CN115753274B - Rapid sample dividing platform and method for columnar sediment samples - Google Patents
Rapid sample dividing platform and method for columnar sediment samples Download PDFInfo
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- CN115753274B CN115753274B CN202211341657.5A CN202211341657A CN115753274B CN 115753274 B CN115753274 B CN 115753274B CN 202211341657 A CN202211341657 A CN 202211341657A CN 115753274 B CN115753274 B CN 115753274B
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Abstract
The invention belongs to the technical field of marine geological exploration, and particularly relates to a rapid sample dividing platform and method for columnar sediment samples. A rapid sample dividing platform for columnar sediment samples comprises an operation table top, a fixed clamping device, a sectioning device and a stepping sample dividing device; a plurality of clamping and fixing devices are arranged on the operation table top at intervals along the length direction; two sides of the fixed clamping device are respectively provided with a sliding rail and a rack guide rail which are parallel to each other; the sectioning device is connected to the sliding rail in a sliding way; one side of the stepping sample separating device is connected to the sliding rail in a sliding way, and the other side of the stepping sample separating device is meshed to the rack guide rail through a gear. The invention can solve the problems of cutting error, aggravated disturbance, exogenous pollution, low efficiency and the like when the columnar sample of the sediment is continuously cut manually, can rapidly and accurately continuously divide the columnar sediment, can adjust and correct the cutting angle according to the actual sampling condition, and improves the rationality and the accuracy of the sample cutting.
Description
Technical Field
The invention belongs to the technical field of marine geological exploration, and particularly relates to an accurate subdivision and rapid sample separation platform and sample separation method for columnar sediment samples in the field of marine geology.
Background
Sampling test and in-situ test are two common means for researching marine deposition environment, and the content of the test mainly comprises year measurement, sediment granularity, minerals, trace elements, organic carbon nitrogen and the like.
The sampling test needs to firstly obtain a sediment columnar sample from the site, then carry out the segmentation test on the sample according to a certain interval in a laboratory, and the problems of disturbance aggravation, exogenous pollution and the like can be caused by improper segmentation operation, so that the accuracy of a test result is affected. The in-situ test is a test on the sediment in the original position or basically in the in-situ state condition, so that the disturbance or pollution of the sampling, preserving, cutting and other processes to the sample can be effectively avoided, and the actual state property of the sediment can be more accurately reflected. Due to the limitations of technical conditions, test cost, test instruments and other factors, the factors influencing in-situ test results are complex, the in-situ test application is limited, and the sampling test is still a main means for researching the marine deposition environment at the present stage.
At present, no device for reducing disturbance and exogenous pollution and rapidly and accurately cutting a sediment columnar sample is considered, and no method for accurately cutting the sample is considered from the sampling stage. The conventional cutting of the sediment columnar sample is mainly carried out manually, the obtained sediment columnar sample is generally firstly longitudinally cut into two semicircular columnar samples, and then the sample is cut according to the requirement by using tools such as a soil cutter and the like to compare with a scale.
Generally, the slicing of the deposited columnar sample tends to be directly perpendicular to the longitudinal direction of the column, provided that the columnar sample is collected perpendicular to the deposited layer. In practice, the accuracy of the segmentation is questionable when the pillars are collected under the influence of field conditions and formation distribution, and an uncertain angular relationship exists between the pillars and the deposited layer, especially when fine segmentation is performed at a high resolution and a small distance. In addition, the manual cutting has the problems of large error, low efficiency, easy introduction of chip pollution, vibration disturbance and the like. How to reduce the pollution and disturbance of the cutting process to the sample, and cut the sediment columnar sample rapidly and accurately is a technical problem to be solved in the research of marine sediment.
Disclosure of Invention
The invention aims to provide a rapid sample dividing platform for a columnar sediment sample, so as to fill the technical blank that the columnar sediment sample dividing can be accurately and rapidly carried out at present, and simultaneously provide a method for dividing the columnar sediment sample so as to improve the accuracy of dividing the columnar sediment sample.
In order to achieve the above purpose, the invention adopts a technical scheme that: a rapid sample dividing platform for columnar sediment samples comprises an operation table top, a fixed clamping device, a sectioning device and a stepping sample dividing device; a plurality of clamping and fixing devices are arranged on the operation table top at intervals along the length direction; two sides of the fixed clamping device are respectively provided with a sliding rail and a rack guide rail which are parallel to each other; the sectioning device is connected to the sliding rail in a sliding way; one side of the stepping sample separating device is connected to the sliding rail in a sliding way, and the other side of the stepping sample separating device is meshed to the rack guide rail through a gear.
Further, the fixing and clamping device consists of a fixing base and a fixing hoop, and the fixing base is fixed on the operating table top; the fixed hoop is hinged with one side of the fixed base, and can be opened or closed in a rotating way along the hinge shaft; the fixed base and the fixed anchor ear are provided with semicircular grooves with the same radius.
Further, a jacking device is arranged on one hinged side of the fixed hoop, and comprises a jacking screw and a fixed bolt; the lower end of the fixed bolt is connected with the operation table top, and the upper end of the fixed bolt is provided with a nut; the jacking screw penetrates through the nut and can move back and forth along the nut, so that the side face of the fixed hoop is jacked or loosened.
Further, the top of the fixed anchor ear is provided with a long groove, and the fixed bolt penetrates through the long groove to be fixed with the operating table top.
Further, the cutting device comprises a cutting knife, a T-shaped sliding rail, a T-shaped sliding block and a sliding block, wherein the horizontal part of the T-shaped sliding block is assembled on the sliding rail; the vertical part of the T-shaped sliding block is assembled with the vertical part of the T-shaped sliding rail; the horizontal part of the T-shaped sliding rail is assembled with the sliding block; one end of the sliding block is fixed with a motor, and the motor is connected with the cutting knife.
Further, the stepping sample separating device consists of a bracket, an angle device, a stepping handle and a sample separating blade, wherein the bracket spans over the slide rail and the rack guide rail, one side of the bracket is provided with a slide block, and the other side of the bracket is provided with a gear; the middle part of the bracket is provided with an annular chute; an angle device is assembled in the annular chute; the angle device is provided with a sample separating blade which is vertically arranged.
Further, the gear is connected with a handle.
Further, scale marks are marked on the operation table surface along the arrangement direction of the fixed clamping device.
The invention adopts another technical scheme that: the rapid sample dividing method for columnar sediment samples utilizes the sample dividing platform to divide the samples, and specifically comprises the following steps:
(1) Firstly, carrying out X-ray image scanning on a columnar sample, rotating the columnar sample, obtaining the clearest layer cloth image when the X-ray direction is parallel to the deposited layer cloth, and marking the angle distribution of different layers;
(2) Determining a section of a sample, wherein the section is a plane which is perpendicular to the cloth surface of a sediment layer and passes through the long axis of the columnar sample, and the columnar sample is split along the section to obtain two half samples which are mirror symmetry;
(3) And (3) dividing and recording the sample along the direction parallel to the deposited layer according to the corresponding marking angle on the X-ray image.
Compared with the prior art, the invention has the following beneficial effects:
the invention has reasonable structure, convenient operation and proper method, can well solve the problems of cutting error, aggravated disturbance, exogenous pollution, low efficiency and the like when the columnar sample of the sediment is continuously cut manually, can rapidly and accurately continuously divide the columnar sediment, can adjust and correct the cutting angle according to the actual sampling condition, and improves the rationality and the accuracy of the sample cutting. The sample separation platform method is an important supplement to the current columnar sediment sample separation technology.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a rapid sample-dividing stage for columnar sediment samples in example 1 of the present invention;
FIG. 2 is a top view of a rapid sample separation platform for columnar sediment samples in example 1 of the present invention;
FIG. 3 is a schematic view of the structure of the fixing clamp device in embodiment 1 (closed state);
fig. 4 is a schematic structural view (open state) of the fixing clamp device in embodiment 1;
FIG. 5 is a schematic view showing the structure of a sectioning device in embodiment 1;
FIG. 6 is an exploded view of the sectioning device of example 1;
FIG. 7 is a schematic diagram of a step-by-step sample separating apparatus in embodiment 1;
FIG. 8 is a front view of the step-and-sample apparatus in example 1;
fig. 9 is a schematic structural view of the bracket in embodiment 1;
fig. 10 is a bottom view of the bracket of embodiment 1;
FIG. 11 is a schematic view showing the structure of a sample separation blade in example 1;
FIG. 12 is a schematic view of the structure of the angle gauge in embodiment 1;
fig. 13 is a schematic view of the structure of the fixing clamp device in embodiment 2 (closed state);
fig. 14 is a schematic view of the structure of the fixing clamp device in embodiment 2 (open state);
FIG. 15 is a schematic view showing the central axis of the columnar sample and the deposition layer in example 3;
FIG. 16 is a schematic view of the sample of example 3 after being split along a cross-section;
the device comprises a supporting leg, an operating table top, a leveling foot pad, a sliding rail, a 5-shaped rack guide rail, a 6-shaped cutting device, a 7-shaped stepping sample dividing device, a 8-shaped fixed clamping device, a 9-shaped fixed base, a 10-shaped fixed hoop, a 11-shaped fixed bolt, a 12-shaped butterfly screw, a 13-shaped motor, a 14-shaped chipless cutting knife, a 15-shaped sliding rail, a 16-shaped T-shaped sliding block, a 17-shaped bracket, a 18-shaped angle gauge, a 19-shaped stepping handle, a 21-shaped blade body, a 22-shaped thin-wall handheld plate, a 23-shaped narrow slit, a 24-shaped tool passing groove, a 25-shaped semicircular notch; 26. a first slider; 27. a gear; 28 a second slider; 29. a clamping block; 30. an annular chute.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different 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.
Embodiment 1 the rapid sample-dividing platform for columnar sediment samples provided in this embodiment has an overall structure as shown in fig. 1 and 2, and mainly comprises four parts, namely an operation table top 2, a sectioning device 6, a stepping sample-dividing device 7 and a fixing and clamping device 8. The operation table top 2 is a basic bearing platform of the whole device, and is supported by four supporting legs 1, leveling foot pads 3 are arranged at the bottoms of the supporting legs 1, and the operation table top 2 can be adjusted through the leveling foot pads 3 to be in a stable state.
On the operating table 2, a series of fixing and clamping devices 8 are provided in the length direction and marked with graduation marks, and a slide rail 4 and a rack guide rail 5 are parallel thereto. The slide rail 4 and the rack guide rail 5 are respectively positioned at two sides of the fixed clamping device 8. The operation table top 2 is also provided with a sectioning device 6 and a stepping sample separating device 7, wherein the sectioning device 6 is assembled on the slide rail 4 and can move left and right along the slide rail 4, the stepping sample separating device 7 spans on two sides of the fixed clamping device 8, one side of the stepping sample separating device is in sliding connection with the slide rail 4, and the other side of the stepping sample separating device is in gear engagement connection with the rack guide rail 5. The fixed clamping device 8 is used for evenly clamping and fixing the plastic or metal sampling tube shell of the sediment columnar sample, the sectioning device 6 is used for sectioning the sampling tube shell, and the stepping sample dividing device 7 is used for rapidly sectioning the sample.
As shown in fig. 3, the fixing and clamping device 8 is composed of a fixing base 9, a fixing hoop 10, a fixing bolt 11 and a butterfly-shaped jacking screw 12, the fixing base 9 is fixed on the operating table surface 2 by bolts, the fixing hoop 10 is hinged with the fixing base 9 at the side face by a pin shaft, and the fixing hoop 10 can be rotated to open and close along the rotating shaft. The fixed base 9 and the fixed anchor ear 10 are symmetrical structures with semicircular grooves, and when the fixed anchor ear 10 is rotated and closed along the rotating shaft, an internal accommodating cavity is formed together with the fixed base 9, so that a fixed columnar sample is accommodated. It should be noted that in the closed state, the fixed anchor ear 10 and the fixed base 9 leave a certain gap for passing the chipless cutter on the sectioning device 6 so as to section the casing of the sampling tube for the column-shaped sample.
When a columnar sample is fixed, in order to keep the fixed anchor ear 10 and the fixed base 9 in a closed state, a fixed plug 11 and a butterfly screw 12 are arranged on the hinged side of the fixed anchor ear 10 and the fixed base 9, the fixed plug 11 is vertically arranged on the operation table top 2 and can be directly inserted into and installed with a preset hole on the operation table top 2, a nut is arranged at the top of the fixed plug 11, the butterfly screw 12 penetrates through the nut, the tail end of the butterfly screw 12 is opposite to the side face of the fixed anchor ear 10, and the butterfly screw 12 is screwed down by rotation, so that the butterfly screw can move towards the fixed anchor ear 10 until the fixed anchor ear is propped up, so that the fixed anchor ear can not be opened by rotation, as shown in fig. 3. When the fixed hoop needs to be opened, the butterfly screw 12 can be rotated and loosened, then the fixed bolt 11 is pulled out from the operation table top 2, and the fixed hoop 10 can be opened by rotating along the shaft, and the opened state is shown in fig. 4.
As shown in fig. 5 and 6, the sectioning device 6 is composed of a motor 13, a chipless cutter 14, a T-shaped slide rail 15, a T-shaped slider 16, and a first slider 26. The horizontal part of the T-shaped sliding block 16 is in sliding assembly with the sliding rail 4, so that the T-shaped sliding block 16 can move left and right along the sliding rail 4, the vertical part of the T-shaped sliding block 16 is in sliding assembly with the vertical part of the T-shaped sliding rail 15, the T-shaped sliding rail 15 can move up and down along the T-shaped sliding block 16 in the vertical direction, the horizontal part of the T-shaped sliding rail 15 is in sliding assembly with the first sliding block 26, and the T-shaped sliding rail 15 can move forward and backward along the first sliding block 26 in the horizontal direction. The front end of the first sliding block 26 is fixed with a motor 13, a chipless cutter 14 is arranged on the shaft of the motor 13, and when the motor is started, the chipless cutter 14 can be driven to rotate to cut the casing of the sampling tube of the column-shaped sample. In order to fix the position of the T-shaped slide rail 15, butterfly screws 12 are respectively arranged on the vertical part of the T-shaped slide block 16 and the first slide block 26, and the T-shaped slide rail 15 can be tightly propped and fixed by tightening the screws.
As shown in fig. 7 and 8, the step-and-sample separating device 7 is composed of a bracket 17, an angle device 18, a step handle 19, a sample separating blade, a gear 27, a second slider 28, and a fixture block 29. The support 17 spans on the slide rail 4 and the rack guide rail 5, one side is in sliding connection with the slide rail 4 through a second sliding block 28, the other side is meshed with the rack guide rail 5 through a clamping block 29 and a gear 27, the gear 27 is positioned in the clamping block 29, and the stepping handle 19 passes through the clamping block 29 to be connected with the gear 27. When the stepping handle 19 is rotated, the stepping handle drives the gear 27 to rotate, so that the gear moves along the rack guide rail 5, the stepping handle 19 is fixedly stepped at a minimum interval of 0.5cm, and the stepping sample separating device can be accurately controlled to move at a constant speed through the stepping handle.
The support 17 is structured as shown in fig. 9 and 10, and comprises a second slider 28 and a clamping block 29 at two sides, and a middle annular chute 30, wherein the annular chute 30 is provided with a notch. The angle gauge 18 is slidably mounted in the annular chute 30 so as to be rotatable in a horizontal plane along the annular chute 30. The notch is used for taking out the angle device.
The structure of the angle device is shown in fig. 12, and comprises a narrow slit 23, a cutter passing groove 24 and a semicircular notch 25, wherein the narrow slit 23 is used for fixing the sample separating blade, and the cutter passing groove 24 and the semicircular notch 25 are used for allowing the sample separating blade to pass through. The sample separation blade has a structure as shown in fig. 11, and comprises a blade body 21 and a thin-walled holding plate 22, wherein the length of the thin-walled holding plate 22 is smaller than the width of the cutter passing groove 24 so as to enable the sample separation blade to pass smoothly.
The invention relates to a rapid sample separating platform for columnar sediment samples, which is characterized by comprising the following working principles:
the columnar sample and the sampling tube are placed into the fixed base 9, the fixed anchor ear 10 is rotated to be closed with the fixed base 9, and the butterfly screw on the fixed plug 11 is screwed up and abutted against the side face of the fixed anchor ear 10 to fix the columnar sample and the sampling tube.
The positions of the T-shaped sliding rail 15 and the T-shaped sliding block 16 are adjusted, so that the chipless cutting knife 14 stretches into a gap between the fixed base and the fixed hoop, the motor 13 is started, the sampling tube shell is cut, and the T-shaped sliding block 16 moves on the sliding rail 4 to complete integral cutting on one side of the sampling tube shell. The column sample and coupon were rotated 180 ° and side sectioned in the same manner as described above.
After the angle of the angle regulator 18 is regulated by the stepping handle 19, a sample separating blade is inserted downwards through a narrow slit 23 on the angle regulator 18 to finish the cutting of the columnar sample, then the stepping handle 19 is used for moving the bracket 17 to the next station, the angle is regulated again, and a new sample separating blade is taken to cut until the whole columnar sample is cut.
Example 3 this example provides a rapid sample separation method for columnar sediment samples, in which the samples are usually cut directly perpendicular to the central axis direction during sediment sample separation, regardless of the actual relationship between the sample layer and the axis. The gravity sampler is designed to be ideal enough, so that the falling gesture of the gravity sampler can be effectively controlled, and the sampling axis is ensured to be vertical to the stratum surface. As shown in fig. 15, assuming that the deposition layer is parallel to the surface xOy, the central axis of the sampling tube is OP, when the sampling tube is not perpendicular to the stratum during sampling, a certain included angle beta not equal to 90 degrees exists between the OP and the surface xOy, and OP' is the projection of the OP on the xOy plane. The sample segmentation is carried out along the plane vertical to the OP direction, which obviously is not in line with the actual stratum deposition distribution condition, especially when the samples are separated at a small interval and high resolution, the sediments at different layers can be divided into the same sample, so that the test results are mixed and the characteristics are not obvious.
Aiming at the problems, the invention provides a sample dividing method for solving the problems, which comprises the following steps:
(1) Before the columnar sample is split, X-ray image scanning is firstly carried out, the columnar sample is rotated, when the X-ray direction is parallel to the deposited layer cloth, the clearest layer cloth image is obtained, and the angle distribution of different layers is marked.
(2) The cut surface of the sample was thus determined as a plane (plane OCPP' in fig. 15) perpendicular to the deposit layer cloth plane xOy and passing through the axis OP, and the columnar sample was cut along the cut surface to obtain two half samples of mirror symmetry.
(3) And (3) dividing and recording the sample along the direction parallel to the deposited layer according to the corresponding marking angle on the X-ray image. The method can ensure that the cut samples are consistent with the actual deposition layer cloth, reduce the mixing of deposition samples at different layers and improve the accuracy of sample cut.
In the method provided in this embodiment, the sample splitting platform in embodiment 1 is used for splitting the columnar sample, and the specific splitting process is as follows:
(1) Selecting a proper fixed base 9 and a proper fixed hoop 10 according to the radius of a sediment columnar sample, selecting a proper stepping handle according to the cutting interval, determining a subdivision plane according to the X-ray scanning horizon characteristic of the columnar sample, and marking the position of the subdivision line;
(2) Placing a columnar sample and a sampling tube in a semicircular groove of a fixed base, closing a fixed anchor ear 10, inserting a fixed plug 11 into a corresponding fixed hole of an operation table, rotating a butterfly screw 12 to prop against the fixed anchor ear 10, and clamping the casing of the sampling tube;
(3) Loosening the butterfly screw 12 on the T-shaped slide rail 15, moving the T-shaped slide rail 15 up and down, left and right, adjusting the position of the chipless cutting knife 14, enabling the cutting knife to be positioned at the same height with the circle center of the columnar sample in the horizontal direction, cutting the shell but not cutting through the shell (the depth is about 0.5mm from the inner wall), and tightening the butterfly screw 12 to fix the position of the chipless cutting knife 14;
(4) The power supply of the motor 13 is turned on, and meanwhile, the T-shaped sliding block 16 is slowly pushed to move along the sliding rail 4, so that the shell is cut; rotating the columnar sample by 180 ° to perform contralateral dissection in the same manner as described above; the sample after being split along the cut surface is shown in fig. 16;
(5) Loosening the butterfly screw 12 on the fixed clamping device 8, opening the fixed anchor ear 10, cutting the groove line along the chipless cutting knife by using a wallpaper knife, and cutting the residual shell to remove the upper semicircular shell;
(6) Aligning the sample starting end, the stepping handle 19 and the starting graduation line, and adjusting the angle of the angle gauge 18 according to the requirement (suggesting that the narrow slit plane of the angle gauge 18 is parallel to the deposition layer displayed by the X-ray image);
(7) Rotating the stepping handle 19 to enable the bracket 17 to move backwards by one subdivision interval, taking a sample separating blade, and inserting the sample separating blade along a narrow slit in the middle of the angle device 18 to finish sample separation;
and (3) repeating the step (7) to quickly finish the subsequent sample segmentation, and cleaning and maintaining the device after the work is finished.
Claims (6)
1. A rapid sample separation platform for columnar sediment samples, which is characterized in that: comprises an operation table top, a fixed clamping device, a sectioning device and a stepping sample separating device; the fixed clamping devices are arranged on the operation table top at intervals along the length direction; two sides of the fixed clamping device are respectively provided with a sliding rail and a rack guide rail which are parallel to each other; the cutting device comprises a cutting knife, a T-shaped sliding rail, a T-shaped sliding block and a first sliding block, wherein the horizontal part of the T-shaped sliding block is assembled on the sliding rail; the vertical part of the T-shaped sliding block is assembled with the vertical part of the T-shaped sliding rail; the horizontal part of the T-shaped sliding rail is assembled with the first sliding block; one end of the first sliding block is fixed with a motor, and the motor is connected with the cutting knife; the stepping sample separating device consists of a bracket, an angle device, a handle and a sample separating blade; the support spans over the slide rail and the rack guide rail, one side of the support is provided with a second sliding block, and the other side of the support is provided with a gear; one side of the bracket is in sliding connection with the sliding rail through a second sliding block, the other side of the bracket is meshed with the rack guide rail through a clamping block and a gear, the gear is positioned in the clamping block, and the stepping handle penetrates through the clamping block and is connected with the gear; the middle part of the bracket is provided with an annular chute; an angle device is assembled in the annular chute; the angle device is provided with a sample separating blade which is vertically arranged.
2. The rapid sample separation platform for columnar sediment samples according to claim 1, wherein: the fixed clamping device consists of a fixed base and a fixed hoop, and the fixed base is fixed on the operating table top; the fixed hoop is hinged with one side of the fixed base, and can be opened or closed in a rotating way along the hinge shaft; the fixed base and the fixed anchor ear are provided with semicircular grooves with the same radius; in the closed state, a certain gap is reserved between the fixed hoop and the fixed base.
3. The rapid sample separation platform for columnar sediment samples according to claim 2, wherein: a jacking device is arranged at one hinged side of the fixed hoop, and comprises a jacking screw and a fixed bolt; the lower end of the fixed bolt is connected with the operation table top, and the upper end of the fixed bolt is provided with a nut; the jacking screw penetrates through the nut and can move back and forth along the nut, so that the side face of the fixed hoop is jacked or loosened.
4. A rapid sampling platform for columnar sediment samples according to claim 3, characterized in that: the top of the fixed anchor ear is provided with a long groove, and the fixed bolt passes through the long groove.
5. The rapid sampling platform for columnar sediment samples according to any one of claims 1 to 4, wherein: and scale marks are marked on the operating table surface along the arrangement direction of the fixed clamping device.
6. A rapid sample separation method for columnar sediment samples, which is characterized by comprising the following steps of: the method for cutting the sample by using the rapid sample separation platform of the columnar sediment sample according to any one of claims 1 to 4, specifically comprising the following steps: (1) Firstly, carrying out X-ray image scanning on a columnar sample, rotating the columnar sample, obtaining the clearest layer cloth image when the X-ray direction is parallel to the deposited layer cloth, and marking the angle distribution of different layers; (2) Determining a section of a sample, wherein the section is a plane which is perpendicular to the cloth surface of a sediment layer and passes through the long axis of the columnar sample, and the columnar sample is split along the section to obtain two half samples which are mirror symmetry; (3) And (3) dividing and recording the sample along the direction parallel to the deposited layer according to the corresponding marking angle on the X-ray image.
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| JP5165666B2 (en) * | 2009-11-10 | 2013-03-21 | 一般財団法人電力中央研究所 | Columnar sampling method and sampling apparatus |
| CN106378821B (en) * | 2016-12-12 | 2018-06-15 | 国家海洋局第二海洋研究所 | Column shaped deposit cutting equipment and method |
| CN108181126B (en) * | 2017-12-24 | 2019-12-03 | 自然资源部第一海洋研究所 | Column shaped deposit sample divides sampling device |
| CN111993477A (en) * | 2020-09-14 | 2020-11-27 | 广州特种承压设备检测研究院 | Wafer sample manufacturing device |
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