longitudinal movement arm 750 or horizontal swing arm 740 in 730 ontology of transmission nut and the quadrangle support frame are cut with scissors
It connects.When the quadrangle support frame deforms, when such as changing from rectangle to parallelogram, horizontal 740 meeting of swing arm
It is swung by center of circle sector of one end end, i.e., the described longitudinal movement arm 750 can have simultaneously under the constraint of the horizontal swing arm 740
Longitudinal and horizontal direction movement；When the 750 moving range very little of longitudinal movement arm, the transmission nut 730 will not be because
It is stuck by mobile constraint for the movement of horizontal direction；But it when 750 movings range of the longitudinal movement arm are excessive, will lead to
The transmission nut 730 occur on the drive lead screw 720 it is stuck, therefore in the transmission nut 730 and the quadrangle
The position of support frame connection uses the higher articulated structure of freedom degree, can be conducive to the generation for alleviating the stuck phenomenon, so that institute
Stating entrance slit adjustment structure more stable accurately can complete to adjust work.
The longitudinal extension driving device is telescopic cylinder or telescopic hydraulic cylinder, the telescopic cylinder or telescopic hydraulic cylinder
Flexible driving end in the quadrangle support frame longitudinal movement arm 750 or horizontal swing arm 740 connect.Telescopic cylinder and flexible
Hydraulic cylinder can cooperate other high-accuracy control elements to further increase the precision of itself flexible driving, and it is simpler that mounting structure is arranged
Single, driving adjusts precision can be higher.There are many specific embodiment of the longitudinal extension driving device, as long as can drive described
Longitudinal movement arm 750 moves downward and quadrangle is changed, it is not limited to the implementation mentioned in the present invention
Mode.
The width range of the entrance slit is 0 μm -100 μm.Entrance slit width in unnecessary situation crosses conference
Detection accuracy is influenced, i.e., in the present embodiment under the premise of rejecting interference light guarantee detection accuracy, the entrance slit is adjusted
The width maximum value of entrance slit in mechanism 700 between two pieces of light barriers can reach 100 μm, and can meet has more multielement,
The detection of the bigger spectrum of width, when minimum, that is, variation degree of quadrangle support frame is maximum, the parallelogram presented at this time
In two pieces of light barriers 770 be close to completely, the entrance slits are closed, and can play the role of cutting off spectrum at this time.
When the quadrangle support frame is rectangular, the baffle upper end for being installed on the longitudinal movement arm 750 can be than peace
Baffle upper end loaded on the longitudinally fixed installing arm 760 is high.Because the longitudinal movement arm 750 is in the quadrangle support frame
When longitudinal movement, one piece of mobile light barrier can be moved down relative to fixed light barrier, therefore be in quadrangle support frame
It is higher above mobile light barrier when rectangle, it is ensured that in the variation of quadrangle support frame, two pieces of more regions of baffle energy are just
It is right, so that light blocking effect is more preferable, it ensure that the width accuracy of entrance slit.
As shown in figure 5, a kind of Atomic Emission Spectrometer AES of application such as above-mentioned entrance slit regulating mechanism 700, application
It is detected in oil plant comprising: the excitation component 2 of excitation oil sample transmitting characteristic spectrum, and be successively arranged along spectral transmissions direction
Transfer element 3, the entrance slit regulating mechanism 700, incident eyeglass 4, grating 5, photo-electric conversion element 6 and computer 1；Institute
It states spectrum of the transfer element 3 for launching the excitation component 2 to be collected, and transmits injection to the incident eyeglass 4
Incidence surface；The grating 5 is set to the light-emitting surface downstream of the incident eyeglass 4, by the characteristic spectrum color at multiple lists
Color spectrum；The optical conversion component be it is multiple, the injection direction in the arc-shaped for being distributed in monochromatic spectrum receives each monochromatic spectrum
And convert it into electric signal；The computer 1 is electrically connected in the photo-electric conversion element 6, records and analyze the electric signal；
The longitudinal centre line for the entrance slit being equipped between two pieces of light barriers 770 in the entrance slit regulating mechanism 700 and institute
State the transmitting terminal alignment of transfer element 3.The Atomic Emission Spectrometer AES is between the transfer element 3 and the incident eyeglass 4
It, can be by the width of the entrance slit between two pieces of light barriers of adjusting, in turn after the entrance slit regulating mechanism 700
The case where control spectrum is incident to incident eyeglass 4, the scope of application is wider；Again due to the entrance slit regulating mechanism 700 be can
What realization was automatically precisely adjusted, so that the Atomic Emission Spectrometer AES can be automatic in real time according to the difference of oil plant sample
The width of entrance slit is adjusted, and then controls the detected range of incident light spectrum and can more reasonably reject interference optical signal, into
And improve the precision to oil plant detection.
The Atomic Emission Spectrometer AES is 5 rowland circle spectrometer of concave grating, the transmitting terminal of the transfer element 3, described
Entrance slit regulating mechanism 700, incident eyeglass 4, grating 5 and photo-electric conversion element 6 are all set in above Rowland circle；The rowland
Circle top is equipped with lens mounting stand and L shape mounting rack；The transmitting terminal of the transfer element 3 is installed on the hair that L shape mounting rack is equipped with
In perforation；The entrance slit regulating mechanism 700 is installed on the L shape mounting rack close to the side of the incident eyeglass 4, and institute
It states the ontology of longitudinal extension driving device described in entrance slit regulating mechanism 700 to fix with the L shape mounting rack, the longitudinal direction
Arm 760 is fixedly mounted also to fix with the L shape mounting rack；Incidence eyeglass 4 setting is installed on the lens mounting stand.So that
The position of the transmitting terminal and the entrance slit of the transfer element 3 is relatively fixed, ensure that spectrum can be precisely from entrance slit
In pass through and then reach on the incident eyeglass 4.
As shown in figure 5, the excitation component 2 includes: high voltage power supply 21, metal bar positive electrode 22 and rosette negative electrode
23；The high voltage power supply 21 is controlled by the computer 1；The metal bar positive electrode 22 passes through electric wire and the high voltage power supply 21
Electrical connection, the rosette negative electrode 23 are located at in the oil plant tested and analyzed.Utilize rosette negative electrode 23 and metal
High voltage power supply 21 between stick positive electrode 22 is by each element atom adding in oil sample to excite, and institute's radiation feature light is through the grating
5 light splitting are irradiated on photomultiplier tube corresponding with each element, and the content of element is directly displayed after processing.The excitation component
2 structures are simple, and high voltage power supply 21 is controlled by computer 1, so that the rotation of the excitation of excitation component 2 and incident eyeglass 4
Turn that there is synchronism, ensuring measurement structure control in this way, more accurately testing result precision is higher.
As shown in Figures 6 and 7, the receiving area of the photo-electric conversion element 6 is divided into zero level optical signal receiving area 63 and non-
Zero level optical signal receiving area 62；Zero level optical signal receiving area 63 is equipped with diode pump integrator 61；The diode product
Device 61 is divided to include photoelectric diode and the integrating counting circuit 612 electrically connected with the photodiode 611.Existing use is utilized
The zero level optical signal that usually not acts on is generated at grating 5 in the spectrometer of detection oil plant to improve detection accuracy, zero
Cooperate integrating counting circuit 612 using photodiode 611 at grade optical signal, so that the work of photodiode 611 is in integral mould
Under formula, excitation component 2 can be detected while detection elements emission spectrum signal rejects mushing error in spectral signal
The overall strength of the cremate light collection signal of excitation, is normalized, and then can correct using this overall strength and spectral signal
Excite the unstability of cremate light source at component 2.
Because the width of entrance slit is all fixed on a certain in 15 μm -30 microns in existing Atomic Emission Spectrometer AES
A width, but when petard atomic emissions survey oil, measurement element is more, and different sample size differences are big, measure spectrum signal energy
Measure mobility scale it is big, so in order to guarantee detection precision, need slit according to detect every time needs can fast accurate reality
Existing width adjusting；But by because the width adjusting of entrance slit is that entrance slit is arranged in tens micron levels
Regulating mechanism it is difficult, each driving device can only be converted to the change width of micron level when adjusting, this is to the machine of adjusting
The setting requirements of structure are very high.
The present invention proposes its Atomic Emission Spectrometer AES of a kind of entrance slit regulating mechanism 700 and application, and the incidence is narrow
Seam regulating mechanism 700 can be specifically applied to cremate and survey in oil tech, be connected by flexible material connection or articulated manner, so that
The support construction of light barrier 770 under outer power drive can pests occurrence rule deformation, by the direct Linear Driving of servo motor 710, four
Side shape support frame, by width amplification principle, can obtain in deformation process in large-scale 710 adjustment process of servo motor
It obtains the small-scale slit width of micron level to adjust, the incident seam regulating mechanism structure is simple, manufacturing cost is low, to servo electricity
The required precision of machine 710 is low, it is easy for installation occupy little space, be highly suitable to be applied for surveying using cremate atomic emissions oil tech into
The Atomic Emission Spectrometer AES of row oil plant detection.The Atomic Emission Spectrometer AES the transfer element 3 and the incident eyeglass 4 it
Between be provided with the entrance slit regulating mechanism 700 after, can by adjust two pieces of light barriers between entrance slit width, into
And the case where spectrum is incident to incident eyeglass 4 is controlled, the scope of application is wider；Again since the entrance slit regulating mechanism 700 is
Can be achieved automatically precisely to adjust so that the Atomic Emission Spectrometer AES can according to the difference of oil plant sample, in real time from
The dynamic width for adjusting entrance slit, and then control the detected range of incident light spectrum and can more reasonably reject interference optical signal,
And then improve the precision detected to oil plant.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of entrance slit regulating mechanism characterized by comprising quadrangle support frame, two pieces of light barriers and longitudinal extension
Driving device；
The quadrangle support frame include two horizontal swing arms, a longitudinal movement arm and a longitudinally fixed installing arm, two
The horizontal swing arm is sequentially connected with the longitudinal movement arm and the longitudinally fixed installing arm, and forming a tool, there are four sides
Annular frame structure；
Horizontal swing arm end described in the quadrangle support frame is with the longitudinal movement arm and the longitudinally fixed arm using soft
Property material connection or articulated manner connection so that the quadrangle support frame is variable to turn to rectangle or parallelogram；
Two pieces of light barriers are set to inside the quadrangle support frame, and the outside of two pieces of light barriers is fixedly mounted respectively
It is set in the inner side edge longitudinal direction parallel, horizontal face of the longitudinal movement arm and the longitudinally fixed arm, and two pieces of light barriers
It sets, when the quadrangle support frame is in rectangle, is not close on the inside of two pieces of light barriers, has to enter for what characteristic spectrum passed through at this time
Penetrate slit；
The longitudinal extension driving device is connect with the longitudinal movement arm, and provides zigzag tread patterns power for the moving arm.
2. a kind of entrance slit regulating mechanism according to claim 1, which is characterized in that the longitudinal extension driving device
It include: servo motor, drive lead screw and transmission nut；
Drive lead screw is longitudinally disposed, the rotation output week transmission connection of one end and the servo motor；
The transmission nut is nested in the outside of the drive lead screw by helicitic texture；
The transmission nut ontology in the quadrangle support frame longitudinal movement arm or horizontal swing arm connect.
3. a kind of entrance slit regulating mechanism according to claim 2, which is characterized in that the transmission nut ontology and institute
It states longitudinal movement arm in quadrangle support frame or horizontal swing arm is hinged.
4. a kind of entrance slit regulating mechanism according to claim 1, which is characterized in that the longitudinal extension driving device
For telescopic cylinder or telescopic hydraulic cylinder, the flexible driving end of the telescopic cylinder or telescopic hydraulic cylinder and the quadrangle support frame
In longitudinal movement arm or horizontal swing arm connection.
5. a kind of entrance slit regulating mechanism according to claim 1, which is characterized in that the width model of the entrance slit
Enclose is 0 μm -100 μm.
6. a kind of entrance slit regulating mechanism according to claim 1, which is characterized in that when the quadrangle support frame is in
When rectangular-shaped, the baffle upper end for being installed on the longitudinal movement arm can be than being installed on the baffle upper end of the longitudinally fixed installing arm
It is high.
7. a kind of Atomic Emission Spectrometer AES of entrance slit regulating mechanism of the application as described in any one of claim 1-6,
It is characterized in that, it is detected applied to oil plant comprising: the excitation component of excitation oil sample transmitting characteristic spectrum, and along spectrum
Transfer element that transmission direction is successively arranged, the entrance slit regulating mechanism, incident eyeglass, grating, photo-electric conversion element and
Computer；
The transfer element is used to for the spectrum that the excitation component is launched being collected, and transmits injection to the incident mirror
The incidence surface of piece；
The grating is set to the light-emitting surface downstream of the incident eyeglass, by the characteristic spectrum color at multiple monochromatic spectrums；
The optical conversion component be it is multiple, the injection direction in the arc-shaped for being distributed in monochromatic spectrum receives each monochromatic spectrum simultaneously
Convert it into electric signal；
The computer is electrically connected in the photo-electric conversion element, records and analyze the electric signal；
The longitudinal centre line for the entrance slit being equipped between two pieces of light barriers in the entrance slit regulating mechanism with it is described
The transmitting terminal of transfer element is aligned.
8. Atomic Emission Spectrometer AES according to claim 7, which is characterized in that the Atomic Emission Spectrometer AES is concave surface light
Grid rowland circle spectrometer, the transmitting terminal of the transfer element, the entrance slit regulating mechanism, incident eyeglass, grating and photoelectricity
Conversion element is all set in above Rowland circle；
Lens mounting stand and L shape mounting rack are equipped with above the Rowland circle；
The transmitting terminal of the transfer element is installed in the launch hole that L shape mounting rack is equipped with；
The entrance slit regulating mechanism is installed on the L shape mounting rack close to the side of the incident eyeglass, and the incidence
The ontology of longitudinal extension driving device described in slit regulating mechanism is fixed with the L shape mounting rack, the longitudinally fixed installation
Arm is also fixed with the L shape mounting rack；
The incidence eyeglass setting is installed on the lens mounting stand.
9. Atomic Emission Spectrometer AES according to claim 1, which is characterized in that the excitation component include: high voltage power supply,
Metal bar positive electrode and rosette negative electrode；The high voltage power supply is controlled by the computer；The metal bar positive electrode is logical
It crosses electric wire to be electrically connected with the high voltage power supply, the rosette negative electrode is located at in the oil plant tested and analyzed.
10. Atomic Emission Spectrometer AES according to claim 1, which is characterized in that the reception area of the photo-electric conversion element
Domain is divided into zero level optical signal receiving area and non-zero order optical signal receiving area；Zero level optical signal receiving area is equipped with two poles
Pipe integrator；The diode pump integrator includes photoelectric diode and the integral calculation electrically connected with the photodiode electricity
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873299.XA CN109001116B (en) | 2018-08-02 | 2018-08-02 | Incident slit adjusting mechanism and atomic emission spectrometer using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810873299.XA CN109001116B (en) | 2018-08-02 | 2018-08-02 | Incident slit adjusting mechanism and atomic emission spectrometer using same |
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| Publication Number | Publication Date |
|---|---|
| CN109001116A true CN109001116A (en) | 2018-12-14 |
| CN109001116B CN109001116B (en) | 2020-09-29 |
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| CN201810873299.XA Expired - Fee Related CN109001116B (en) | 2018-08-02 | 2018-08-02 | Incident slit adjusting mechanism and atomic emission spectrometer using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110057752A (en) * | 2019-05-10 | 2019-07-26 | 上海安杰环保科技股份有限公司 | A kind of slit plate for gas phase molecular absorption spectrometer |
| CN111142147A (en) * | 2019-12-26 | 2020-05-12 | 兰州空间技术物理研究所 | Nondestructive installation method of light blocking sheet in space charged particle detector |
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| CN110057752A (en) * | 2019-05-10 | 2019-07-26 | 上海安杰环保科技股份有限公司 | A kind of slit plate for gas phase molecular absorption spectrometer |
| CN111142147A (en) * | 2019-12-26 | 2020-05-12 | 兰州空间技术物理研究所 | Nondestructive installation method of light blocking sheet in space charged particle detector |
| CN111142147B (en) * | 2019-12-26 | 2023-04-07 | 兰州空间技术物理研究所 | Nondestructive installation method of light blocking sheet in space charged particle detector |
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