CN117949384A - A thin slice fixing device and short-term test raman spectrometer for short-term test - Google Patents
A thin slice fixing device and short-term test raman spectrometer for short-term test Download PDFInfo
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- CN117949384A CN117949384A CN202410086106.1A CN202410086106A CN117949384A CN 117949384 A CN117949384 A CN 117949384A CN 202410086106 A CN202410086106 A CN 202410086106A CN 117949384 A CN117949384 A CN 117949384A
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 30
- 238000012031 short term test Methods 0.000 title description 4
- 238000003825 pressing Methods 0.000 claims abstract description 64
- 238000001514 detection method Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 8
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000005201 scrubbing Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004416 surface enhanced Raman spectroscopy Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides a sheet fixing device for rapid detection and a rapid detection Raman spectrometer. The sheet fixing device includes a bracket and a holder. The bracket has a first end and a second end mounted to the housing. The holder includes a pressing portion formed at the second end portion and a carrying portion capable of being disposed on the horizontal top wall and surrounding the transparent window, the carrying portion being made of an opaque material. The lower peripheral side of the pressing part is provided with an annular retaining wall, the pressing part is provided with a first position and a second position in the vertical direction, the pressing part is opposite to the bearing part in the first position, an accommodating space for arranging a sheet is arranged between the pressing part and the bearing part, and the annular retaining wall surrounds the bearing part; the pressing part is far away from the bearing part when in the second position. The distance between the thin sheet and the transparent window is 0.2-3.0 mm. The invention can improve the environmental stability and the detection distance stability of Raman detection, save the consumption of detection samples and simplify the detection operation.
Description
Technical Field
The invention relates to the field of detection instruments, in particular to a sheet fixing device for frequently replacing sheets in detection and a rapid detection Raman spectrometer provided with the sheet fixing device.
Background
The Raman spectrometer is widely applied to petrochemical industry, pharmaceutical production quality control, biotechnology, scientific research, archaeology and other aspects. Raman spectroscopy is mainly used for substance identification and component analysis of samples. When the existing raman spectrometer detects low-concentration substances, the signal is weak, so that the signal intensity of raman is often required to be improved or external interference is reduced in various modes. The method for improving the Raman signal intensity comprises the following steps: the method comprises the steps of finding an optimal detection point, adopting SERS Raman enhancement technology, increasing laser power or refracting incident light to a sample for multiple times, and the like, wherein the scheme of reducing external interference is to adopt a light-proof sample cabin or enable a test to be in a darkroom, and the like.
In the existing detection technology using a raman spectrometer, a container for placing a detection sample is a cuvette, and the cuvette is placed in a light-shielding cabin for detection. However, the cuvette has a large content, and a large amount of samples to be detected are consumed, so that the waste of precious samples is caused. In addition, in the detection process using the raman spectrometer, when different samples to be detected are detected, the cuvette is required to be repeatedly cleaned, which brings a lot of extra workload to detection or experimental work. The cuvette needs to be positioned to an optimal detection position in the cabin before detection, but the positioning operation of the cuvette is very difficult by moving, and the position deviation of the cuvette is large in general, so that the detection accuracy is seriously influenced; meanwhile, it is difficult to ensure that multiple detections can be accurately positioned at the same position, so that the repeatability of the detection is poor. U.S. patent No. 2002154299 discloses a method for sampling using liquid surface tension, which can reduce the sample dosage. However, the sampling method is often used for detection instruments such as spectrophotometers, and is rarely applied to raman spectrometers.
The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
An object of the present invention is to overcome the above-mentioned drawbacks of the prior art, and to provide a sheet fixing device capable of improving the environmental stability and the detection distance stability of raman detection, saving the amount of detection sample, and simplifying the detection operation.
Another aspect of the invention is to provide a rapid detection raman spectrometer comprising the sheet holding device of the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
According to one aspect of the invention, a sheet fastening device is provided for mounting on a housing having a horizontal top wall provided with a transparent window. The sheet fixing device includes a bracket and a holder. The bracket has a first end and a second end, wherein the first end is mounted to the housing. The holder includes a pressing portion and a bearing portion. The pressing part is formed at the second end part of the bracket. The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window. The pressing part is provided with a first position and a second position in the vertical direction, when in the first position, the pressing part can be opposite to the bearing part, and a containing space for arranging a sheet is arranged between the pressing part and the bearing part; the pressing part is far away from the bearing part when in the second position. The distance between the sheet and the transparent window is 0.2-3.0 mm.
According to an embodiment of the invention, the carrier part is made of a light-impermeable material.
According to one embodiment of the invention, an annular retaining wall is arranged on the lower peripheral side of the pressing part, and when the pressing part is located at the first position, the annular retaining wall surrounds the bearing part and is arranged on the horizontal top wall of the shell.
According to an embodiment of the present invention, the pressing portion and the bracket are integrally formed or are independent from each other and are fixedly or detachably connected together.
According to another aspect of the invention, a sheet fastening device is mounted on a housing having a horizontal top wall provided with a transparent window. The sheet fixing device includes a bracket and a holder. The bracket has a first end and a second end, wherein the first end is mounted to the housing. The fixer is formed at the second end of the bracket, the fixer comprises a body, a containing space for containing a sheet is formed in the body, a light hole communicated with the containing space is formed in the bottom of the body, and a taking and placing opening communicated with the containing space and used for taking and placing the sheet is formed in the side face of the body. The fixer is provided with a first position and a second position, when the fixer is in the first position, the fixer can be placed on the horizontal top wall of the shell, and the light transmission hole of the fixer is opposite to the transparent window; the retainer is in a second position away from the horizontal top wall of the housing. The distance between the sheet and the transparent window is 0.2-3.0 mm.
According to an embodiment of the present invention, the holder and the bracket are integrally formed or are independent of each other and are fixedly connected or detachably mounted together.
According to an embodiment of the invention, the lamellae are arranged parallel to the transparent window.
According to one embodiment of the present invention, the upper surface of the transparent window is a plane; or a pit is arranged in the center of the upper surface of the transparent window, and the maximum depth of the pit is less than 2 mm.
According to an embodiment of the invention, the first end of the bracket is rotatably mounted to the housing.
According to an embodiment of the invention, the bracket comprises a first vertical portion, a second vertical portion and a connecting portion. The lower end part of the first vertical part is a first end part of the bracket; the lower end part of the second vertical part is a second end part of the bracket; the both ends of connecting portion are connected respectively in the upper end of first vertical portion and second vertical portion. The connecting part and the first vertical part are of an integral structure or of mutually independent structures and are connected together.
According to an embodiment of the invention, the upper end of the second vertical portion is connected to the connecting portion with respect to the connecting portion in a height adjustable manner.
According to one embodiment of the invention, the end part of the connecting part, which is used for connecting the second vertical part, is provided with a vertical through hole with a shape which is matched with the cross section shape of the second vertical part, and the upper end part of the second vertical part is arranged in the vertical through hole and is locked and fixed by a jacking bolt.
According to an embodiment of the invention, the cross section of the second vertical portion is circular, elliptical or polygonal.
According to one embodiment of the invention, the end portion of the connecting portion, which is used for connecting the second vertical portion, is provided with a vertical through hole with a shape identical to the cross-sectional shape of the second vertical portion, and the upper end portion of the second vertical portion penetrates out of the vertical through hole and is provided with a stop structure capable of preventing the second vertical portion from falling out of the vertical through hole of the connecting portion.
According to one embodiment of the invention, the lower end of the first vertical portion extends into the housing through the horizontal top wall of the housing, and the bottom end of the first vertical portion is provided with a mounting portion. The sheet fixing device further comprises a first magnet and a second magnet. The first magnet is arranged on the mounting part; the second magnet is mounted on the horizontal top wall of the shell and corresponds to the first magnet. The first magnet and the second magnet can be separated by a distance, so that the retainer or a pressing part in the retainer is positioned at the first position; the first magnet and the second magnet can be attracted together, so that the retainer or a pressing part in the retainer is located at the second position.
According to an embodiment of the present invention, the sheet fixing device further includes a supporting portion disposed on the housing and supporting the first end portion of the bracket when the holder or the pressing portion of the holder is located at the first position.
According to one embodiment of the invention, a guide part for ensuring the movement of the first vertical part in the vertical direction is arranged on the horizontal top wall of the shell.
According to one embodiment of the invention, a vertical sleeve is fixed on the horizontal top wall of the shell, and the bracket comprises a first vertical part, a second vertical part and a connecting part. The lower end part of the first vertical part is the first end part of the bracket, and the first vertical part is sleeved in the vertical sleeve relative to the horizontal top wall of the shell in a height-adjustable manner and is locked by a positioning structure. The lower end of the second vertical part is the second end of the bracket. The both ends of connecting portion are connected in respectively first vertical portion and second vertical portion upper end, connecting portion with first vertical portion and/or the vertical portion of second is the integral structure or be mutually independent structure and link together.
According to one embodiment of the invention, the first vertical part is provided with a transversely penetrating mounting hole, a pre-tightening spring is arranged in the mounting hole, and two ends of the spring are respectively and fixedly connected with a positioning ball; the lower position and the higher position on the vertical sleeve are respectively provided with a pair of positioning holes, a pair of positioning balls can be matched with the pair of positioning holes, and the diameter of the positioning holes is smaller than that of the positioning balls.
According to one embodiment of the present invention, the sheet is a reflective sheet.
According to one embodiment of the invention, the sheet is a reflective lens or a raman enhancing chip.
According to yet another aspect of the present invention, a rapid detection raman spectrometer includes a housing, a wafer holder mounted to the housing, and a laser and optical assembly mounted within the housing. The shell is provided with a horizontal top wall, and a transparent window is arranged on the horizontal top wall. The sheet fixing device is a sheet fixing device according to the present invention.
According to an embodiment of the invention, the transparent window is detachably mounted to the horizontal top wall of the housing.
According to the technical scheme, the invention has at least the following advantages and positive effects:
In the thin sheet fixing device, the distance between the thin sheet and the transparent window is 0.2-3.0 mm, and the thin sheet fixing device can be used for forming a sample column by applying the principle of liquid surface tension to detect, wherein the used sample amount is less than 10% of that of a common cuvette. Therefore, the detection instrument using the sheet fixing device of the present invention can save a large amount of samples.
In the sheet fixing device, the detection sheet is arranged on the fixer and can be conveniently taken out and put into the fixer; meanwhile, the fixer or the compactor thereof is provided with a first position for detecting and a second position for scrubbing the transparent window in the vertical direction, and the first position and the second position are easy to switch. Therefore, in the invention, the detection step and the cleaning step are respectively positioned at different positions, so that the scrubbing operation of the transparent window is convenient, a great amount of time is saved, and the working efficiency is obviously improved.
In the thin sheet fixing device, the sample for detection is dripped on the transparent window, on one hand, the transparent window is fixed relative to the position of the shell, and on the other hand, the total surface area of the transparent window is smaller, so that the position of the sample is easy to find and control, and the position of the sample is more accurate. Therefore, the detection instrument using the sheet fixing device has high detection accuracy and good repeatability.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 shows a cross-sectional view of a first embodiment of the sheet fastening device of the present invention, with the fastener in a first position;
FIG. 2 shows a top view of FIG. 1;
FIG. 3 shows a cross-sectional view of a first embodiment of the sheet fastening device of the present invention with the fastener in a second position;
FIG. 4 shows an enlarged view of portion A of FIG. 1;
Fig. 5 shows a left side view of fig. 4;
FIG. 6 shows a top view of FIG. 4;
FIG. 7 shows a top view of FIG. 4 with a slot provided in the holder body;
FIG. 8 shows a cross-sectional view of a second embodiment of the sheet fastening device of the present invention with the fastener in a first position;
FIG. 9 shows an enlarged view of portion B of FIG. 8;
FIG. 10 shows an enlarged view of portion C of FIG. 8;
FIG. 11 shows a cross-sectional view of a second embodiment of the sheet fastening device of the present invention with the fastener in a second position and rotated 90 degrees rearward;
fig. 12 shows a schematic structural diagram of an embodiment of the rapid detection raman spectrometer of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
In order to facilitate an understanding of the detailed structure of the sheet holding device of the present invention, the sheet, the sample column, the housing having a horizontal top wall, and the transparent window are shown in the drawings.
Sheet fixing device embodiment 1
See fig. 1-6. The sheet fixing device of the present invention can be mounted on a housing 1. The housing 1 may be box-shaped with a horizontal top wall 11. The horizontal top wall 11 is provided with a transparent window 12.
The first embodiment of the sheet fixing device of the present invention includes a bracket 2 and a holder 3.
The bracket 2 may be, for example, arched or "gate" -shaped, having a first end and a second end. The first end of the bracket 2 is mounted to the housing 1.
In this first embodiment, the bracket 2 includes a first upright portion 21, a connecting portion 23, and a second upright portion 22.
The first vertical portion 21 is, for example, a vertical rod or a vertical tube, and its lower end is a first end of the bracket 2, and is liftably mounted on the horizontal top wall 11 of the housing 1.
The second vertical portion 22 is, for example, a vertical rod or tube, and the lower end portion thereof is the second end portion of the bracket 2, for connecting to the holder 3.
The connection portion 23 is, for example, a horizontal rod, a horizontal pipe, an arc-shaped rod, an arc-shaped pipe, or the like. Both ends of the connection portion 23 are connected to upper ends of the first and second vertical portions 21 and 22, respectively.
As shown in fig. 1 and 3, in this first embodiment, the connecting portion 23 is of unitary construction with the first upright portion 21. In other embodiments, the two may be independent structures and connected together by a fixed connection or a detachable connection.
As shown in fig. 1 and 3, in the first embodiment, the connecting portion 23 and the second vertical portion 22 are independent from each other, and an upper end portion of the second vertical portion 22 is connected to the connecting portion 23 so as to be height-adjustable with respect to the connecting portion 23. There are various ways of adjusting the height, and the following will exemplify in detail.
For example, the end of the connecting portion 23 for connecting the second vertical portion 22 is provided with a vertical through hole having a shape matching the cross-sectional shape of the second vertical portion 22, for example, both being circular or both being rectangular. The upper end of the second vertical portion 22 is disposed in the vertical through hole, and the two may form a clearance fit. The outside of the vertical through hole on the connecting part 23 is connected with a tightening bolt through threads. When the bracket 2 is positioned at the first position, the positions of the second vertical part 22 and the connecting part 23 are adjusted properly, that is, when no interaction force exists between the two parts, the second vertical part 22 and the connecting part 23 can be fixed together by screwing the tightening bolt. The cross-section of the second upright 22 may be circular or non-circular, such as elliptical or polygonal. When the cross section of the second upright portion 22 is non-circular, it is more convenient to fix by the jack bolt.
In other embodiments, the connecting portion 23 and the second vertical portion 22 may be integrally formed. In this case, it is necessary to precisely calculate the lengths of the first and second vertical portions 21 and 22 so that the holder 3 is placed on the housing 1 just by gravity of itself and the second vertical portion 22 when the stand 2 is in the first position.
The manner of mounting the first end of the bracket 2 on the housing 1 will be described below, and in this embodiment 1, it is intended to achieve switching of the fixing portion 3 between the first position and the second position by the manner of mounting the first end of the bracket 2, i.e., the end of the first upright portion 21.
See fig. 1 and 3. The lower end of the first vertical portion 21 of the bracket 1 protrudes into the housing 1 through the horizontal top wall 11 of the housing 1. The bottom end of the first vertical portion 21 is provided with a mounting portion, such as a supporting plate 210, and a groove is provided on the supporting plate 210, and the first magnet 51 is embedded in the groove. The first magnet 51 may be a ring magnet or may be composed of a plurality of magnet blocks. The second magnet 52 is mounted on the horizontal top wall 11 of the housing 1at a position corresponding to the first magnet, and the second magnet 52 may be a ring magnet or may be composed of a plurality of magnetic blocks. The second magnet 52 has a magnetism opposite to that of the first magnet 51 so as to be attracted to each other when approaching.
As shown in fig. 1, the first magnet 51 is spaced apart from the second magnet 52 in the vertical direction, and the holder 3 at the lower end of the second vertical portion 22 of the bracket 1 is supported on the horizontal top wall 11 of the housing 1, that is, the holder 3 is located at the first position. At this time, a supporting portion 13 such as a supporting plate for supporting the first vertical portion 21, the supporting plate 210 and the first magnet 51 may be fixed in the housing 1 such as a housing sidewall. The structure of the support portion 13 is not limited to the support plate, and may be other structures such as a string, or may be omitted when the entire weight of the bracket is relatively light. Further, a guide portion 6, such as a guide block, is provided on the horizontal top wall 11 of the housing 1, and the second magnet 52 may be provided in the guide block. The guide 6 serves to ensure that the first vertical portion 21 moves in the vertical direction without being skewed.
As shown in fig. 3, the first magnet 51 and the second magnet 52 are attracted to each other, and at this time, the holder 3 at the lower end of the second vertical portion 22 of the bracket 1 is lifted away from the horizontal top wall 11 of the housing 1, i.e., the holder 3 is located at the second position.
Further, a first end portion, i.e., a first vertical portion 21, of the bracket 2 is rotatably mounted to the housing 1. For example, in the case where the first upright portion 21 is a circular tube or rod, it may be rotatable relative to the horizontal top wall 11 of the housing 1. When the holder 3 is lifted to the second position by the bracket 2, then the first vertical portion 21 is rotated again to rotate the holder 3 aside, so that the space above the transparent window 12 of the housing 1 can be avoided, thereby facilitating the cleaning of the transparent window 12 by the inspector.
See fig. 1, fig. 4-6. In this embodiment 1, the holder 3 is formed at the second end portion of the bracket 2, that is, the holder 3 is formed at the bottom end portion of the second upright portion 22. The holder 3 is of integral construction with the bracket 2. In other embodiments, the holder 3 and the bracket 2 may be independent structures, and then fixedly connected or detachably mounted together.
The holder 3 comprises a body 31 having a receiving space for receiving a sheet 100 such as a reflection lens or a raman reinforcing chip therein, and the shape of the receiving space may be in conformity with the shape of the sheet, for example, a rectangular parallelepiped shape having a thickness of 0.2-4mm, and the thickness of the rectangular parallelepiped receiving space is preferably 0.5-2mm. The bottom of the body 31 is provided with a light hole communicated with the accommodating space, and the side surface of the fixer 3 is provided with a picking and placing opening communicated with the accommodating space for picking and placing the thin sheet. Through the taking-out and placing opening, a sheet 100 can be placed in the accommodating space or a sheet 100 can be taken out from the accommodating space, and the sheet 100 placed in the accommodating space is exposed at a position corresponding to the light transmitting hole. As shown in fig. 7, a notch 33 may be provided at the upper side of the body 31, and the notch 33 communicates with both the receiving space and the pick-and-place port. The tab 100 can be conveniently ejected by a finger through the slot 33. Of course, when the sheet 100 is extended from the access opening to the accommodating space, the sheet 100 may be put into or taken out of the accommodating space with a finger or with forceps, and the notch 33 may not be provided. In addition, the sheet 100 may be conveniently ejected by a finger through the light-transmitting hole, and the notch 33 may not be provided.
Referring to fig. 1 and 4, the holder 3 is shown in a first position. At this time, the pallet 210 of the bottom end portion of the first vertical portion 21 is placed on the supporting portion 13, the holder 3 is placed on the horizontal top wall 11 of the housing 1, and the light transmitting hole of the holder 3 is opposed to the transparent window 12. When the sheet 100 of the holder 3 is placed in the accommodating space, the portion of the sheet 100 exposed to the light-transmitting hole is opposed to the transparent window 12. If a drop of the solution to be sampled is dropped on the transparent window 12, a column of liquid 200 can be formed between the sheet 100 and the transparent window 12 due to the surface tension of the liquid. The sheet 100 may be disposed parallel to the transparent window 12, and the distance between the sheet 100 and the transparent window 12 may be 0.2 to 3.0 millimeters. The distance between the sheet 100 and the transparent window 12 corresponds to the thickness of the portion of the body 31 of the holder 3 between the accommodating space thereof and the transparent window 12 or the horizontal top wall 11, and the distance between the sheet 100 and the transparent window 12 can be adjusted to a proper range by designing the thickness of the portion, so that the distance between the sheet 100 and the transparent window 12 can be maintained unchanged for each detection, thereby improving the detection accuracy and repeatability.
Referring to fig. 4, a well may be provided centrally on the transparent window 12 to facilitate the formation of a liquid column of a relatively dilute concentration sample. The bottom surface of the recess may be planar and the side surfaces may be arcuate and smoothly transition with the upper surface of the transparent window 12. The maximum depth of the pit is less than 2 mm.
Referring to fig. 3, the holder 3 is shown in a second position. At this time, the first magnet 51 and the second magnet 52 are attracted to each other, and the height of the bracket 1 is raised as a whole, so that the holder 3 at the lower end portion of the second vertical portion 22 of the bracket 1 is lifted away from the horizontal top wall 11 of the housing 1. At this point, the liquid sample on the transparent window 12 can be directly scrubbed without removing the transparent window 12. Further, the first vertical portion 21 of the bracket 1 is rotated to drive the second vertical portion 22 and the fixer 3 to rotate by an angle away from the space right above the transparent window 12, so that the space for scrubbing the transparent window 12 is increased, and the scrubbing operation is more convenient.
The sheet 100 in the holder 3 can be taken out from the taking-out and putting-in opening, and a new sheet 100 is put in; dropping the next liquid sample on the transparent window 12; turning back to the first vertical portion 21 to position the holder 3 directly above the transparent window 12, and further to drop the holder 3 back to the first position, the next detection can be performed.
By using the sheet fixing device of the first embodiment of the invention, on one hand, the liquid sample is only 10% less than the traditional cuvette for sampling, so that the precious sample can be saved greatly. On the other hand, the detection time is greatly shortened and is only less than 30% of the traditional detection time, and the detection device is convenient to operate and saves manpower. Thus, the invention is particularly suitable for instruments requiring rapid detection, such as rapid detection of raman.
Sheet fixing device embodiment 2
Referring to fig. 8 to 11, the second embodiment of the sheet fixing apparatus of the present invention is different from the first embodiment in that: the manner in which the first vertical portion 21 of the bracket 2 is mounted on the horizontal top wall 11 of the housing 1, the manner in which the second vertical portion 22 is connected to the connecting portion 23, and the structure of the holder 7.
Referring to fig. 8 and 10, a detailed example of the mounting of the first vertical portion 21 of the bracket 2 on the horizontal top wall 11 of the housing 1 is as follows:
A vertical sleeve 9 is fixed to the horizontal top wall 11 of the housing 1. The first vertical part 21 of the bracket 2 is sleeved in the vertical sleeve 9. Further, the vertical sleeve 9 is sleeved with the horizontal top wall 11 of the shell 1 in a height adjustable mode and is locked by a positioning structure. The first vertical portion 21 is height-adjustable and locked in position with respect to the vertical sleeve 9 in a wide variety of ways, for example:
The first vertical portion 21 is provided with a transversely penetrating mounting hole, a pre-tightening spring 90 is mounted in the mounting hole, and two ends of the spring 90 are respectively and fixedly connected with a positioning ball 92 such as a steel ball. A pair of positioning holes 91 are formed in the lower position of the vertical sleeve 9, and the diameter of the positioning holes 91 is smaller than that of the positioning balls 92. Moving the first vertical portion 21, when the pair of positioning balls 92 are respectively fitted into the pair of positioning holes 91, the relative positions of the first vertical portion 21 and the vertical sleeve 9 are fixed. The lower position on the vertical sleeve 9 may correspond to the first position of the holder 3. Further, in the first position of the holder 3, the bottom end portion of the first vertical portion 21 may abut against the horizontal top wall 11 of the housing 1.
The upper position of the vertical sleeve 9 is provided with a pair of positioning holes 91, and the pair of positioning holes 91 can be on the same vertical plane with the pair of positioning holes 91 at the lower position. At this time, when the first vertical portion 21 is pulled up to the upper position of the vertical sleeve 9, the corresponding positioning balls 92 and the positioning holes 91 can be engaged with each other to lock the first vertical portion 21 and the vertical sleeve 9. The locating hole 91 in the upper position and the pair of locating holes 91 in the lower position on the vertical sleeve 9 may also be in two vertical planes at an angle. At this time, when the first vertical portion 21 is pulled up to a higher position of the vertical sleeve 9 and rotated by a corresponding angle, the corresponding positioning ball 92 and the positioning hole 91 can cooperate with each other to lock the first vertical portion 21 and the vertical sleeve 9. As shown in fig. 10, a pair of positioning holes 91 at a higher position and a pair of positioning holes 91 at a lower position on the vertical sleeve 9 are respectively in two vertical planes at right angles.
In the present embodiment, the number of the positioning holes 91 of the vertical sleeve 9 is not limited to two pairs, and may include more pairs disposed at different heights to achieve more adjustment of the relative positions, so that the holder 7 is adjustable to a plurality of different height positions.
Referring to fig. 8 and 11, a detailed example of the connection manner between the second upright portion 22 and the connection portion 23 is as follows:
The end of the connecting portion 23 for connecting the second vertical portion 22 is provided with a vertical through hole having a shape matching the cross-sectional shape of the second vertical portion 22, for example, both being circular or both being rectangular. The upper end of the second vertical portion 22 passes through the vertical through hole, and the two can form clearance fit or loose fit. The tip end portion of the second vertical portion 22 is provided with a stopper structure capable of preventing the second vertical portion 22 from coming out of the vertical through hole of the connecting portion 23. The stop structure is, for example, a bolt 4, and the screw cap of the bolt 4 is larger than the vertical through hole, and is connected to the top end of the second vertical portion 22 through threads. The stop structure may also be, for example, a stop pin extending transversely through the second upright portion 22, or the like.
When the holder 7 is in the first position, there is a gap between the second upright portion 22 and the connecting portion 23, with no force acting between them. When the holder 7 is in the second position, the second upright portion 22 is hung on the connecting portion 23 by means of the bolt 4 at the tip end portion thereof.
Referring to fig. 9, a detailed example of the structure of the holder 7 is as follows:
the holder 7 includes a pressing portion 71 and a bearing portion 70.
The pressing portion 71 may have a horizontal plate shape formed at the second end portion of the bracket 2, that is, at the bottom end portion of the second vertical portion 22. The pressing portion 71 is integrally formed with the second vertical portion 22. In other embodiments, the pressing portion 71 and the second vertical portion 22 may be configured independently, and then fixedly connected or detachably connected together.
The carrier 70 may be annular, for example circular, and may be placed on or secured to or removably mounted to the horizontal top wall 11 of the housing 1. The carrier 70 surrounds the transparent window 12 at its center. In other embodiments, the bearing portion 70 may be composed of a plurality of fixed blocks arranged in a ring shape. In one embodiment, the carrier 70 is made of an opaque material. At this time, the carrying portion 70 can block light in addition to carrying the sheet 100.
See fig. 8, 9 and 11. The pressing part 71 has a first position and a second position in the vertical direction, and when the pressing part 71 is located at the first position, the pressing part is opposite to the carrying part 70, and a containing space for setting a sheet 100 is provided therebetween; when the pressing portion 71 is located at the second position, the pressing portion 71 is away from the bearing portion 70. By designing and adjusting the thickness of the carrier 70, the distance between the foil 100 and the transparent window 12 can be adjusted to accommodate samples of different concentrations or types.
In other embodiments, the lower peripheral side of the pressing portion 71 is provided with an annular retaining wall 72, and the annular retaining wall 72 may be integrally formed with the pressing portion 71, and formed by bending and extending the periphery of the pressing portion 71. The annular retaining wall 72 may form a clearance fit with the outside of the carrier 70. The height of the annular retaining wall 72 is equal to the sum of the thicknesses of the sheet 100 and the bearing portion 70 or greater than the sum of the thicknesses of the sheet 100 and the bearing portion 70 by 0.5 to 2mm. When the pressing portion 71 is in the first position, the annular retaining wall 72 surrounds the bearing portion 70 and is placed on the horizontal top wall 11 of the housing 1.
See fig. 8. The lower part of the first vertical part 21 of the bracket 2 is sleeved in the vertical sleeve 9, and is positioned at the lower position of the vertical sleeve 9 by the positioning ball 92, and at this time, the bottom end surface of the first vertical part 21 can be abutted on the horizontal top wall 11 of the shell 1, which is not limited in any way. The hold-down portion 71 is in the first position and the annular retaining wall 72 is disposed in the horizontal top wall 11 of the housing 1 and encloses the carrier portion 70 therein.
See fig. 11. First, the first vertical portion 21 is pulled up to be moved to a higher position of the vertical sleeve 9, and at this time, the second vertical portion 22 is hung on the connecting portion 23 by means of the bolt 4 at the tip end portion thereof; then, after turning the second vertical portion 22 by 90 ° in this position, the second vertical portion 22 is locked to the vertical sleeve 9 by the positioning ball 92. Then, a large enough space can be provided for scrubbing the transparent window, which is very convenient and quick.
The other structures of the second embodiment of the sheet fixing device are the same as those of the first embodiment, and will not be described again.
The above three aspects of the second embodiment, which are different from those of the first embodiment, may be combined into a plurality of different embodiments, respectively, instead of the corresponding aspects of the first embodiment.
Quick detection Raman spectrometer
See fig. 12. The invention relates to a rapid detection Raman spectrometer, which comprises a shell 1, a sheet fixing device, a laser 10, an optical assembly, a spectrometer 20 and the like, wherein the sheet fixing device is arranged on the shell 1, and the laser 10, the optical assembly and the spectrometer are arranged in the shell 1.
The housing 1 may be box-shaped with a horizontal top wall 11, the horizontal top wall 11 being provided with a transparent window 12. The sheet fixing means of the present invention is mounted on the horizontal top wall 11. The sheet in the sheet fixing device may be a reflecting sheet 100, for example, a reflecting sheet, which may also be a raman enhancement chip, etc.
The laser 10 is used to emit laser light. After passing through the optical components, for example, the first lens 30, the binary mirror 40 and the second lens 50, the incident light passes through the transparent window 12 and is focused on the sample 200to be measured; the raman light scattered from the sample 200 is collected by the second lens 50 through the transparent window 12, reflected as parallel light to the filter and the lens group through the binary mirror 40, then incident into the spectrometer for light splitting and signal acquisition, and finally subjected to subsequent data analysis processing.
The quick detection Raman spectrometer of the invention, which uses the thin sheet fixing device of the invention, can ensure that the detection is in a stable environment, and particularly the position of a sample to be detected is easy to control and very accurate, thereby obviously improving the accuracy and good repeatability of the detection. At the same time, a large amount of liquid sample can be saved. In addition, the sheet fixing device disclosed by the invention is very convenient in lofting and sampling operation, and the transparent window is very convenient and quick in cleaning operation, so that the rapid detection Raman spectrometer disclosed by the invention is convenient for detecting low-concentration trace samples, and the rapid detection of Raman is truly realized.
The exemplary embodiments of the present invention have been particularly shown and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the bearing part is made of light-proof material,
The annular retaining wall is arranged on the periphery of the lower face of the pressing part, and surrounds the bearing part when the pressing part is located at the first position.
2. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the bearing part is made of light-proof material,
The pressing part and the bracket are of an integral structure or mutually independent structures and are fixedly connected or detachably connected together.
3. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the bearing part is made of light-proof material,
Wherein, the support includes:
a first vertical part, the lower end part of which is a first end part of the bracket;
A second vertical part, the lower end part of which is a second end part of the bracket; and
And the two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part are of an integral structure or of mutually independent structures and are connected together.
4. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the bearing part is made of light-proof material,
Wherein, be fixed with vertical sleeve on the horizontal roof of casing, the support includes:
The lower end part of the first vertical part is a first end part of the bracket, and the first vertical part is sleeved in the vertical sleeve in a height-adjustable manner relative to the horizontal top wall of the shell and is locked by a positioning structure;
A second vertical part, the lower end part of which is a second end part of the bracket; and
The two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part and/or the second vertical part are of an integral structure or of mutually independent structures and are connected together.
5. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein, the circumference of the lower surface of the pressing part is provided with an annular retaining wall, when the pressing part is positioned at the first position, the annular retaining wall surrounds the bearing part,
The bracket comprises:
a first vertical part, the lower end part of which is a first end part of the bracket;
a second vertical part, the lower end part of which is a second end part of the bracket;
and the two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part are of an integral structure or of mutually independent structures and are connected together.
6. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the pressing part and the bracket are of an integral structure or mutually independent structures and are fixedly connected or detachably connected together,
Wherein, the support includes:
a first vertical part, the lower end part of which is a first end part of the bracket;
a second vertical part, the lower end part of which is a second end part of the bracket;
and the two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part are of an integral structure or of mutually independent structures and are connected together.
7. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein, the circumference of the lower surface of the pressing part is provided with an annular retaining wall, when the pressing part is positioned at the first position, the annular retaining wall surrounds the bearing part,
Wherein, be fixed with vertical sleeve on the horizontal roof of casing, the support includes:
The lower end part of the first vertical part is a first end part of the bracket, and the first vertical part is sleeved in the vertical sleeve in a height-adjustable manner relative to the horizontal top wall of the shell and is locked by a positioning structure;
A second vertical part, the lower end part of which is a second end part of the bracket; and
The two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part and/or the second vertical part are of an integral structure or of mutually independent structures and are connected together.
8. A sheet fastening device for rapid inspection for mounting on a housing having a horizontal top wall provided with a transparent window, the sheet fastening device comprising:
a bracket having a first end and a second end, the first end mounted to the housing; and
A holder, comprising:
a pressing part formed at the second end of the bracket; and
The bearing part can be arranged on the horizontal top wall of the shell and surrounds the transparent window;
The pressing part is provided with a first position and a second position in the vertical direction, can be opposite to the bearing part when in the first position, and is provided with a containing space for arranging a sheet; the pressing part is far away from the bearing part when in the second position; the distance between the sheet and the transparent window is 0.2-3.0 mm,
Wherein the pressing part and the bracket are of an integral structure or mutually independent structures and are fixedly connected or detachably connected together,
Wherein, be fixed with vertical sleeve on the horizontal roof of casing, the support includes:
The lower end part of the first vertical part is a first end part of the bracket, and the first vertical part is sleeved in the vertical sleeve in a height-adjustable manner relative to the horizontal top wall of the shell and is locked by a positioning structure;
a second vertical part, the lower end part of which is a second end part of the bracket;
The two ends of the connecting part are respectively connected with the upper ends of the first vertical part and the second vertical part, and the connecting part and the first vertical part and/or the second vertical part are of an integral structure or of mutually independent structures and are connected together.
9. A rapid detection raman spectrometer comprising a housing, a sheet fixing device mounted on the housing, and a laser and an optical assembly mounted in the housing, wherein the housing has a horizontal top wall with a transparent window thereon; the sheet fixing device for rapid detection according to any one of claims 1 to 8.
10. A rapid detection raman spectrometer according to claim 9 wherein said transparent window is removably mounted to a horizontal top wall of said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410086106.1A CN117949384A (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410086106.1A CN117949384A (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
| CN201510195463.2A CN106153598B (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
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| CN201510195463.2A Division CN106153598B (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
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| CN117949384A true CN117949384A (en) | 2024-04-30 |
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| CN201510195463.2A Active CN106153598B (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
| CN202410168138.6A Pending CN118050320A (en) | 2015-04-23 | 2015-04-23 | Quick detection Raman spectrometer and thin sheet fixing device |
| CN202410086106.1A Pending CN117949384A (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
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| CN201510195463.2A Active CN106153598B (en) | 2015-04-23 | 2015-04-23 | A thin slice fixing device and short-term test raman spectrometer for short-term test |
| CN202410168138.6A Pending CN118050320A (en) | 2015-04-23 | 2015-04-23 | Quick detection Raman spectrometer and thin sheet fixing device |
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| CN100373151C (en) * | 2005-01-13 | 2008-03-05 | 上海众毅工业控制技术有限公司 | Laser Raman sample pool for gas analysis |
| CN101936906B (en) * | 2009-06-30 | 2012-08-08 | 北京盈沣财智投资咨询有限公司 | Carrier, kit and surface enhanced Raman spectroscopy analysis method |
| CN102069705B (en) * | 2010-12-21 | 2013-03-06 | 孙宏水 | Device for metering oil consumption of engine for car (ship) |
| JP6230250B2 (en) * | 2013-03-29 | 2017-11-15 | 浜松ホトニクス株式会社 | Surface enhanced Raman scattering unit and Raman spectroscopic analysis method |
| JP2015026022A (en) * | 2013-07-29 | 2015-02-05 | オリンパス株式会社 | Substrate for observing raman scattering light |
| CN204807459U (en) * | 2015-04-23 | 2015-11-25 | 北京信智天成科技有限公司 | Thin slice fixing device and short -term test raman spectrometer |
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| CN106153598A (en) | 2016-11-23 |
| CN118050320A (en) | 2024-05-17 |
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