CN110596036A - Scanning type infrared spectrometer easy to adjust and used for food detection - Google Patents
Scanning type infrared spectrometer easy to adjust and used for food detection Download PDFInfo
- Publication number
- CN110596036A CN110596036A CN201910910824.5A CN201910910824A CN110596036A CN 110596036 A CN110596036 A CN 110596036A CN 201910910824 A CN201910910824 A CN 201910910824A CN 110596036 A CN110596036 A CN 110596036A
- Authority
- CN
- China
- Prior art keywords
- sample box
- fixed
- motor
- sealing cover
- infrared spectrometer
- 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.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 238000003780 insertion Methods 0.000 abstract description 21
- 230000037431 insertion Effects 0.000 abstract description 21
- 239000012085 test solution Substances 0.000 abstract description 19
- 238000005259 measurement Methods 0.000 abstract description 10
- 239000000243 solution Substances 0.000 abstract description 9
- 239000000523 sample Substances 0.000 description 68
- 239000000126 substance Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004566 IR spectroscopy Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 231100000987 absorbed dose Toxicity 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to an easily-adjusted scanning infrared spectrometer for food detection, which comprises a shell, an operation panel, a handle, a sealing mechanism, a sample box and a detection mechanism, wherein the sealing mechanism comprises a sealing cover, a fixing ring, an outer ring and a plurality of fastening components, each fastening component comprises a fastening unit, a first jack, a second jack and an insertion rod, the detection mechanism comprises a lifting plate, a first motor, a turntable, a central rod, two lifting components and two detection components, each detection component comprises a light source, a vertical rod, a monochromator and a detector, the easily-adjusted scanning infrared spectrometer for food detection can fix and seal the sample box through the sealing mechanism, prevent and shield a test solution from splashing out, avoid the influence of the external environment during detection, and can scan and measure the test solution in the sample box through the detection mechanism at different height positions, by changing the amount of the solution, the absorbed infrared light amount is adjusted, accurate measurement is carried out, and the practicability of the device is improved.
Description
Technical Field
The invention relates to the field of food detection equipment, in particular to an easily-adjusted scanning type infrared spectrometer for food detection.
Background
An infrared spectrometer is an instrument for analyzing molecular structures and chemical compositions by using the absorption characteristics of substances to infrared radiation with different wavelengths. An infrared spectrometer typically consists of a light source, monochromator, detector and computer processing information system. The infrared spectrometer can not only identify the compound, but also accurately determine the content of the compound, and is relatively convenient to operate, so that the infrared spectrometer is commonly used for detecting certain specific compound substances in food.
However, in the existing infrared spectrometer, the positions of the light source, the monochromator, the detector and the sample chamber are relatively fixed and single, the transmission path of the infrared ray is fixed singly, the device can only detect the sample solution at the fixed position, the error is larger when the device detects, and because the device utilizes the absorption characteristics of the substances to infrared radiation with different wavelengths to detect, when the content of the substances to be detected is too high, the infrared absorption is easy to be too much, which is not beneficial to the light signal received by the detector, and when the material content that awaits measuring is less, infrared absorption is too little, and the light signal change difference that the detector received is little, is unfavorable for the accurate measurement to food solution, moreover, current infrared spectroscopy is detecting time measuring, receives external environment's light interference easily, further leads to measuring error to increase, has reduced current infrared spectroscopy's practicality.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, an easily-adjusted scanning infrared spectrometer for food detection is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: an easily-adjusted scanning type infrared spectrometer for food detection comprises a shell, an operation panel, a handle, a sealing mechanism, a sample box and a detection mechanism, wherein the operation panel is fixed on the shell, a display screen and a plurality of keys are arranged on the operation panel, a PLC is arranged in the shell, the handle is positioned above the shell, the detection mechanism is positioned at the bottom in the shell, the sample box is arranged at the bottom in the shell through the sealing mechanism, the sample box is cylindrical, and a conical cylindrical notch is arranged below the center of the sample box;
the sealing mechanism comprises an opening, a sealing cover, a fixing ring, an outer ring and a plurality of fastening components, the opening is arranged above the shell, the periphery of the top of the sealing cover is hermetically connected with the inner wall of the opening, the handle is fixed above the sealing cover, the sealing cover is covered above the sample box, the periphery of the top end of the sample box is fixed on the inner wall of the outer ring, the outer ring is abutted against the upper part of the fixing ring, the periphery of the fixing ring is fixed on the inner wall of the shell, the fastening components are uniformly distributed on the periphery of the sealing cover in the circumferential direction and comprise fastening units, first jacks, second jacks and insertion rods, the fastening unit is positioned above the shell, the first jack is arranged on the outer ring, the second jack is arranged on the fixing ring, the top end of the inserted rod is fixed below the sealing cover, and the bottom end of the inserted rod sequentially penetrates through the first jack and the second jack;
detection mechanism includes lifter plate, first motor, carousel, well core rod, two lifting unit and two determine module, the lifter plate passes through lifting unit and is connected with the bottom in the shell, the top at the lifter plate is fixed to first motor, first motor is connected with the carousel transmission, well core rod fixes the top at the carousel, well core rod's top is located the notch, and two determine module are located well core rod's both sides respectively, determine module includes light source, montant, monochromator and detector, the top at well core rod is fixed to the detector, the monochromator passes through the light source and fixes the one side that is close to the sample box on the top of montant, first motor, light source and detector all are connected with the PLC electricity, light source, monochromator and detector are located same height.
Preferably, in order to fix the position of the sealing cover, the fastening unit comprises an air cylinder and a roller, wherein the cylinder body of the air cylinder is horizontally fixed above the shell, the air rod of the air cylinder is connected with the roller, the roller abuts against the upper part of the sealing cover, and the air cylinder is electrically connected with the PLC.
Preferably, in order to ensure that the outer periphery of the bottom of the sealing cover is in sealing connection with the inner wall of the sample box, the bottom of the sealing cover is in a conical cylinder shape, the outer diameter of the bottom of the sealing cover is smaller than the inner diameter of the sample box, and the outer diameter of the top of the sealing cover is larger than the outer diameter of the outer ring.
Preferably, in order to facilitate the insertion rod to pass through the first insertion hole and the second insertion hole, the bottom end of the insertion rod is shaped like a hemisphere.
Preferably, in order to drive the lifting plate to move up and down, the lifting assembly comprises a second motor, a screw rod and a sleeve, the second motor is fixed at the bottom inside the shell and is electrically connected with the PLC, the second motor is in transmission connection with the bottom end of the screw rod, the top end of the screw rod is arranged inside the sleeve, a screw thread matched with the screw rod is arranged at the connection part of the sleeve and the screw rod, and the sleeve is fixed below the lifting plate.
Preferably, in order to avoid corrosion of the screw rod, the screw rod is coated with an anti-corrosion zinc coating.
Preferably, in order to ensure the stable rotation of the rotary table, an annular groove is formed above the lifting plate, a plurality of sliding blocks are arranged on the periphery of the first motor and matched with the annular groove, and the sliding blocks are in sliding connection with the annular groove.
Preferably, in order to further ensure the stable rotation of the rotating disk, the annular groove is a dovetail groove.
Preferably, in order to secure the driving force of the first motor, the first motor is a dc servo motor.
Preferably, in order to avoid the handle from sliding, the handle is provided with anti-slip lines.
The scanning infrared spectrometer for food detection, which is easy to adjust, has the advantages that the sample box can be fixed and sealed through the sealing mechanism, the sample box is prevented from splashing and being shielded, the influence of the external environment during detection is avoided, in addition, the sample box can be scanned and measured through the detection mechanism, the absorbed infrared light quantity is adjusted through changing the solution quantity at different height positions, the accurate measurement is further carried out, and the practicability of the device is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the scanning infrared spectrometer of the present invention for food inspection that is easy to adjust;
FIG. 2 is a cross-sectional view of an easily adjustable scanning infrared spectrometer for food inspection of the present invention;
FIG. 3 is a schematic structural diagram of the detection mechanism of the scanning infrared spectrometer for food detection with easy adjustment of the invention;
FIG. 4 is an enlarged view of portion A of FIG. 2;
in the figure: 1. the device comprises a shell, 2, an operation panel, 3, a handle, 4, a sample box, 5, a sealing cover, 6, a fixing ring, 7, an outer ring, 8, an inserting rod, 9, a lifting plate, 10, a first motor, 11, a rotating disc, 12, a center rod, 13, a light source, 14, a vertical rod, 15, a monochromator, 16, a detector, 17, an air cylinder, 18, a roller, 19, a second motor, 20, a screw rod, 21, a sleeve, 22, an annular groove and 23 a sliding block.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, an easily adjustable scanning infrared spectrometer for food detection includes a housing 1, an operation panel 2, a handle 3, a sealing mechanism, a sample box 4 and a detection mechanism, wherein the operation panel 2 is fixed on the housing 1, the operation panel 2 is provided with a display screen and a plurality of keys, the housing 1 is internally provided with a PLC, the handle 3 is positioned above the housing 1, the detection mechanism is positioned at the bottom inside the housing 1, the sample box 4 is arranged at the bottom inside the housing 1 through the sealing mechanism, the sample box 4 is cylindrical, and a conical recess is arranged below the center of the sample box 4;
a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.
The user is when using this infrared spectrometer, the button on the operating panel 2 operates on the accessible shell 1, controlgear starts, control sealing mechanism starts, make sample box 4 in the shell 1 open the back, to pouring into in the sample box 4 and wait to test the liquid, then sealing mechanism carries out sealing process to sample box 4, prevent to examine time measuring and receive outside light's interference, and fix the back to sample box 4, be responsible for detecting the solution in the sample box 4 by the detection mechanism in the shell 1, sealing mechanism seals fixed back to sample box 4, user's accessible handle 3 has carried equipment, drive equipment and remove, make things convenient for equipment transport.
As shown in fig. 2 and 4, the sealing mechanism includes an opening, a sealing cover 5, a fixing ring 6, an outer ring 7 and a plurality of fastening components, the opening is disposed above the housing 1, the periphery of the top of the sealing cover 5 is connected with the inner wall of the opening in a sealing manner, the handle 3 is fixed above the sealing cover 5, the sealing cover 5 is covered above the sample box 4, the periphery of the top end of the sample box 4 is fixed on the inner wall of the outer ring 7, the outer ring 7 abuts against the fixing ring 6, the periphery of the fixing ring 6 is fixed on the inner wall of the housing 1, the fastening components are uniformly distributed on the periphery of the sealing cover 5 in the circumferential direction, the fastening components include fastening units, first insertion holes, second insertion holes and insertion rods 8, the fastening units are disposed above the housing 1, the first insertion holes are disposed on the outer ring 7, the second insertion holes are disposed on the fixing ring 6, the top end of the inserted rod 8 is fixed below the sealing cover 5, and the bottom end of the inserted rod 8 sequentially penetrates through the first jack and the second jack;
in the sealing mechanism, the position of the fixing ring 6 is fixed on the inner wall of the shell 1, the outer ring 7 is placed above the fixing ring 6, the sample box 4 fixedly connected with the outer ring 7 can be supported, the sample box 4 is positioned at the inner side of the fixing ring 6, the outer ring 7 is rotated, after a first jack on the outer ring 7 is aligned with a second jack on the fixing ring 6, an insertion rod 8 on the sealing cover 5 is aligned with the first jack on the insertion ring and the second jack on the fixing ring 6, then the sealing cover 5 moves downwards, the insertion rod 8 passes through the first jack and the second jack, the periphery of the sealing cover 5 is hermetically connected with the inner wall of the opening, the sealing treatment on the inside of the sample box 4 is ensured, the sealing cover 5 is covered on the sample box 4, the test solution in the sample box 4 can be prevented from splashing to the outside, the position of the sample box 4 is fixed, and the sample box 4 is prevented from sliding left and right, simultaneously, shelter from sample box 4 of below through sealed lid 5, prevent to examine time measuring and receive the interference of external environment light, be favorable to the determine module to carry out accurate test to the practicality of equipment has been improved.
As shown in fig. 3, the detection mechanism includes a lifting plate 9, a first motor 10, a rotary table 11, a central rod 12, two lifting assemblies and two detection assemblies, the lifting plate 9 is connected with the bottom inside the housing 1 through the lifting assemblies, the first motor 10 is fixed above the lifting plate 9, the first motor 10 is in transmission connection with the rotary table 11, the central rod 12 is fixed above the rotary table 11, the top end of the central rod 12 is located in the recess, the two detection assemblies are respectively located on two sides of the central rod 12, the detection assemblies include a light source 13, a vertical rod 14, a monochromator 15 and a detector 16, the detector 16 is fixed on the top end of the central rod 12, the monochromator 15 is fixed on one side of the top end of the vertical rod 14 close to the sample box 4 through the light source 13, and the first motor 10, the light source 13 and the detector 16 are all electrically connected with the, the light source 13, monochromator 15 and detector 16 are located at the same height.
When the detection mechanism is used for detecting the test solution in the sample box 4, the PLC controls the first motor 10 to be started to drive the rotary disc 11 to rotate, so that the central rod 12 and the vertical rod 14 on the rotary disc 11 respectively drive the detector 16, the monochromator 15 and the light source 13 to rotate, the detector 16 is positioned in the conical cylindrical recess below the sample box 4, the PLC controls the light source 13 to be started while the light source 13 and the monochromator 15 rotate around the periphery of the sample box 4, continuous infrared light is radiated to the sample box 4, after the infrared light is decomposed into monochromatic light by the monochromator 15, the light passes through the sample box 4 and passes through the internal test solution and is radiated on the detector 16, the detector 16 receives the light signal, the light signal is converted into an electric signal and then is transmitted to the PLC, the PLC determines the content of the substance to be detected in the solution according to the electric signal and displays the substance through the display screen, and as the rotary disc 11 can respectively drive the monochromator 15 through, The light source 13 rotates to make the infrared light rotate around the axis of the sample box 4, which is convenient for radiating the infrared light to the solution at the same height position and different directions, changing the position of the solution through which the infrared light passes, and simultaneously driving the lifting plate 9 to move up and down through the lifting component, and further, the height positions of the monochromator 15, the light source 13 and the detector 16 are changed, so that the light beam passes through the test solution in the sample box 4 at different height positions, because the conical cylindrical notch is arranged below the sample box 4, the test solution amount at each height position in the sample box 4 is different, and thus the absorption amount of infrared light is made different, by adjusting the height positions of the monochromator 15, the light source 13 and the detector 16, the absorption capacity of infrared light can be changed, the detection of equipment is prevented from being influenced when the concentration of substances to be detected in the test solution is too high or too low, the detection precision of the equipment is further ensured, and the practicability of the equipment is improved.
As shown in fig. 4, the fastening unit includes a cylinder 17 and a roller 18, the cylinder body of the cylinder 17 is horizontally fixed above the housing 1, the air rod of the cylinder 17 is connected with the roller 18, the roller 18 abuts against the upper side of the sealing cover 5, and the cylinder 17 is electrically connected with the PLC.
After the sealing cover 5 covers the sample box 4, a user presses a key, the PLC controls the air cylinder 17 to be started, the air amount in the cylinder body of the air cylinder 17 is adjusted, the roller 18 moves to the position above the sealing cover 5, the sealing cover 5 can be prevented from being separated from an opening, the sealing cover 5 can be driven to move upwards through the handle 3, and the sealing cover 5 cannot be separated from the opening, so that equipment can be conveniently lifted, and the equipment is driven to move. The air rod of air cylinder 17 drives roller 18 to move close to the cylinder body of air cylinder 17, so that after roller 18 is separated from the upper part of the sealing tube, sealing cover 5 can be taken out from the opening, the sample box 4 inside can be taken out conveniently, and test solution is added into sample box 4 or sample box 4 is cleaned.
Preferably, in order to ensure that the outer periphery of the bottom of the sealing cover 5 is in sealing connection with the inner wall of the sample box 4, the bottom of the sealing cover 5 is in the shape of a conical cylinder, the outer diameter of the bottom of the sealing cover 5 is smaller than the inner diameter of the sample box 4, and the outer diameter of the top of the sealing cover 5 is larger than the outer diameter of the outer ring 7. Utilize the external diameter of the bottom of sealed lid 5 to be less than the internal diameter of sample box 4, make things convenient for the bottom of sealed lid 5 to fill in inside sample box 4, sealed lid 5 moves down the back, and its periphery keeps sealing connection with the inner wall of sample box 4, and the external diameter at the top of sealed lid 5 is greater than the external diameter of outer loop 7 for the external diameter of outer loop 7 is less than the open-ended internal diameter, makes things convenient for outer loop 7 and sample box 4 to pass through from the opening.
Preferably, in order to facilitate the insertion rod 8 to pass through the first insertion hole and the second insertion hole, the bottom end of the insertion rod 8 is shaped like a hemisphere. The hemispherical design reduces the size of the bottom end of the inserted rod 8, thereby facilitating the inserted rod 8 to pass through the first jack on the outer ring 7 and the second jack on the fixing ring 6.
As shown in fig. 3, the lifting assembly includes a second motor 19, a screw rod 20 and a sleeve 21, the second motor 19 is fixed at the bottom inside the housing 1, the second motor 19 is electrically connected with the PLC, the second motor 19 is in transmission connection with the bottom end of the screw rod 20, the top end of the screw rod 20 is arranged inside the sleeve 21, a connection part of the sleeve 21 and the screw rod 20 is provided with a thread matched with the screw rod 20, and the sleeve 21 is fixed below the lifting plate 9.
The PLC controls the second motor 19 to start, so that the screw rod 20 can be driven to rotate, the screw rod 20 acts on the sleeve 21 through threads, the sleeve 21 can move up and down along the axis of the screw rod 20, and the lifting plate 9 can be driven to move up and down.
Preferably, in order to prevent the lead screw 20 from being rusted, the lead screw 20 is coated with an anti-corrosion zinc coating. The lead screw 20 is prevented from being corroded by the contact with external oxygen through the anti-corrosion zinc coating, and the transmission connection between the lead screw and the sleeve 21 is influenced.
Preferably, in order to ensure the stable rotation of the rotating disc 11, an annular groove 22 is provided above the lifting plate 9, a plurality of sliding blocks 23 are provided on the periphery of the first motor 10, the sliding blocks 23 are matched with the annular groove 22, and the sliding blocks 23 are slidably connected with the annular groove 22. The circular groove 22 fixed on the lifting plate 9 fixes the rotating track of the sliding block 23, and the sliding block 23 is fixed below the rotating disc 11, so that the rotating disc 11 keeps rotating stably.
Preferably, in order to further ensure the stable rotation of the rotary disk 11, the annular groove 22 is a dovetail groove. After the annular groove 22 is a dovetail groove, the sliding block 23 can be prevented from being separated from the annular groove 22, and the stable rotation of the rotary table 11 is further ensured.
Preferably, the first motor 10 is a dc servo motor in order to ensure the driving force of the first motor 10 by utilizing the characteristic that the driving force of the dc servo motor is strong.
Preferably, in order to avoid the handle 3 from sliding, the handle 3 is provided with anti-skid lines. The roughness of the surface of the handle 3 is increased by the anti-slip pattern, thereby preventing the handle 3 from slipping when a user grips the handle 3.
When the infrared spectrometer detects food solution, after the sample box 4 is filled with test solution, the sealing cover 5 is covered on the sample box 4, the insertion rod 8 below the sealing cover 5 sequentially penetrates through the first insertion hole of the outer ring 7 and the second insertion hole on the fixing ring 6, the sample box 4 is fixed, the sample box 4 is prevented from shaking, measurement deviation is prevented, the sample box 4 is blocked by the sealing cover 5, the detection of the test solution in the sample box 4 is prevented, meanwhile, the test solution in the sample box 4 is blocked, the influence of external environment during measurement is prevented, in addition, the first motor 10 drives the rotary disc 11 to rotate, the detector 16 rotates in a conical-column-shaped notch below the sample box 4, the light source 13 and the monochromator 15 rotate around the periphery of the sample box 4, the scanning measurement of the test solution in the sample box 4 is facilitated, and the measurement is performed on the sample solution at multiple positions, improve and detect the precision, and drive lifter plate 9 lift removal through lifting unit, make light source 13, monochromator 15 and 16 synchronous lift removal of detector, be convenient for measure the test solution of different height position, because there is the notch of circular cone cylindricality sample box 4 center department below, make the material content to be measured that contains in the test solution in each height in the sample box 4 different, through the absorbed amount of lift removal adjustable infrared light, avoid measuring the fixed single infrared light absorbed amount that leads to of position too much or too little and arouse to measure the deviation, so, through changing the test solution volume, adjust the infrared light absorbed amount, the content of the material to be measured in the test solution of can the accurate measurement, and then the practicality of equipment has been improved.
Compared with the prior art, this a scanning formula infrared spectrometer for food detects easily adjusts can fix and seal sample box 4 through sealing mechanism, prevents the test solution spill, and shelter from it, receives the external environment influence when avoiding detecting, moreover, can scan the measurement to the test solution in the sample box 4 through detection mechanism, and in the high position of difference, through changing solution volume, adjust the infrared light by the absorbed dose, and then carry out the precision measurement, improved the practicality of equipment.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The scanning type infrared spectrometer easy to adjust and used for food detection is characterized by comprising a shell (1), an operation panel (2), a handle (3), a sealing mechanism, a sample box (4) and a detection mechanism, wherein the operation panel (2) is fixed on the shell (1), the operation panel (2) is provided with a display screen and a plurality of keys, the shell (1) is internally provided with a PLC (programmable logic controller), the handle (3) is positioned above the shell (1), the detection mechanism is positioned at the bottom inside the shell (1), the sample box (4) is arranged at the bottom inside the shell (1) through the sealing mechanism, the sample box (4) is cylindrical, and a conical cylindrical notch is arranged below the center of the sample box (4);
the sealing mechanism comprises an opening, a sealing cover (5), a fixing ring (6), an outer ring (7) and a plurality of fastening components, the opening is arranged above the shell (1), the periphery of the top of the sealing cover (5) is in sealing connection with the inner wall of the opening, the handle (3) is fixed above the sealing cover (5), the sealing cover (5) is covered above the sample box (4), the periphery of the top end of the sample box (4) is fixed on the inner wall of the outer ring (7), the outer ring (7) is abutted against the upper side of the fixing ring (6), the periphery of the fixing ring (6) is fixed on the inner wall of the shell (1), the fastening components are uniformly distributed on the periphery of the sealing cover (5) in the circumferential direction and comprise fastening units, first jacks, second jacks and inserting rods (8), and the fastening units are positioned above the shell (1), the first jack is arranged on the outer ring (7), the second jack is arranged on the fixing ring (6), the top end of the inserted rod (8) is fixed below the sealing cover (5), and the bottom end of the inserted rod (8) sequentially penetrates through the first jack and the second jack;
detection mechanism includes lifter plate (9), first motor (10), carousel (11), well core rod (12), two lifting unit and two determine module, lifter plate (9) is connected through the bottom in lifting unit and shell (1), the top at lifter plate (9) is fixed in first motor (10), first motor (10) is connected with carousel (11) transmission, well core rod (12) are fixed in the top of carousel (11), the top of well core rod (12) is located the notch, and two determine module are located the both sides of well core rod (12) respectively, determine module includes light source (13), montant (14), monochromator (15) and detector (16), the top at well core rod (12) is fixed in detector (16), monochromator (15) are fixed through light source (13) and are close to the montant of sample box (4) on the top of well core rod (14), monochromator (15) are fixed through light source (13) and are close to the montant of sample box (4) On one side, the first motor (10), the light source (13) and the detector (16) are all electrically connected with the PLC, and the light source (13), the monochromator (15) and the detector (16) are located at the same height.
2. The scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1, wherein the fastening unit comprises a cylinder (17) and a roller (18), the cylinder body of the cylinder (17) is horizontally fixed above the housing (1), the gas rod of the cylinder (17) is connected with the roller (18), the roller (18) abuts against above the sealing cover (5), and the cylinder (17) is electrically connected with the PLC.
3. The scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1, characterized in that the bottom of the sealing cover (5) is shaped as a conical cylinder, the outer diameter of the bottom of the sealing cover (5) is smaller than the inner diameter of the sample box (4), and the outer diameter of the top of the sealing cover (5) is larger than the outer diameter of the outer ring (7).
4. Scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1 characterized in that the bottom end of the plunger (8) is shaped as a hemisphere.
5. The scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1, wherein the lifting assembly comprises a second motor (19), a screw rod (20) and a sleeve (21), the second motor (19) is fixed at the bottom inside the housing (1), the second motor (19) is electrically connected with the PLC, the second motor (19) is in transmission connection with the bottom end of the screw rod (20), the top end of the screw rod (20) is arranged inside the sleeve (21), the joint of the sleeve (21) and the screw rod (20) is provided with a thread matching with the screw rod (20), and the sleeve (21) is fixed below the lifting plate (9).
6. The scanning infrared spectrometer easy to adjust for food detection as claimed in claim 5, characterized in that the lead screw (20) is coated with an anti-corrosion zinc coating.
7. The scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1, wherein an annular groove (22) is provided above the lifting plate (9), a plurality of sliding blocks (23) are provided on the periphery of the first motor (10), the sliding blocks (23) are matched with the annular groove (22), and the sliding blocks (23) are slidably connected with the annular groove (22).
8. The adjustable scanning infrared spectrometer for food inspection according to claim 7, characterized in that the annular groove (22) is a dovetail groove.
9. The adjustable scanning infrared spectrometer for food inspection as set forth in claim 1, wherein the first motor (10) is a dc servo motor.
10. Scanning infrared spectrometer easy to adjust for food detection as claimed in claim 1 characterized in that the handle (3) is provided with anti-slip lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910824.5A CN110596036A (en) | 2019-09-25 | 2019-09-25 | Scanning type infrared spectrometer easy to adjust and used for food detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910824.5A CN110596036A (en) | 2019-09-25 | 2019-09-25 | Scanning type infrared spectrometer easy to adjust and used for food detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110596036A true CN110596036A (en) | 2019-12-20 |
Family
ID=68863228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910910824.5A Withdrawn CN110596036A (en) | 2019-09-25 | 2019-09-25 | Scanning type infrared spectrometer easy to adjust and used for food detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110596036A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551518A (en) * | 2020-04-21 | 2020-08-18 | 浙江省农业科学院 | Vegetable pesticide residue detection method |
| CN111551517A (en) * | 2020-04-21 | 2020-08-18 | 浙江省农业科学院 | Vegetable pesticide residue detection device and method |
-
2019
- 2019-09-25 CN CN201910910824.5A patent/CN110596036A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551518A (en) * | 2020-04-21 | 2020-08-18 | 浙江省农业科学院 | Vegetable pesticide residue detection method |
| CN111551517A (en) * | 2020-04-21 | 2020-08-18 | 浙江省农业科学院 | Vegetable pesticide residue detection device and method |
| CN111551517B (en) * | 2020-04-21 | 2022-11-29 | 浙江省农业科学院 | Vegetable pesticide residue detection device and method |
| CN111551518B (en) * | 2020-04-21 | 2022-11-29 | 浙江省农业科学院 | Vegetable pesticide residue detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11572625B2 (en) | Rotation detection jig, substrate processing apparatus and method of operating the substrate processing apparatus | |
| CN110596036A (en) | Scanning type infrared spectrometer easy to adjust and used for food detection | |
| CA1292627C (en) | Luminometer construction | |
| CN107377563B (en) | Magnetic separation cleaning device and working method thereof and liquid injection needle tube | |
| US20080286158A1 (en) | Liquid dispensing apparatus | |
| CN109342408B (en) | Industrial chemistry intelligent titration method and system based on image color information extraction | |
| US20060129084A1 (en) | Method of detecting disorder of syringe pump, liquid sucking discharging device, and biochemical analyzer | |
| CN117405707A (en) | Nuclear waste packaging body dual-mode synchronous scanning detection device | |
| JPS5845888B2 (en) | Chemical reaction monitoring method and apparatus | |
| CN111239330A (en) | COD analytical equipment | |
| JP2019070553A (en) | Autoanalyzer and operation amount correction method | |
| US3301065A (en) | Liquid sample supply apparatus | |
| US20120282137A1 (en) | Automatic analyzer | |
| JP2003161709A (en) | Sample rotating mechanism for fluorescent x-ray analyzing instrument | |
| CN110632012A (en) | Ultraviolet spectrophotometer convenient to disassemble and assemble and used for food detection | |
| CN206876584U (en) | Lucifuge detection device and detecting system | |
| JP2006214009A (en) | Plating device | |
| JP2977692B2 (en) | Rotary reactor measurement method | |
| JP2002098659A (en) | Analysis device | |
| CN208796953U (en) | A kind of silicon wafer placement driving device of ion implantation apparatus | |
| JPS6057547B2 (en) | automatic chemical analysis method | |
| CN110632011A (en) | Multifunctional ultraviolet-visible spectrophotometer for food detection | |
| JPH074621Y2 (en) | 2π Directional radiation detector | |
| CN108613932B (en) | Novel side-illuminated sample mixing device | |
| JP2004157080A (en) | Fluorescent x-ray analysis apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191220 |