CN218331749U - High-precision resistivity detector - Google Patents
High-precision resistivity detector Download PDFInfo
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- CN218331749U CN218331749U CN202222512787.2U CN202222512787U CN218331749U CN 218331749 U CN218331749 U CN 218331749U CN 202222512787 U CN202222512787 U CN 202222512787U CN 218331749 U CN218331749 U CN 218331749U
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- resistivity
- embedded block
- pressing plate
- base
- precision
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- 230000007246 mechanism Effects 0.000 claims abstract description 15
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 silver and gold Chemical class 0.000 description 1
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Abstract
The utility model relates to an electrical resistivity detects technical field, specifically discloses a high accuracy electrical resistivity detects machine, include: the device comprises a base, a lower embedded block, a pressing plate, an upper embedded block, a linear driving mechanism and a resistivity detector, wherein the lower embedded block is arranged on the base, the pressing plate is arranged on the base, the upper embedded block is arranged on the pressing plate, the linear driving mechanism is used for driving the upper embedded block to be matched with the lower embedded block downwards to press a workpiece to be detected, and the resistivity detector is used for detecting the resistivity of the workpiece to be detected through the lower embedded block and the upper embedded block; wherein the hardness of the base is greater than the hardness of the lower insert, and the resistivity of the lower insert is less than the resistivity of the base; the hardness of the pressing plate is greater than that of the upper embedded block, and the resistivity of the upper embedded block is smaller than that of the pressing plate. The utility model provides a high accuracy resistivity detects machine can effectively solve the lower problem of resistivity detection precision of current resistivity detection machine.
Description
Technical Field
The utility model relates to an electrical resistivity detects technical field, especially relates to a high accuracy electrical resistivity detects machine.
Background
As shown in fig. 1, the conventional resistivity tester includes:
the base 1 is used for placing a conductive gasket 5 to be detected;
the pressing plate 2 is positioned above the base 1;
the driving end of the pressing cylinder 3 is connected with the pressing plate 2 and used for driving the pressing plate 2 to press the conductive gasket 5 downwards;
and the positive electrode of the resistivity detector 4 is electrically connected with the pressing plate 2, and the negative electrode of the resistivity detector 4 is electrically connected with the base 1.
Specifically, when the resistivity of the conductive pad 5 is detected, the steps are as follows:
(1) placing the conductive pad 5 on the base 1;
(2) the pressing cylinder 3 drives the pressing plate 2 to press the conductive gasket 5 downwards;
(3) and starting the resistivity detector 4, and electrically connecting the resistivity detector with the conductive gasket 5 through the pressing plate 2 and the base 1 respectively so as to test the resistivity of the conductive gasket 5.
In the resistivity detection process, the base 1 and the pressing plate 2 are made of copper, and the resistivity is higher than that of low-impedance metal such as silver, gold and the like, so that finally measured resistivity data of the conductive gasket 5 are greatly influenced by the base 1 and the pressing plate 2, and the accuracy is lower.
However, if the base 1 and the pressing plate 2 are made of low-resistance metals such as silver and gold, the hardness of silver and gold is low, and when the pressing cylinder 3 presses the pressing plate 2 to match with the base 1 to press the conductive gasket 5, the pressing plate 2 and the base 1 are both easy to deform laterally (specifically, easy to be flattened), so that the base 1 and the pressing plate 2 cannot be made of low-resistance metals such as silver and gold.
Therefore, improvement of the existing resistivity detection machine is needed to solve the problem of low resistivity detection precision.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high accuracy resistivity detects machine, can effectively solve the lower problem of resistivity detection precision of current resistivity detection machine.
For reaching above purpose, the utility model provides a high accuracy resistivity detects machine, include:
the upper surface of the base is provided with a lower positioning groove;
the lower embedded block is positioned in the lower positioning groove and used for placing a workpiece to be detected;
the pressing plate is positioned above the base, and an upper positioning groove is formed in the bottom of the pressing plate;
the upper embedded block is positioned in the upper positioning groove;
the driving end of the linear driving mechanism is connected with the pressing plate and used for driving the upper embedded block to be matched with the lower embedded block downwards to press the workpiece to be detected;
the resistivity detector is electrically connected with the lower embedded block and the upper embedded block respectively and is used for detecting the resistivity of the workpiece to be detected through the lower embedded block and the upper embedded block;
wherein,
the hardness of the base is greater than that of the lower embedded block, and the resistivity of the lower embedded block is smaller than that of the base;
the hardness of the pressing plate is greater than that of the upper embedded block, and the resistivity of the upper embedded block is smaller than that of the pressing plate.
Optionally, the upper surface of the lower insert is higher than the upper surface of the base;
the lower surface of the upper insert block is lower than the lower surface of the pressure plate.
In the alternative,
the positive electrode of the resistivity detector is electrically connected with the upper embedded block, and the negative electrode of the resistivity detector is electrically connected with the lower embedded block;
or,
the positive pole of the resistivity detector is electrically connected with the lower embedded block, and the negative pole of the resistivity detector is electrically connected with the upper embedded block.
Optionally, the upper insert and the lower insert are electrically connected to the resistivity detector through a wire respectively.
Optionally, the base and the pressing plate are both provided with wire passing holes for the corresponding wires to pass through.
Optionally, the base and the pressing plate are both made of copper, and the lower insert block and the upper insert block are both made of silver or gold.
Optionally, the linear driving mechanism is an air cylinder or a motor screw rod module.
Optionally, a distance sensor for detecting the position of the pressing plate is arranged below the pressing plate.
The beneficial effects of the utility model reside in that, a high accuracy resistivity detection machine is provided:
on one hand, the workpiece to be detected is electrically connected with the resistivity detector through the upper embedded block and the lower embedded block with lower resistivity, and the upper embedded block and the lower embedded block have small influence on the resistivity detection result of the workpiece to be detected, so that the resistivity detection precision of the workpiece to be detected can be effectively improved;
on the other hand, the lower embedded block is positioned in the lower positioning groove of the base, and the hardness of the base is higher, so that the transverse deformation of the lower embedded block can be limited by the lower positioning groove, and the problem that the lower embedded block is flattened in the detection process is further avoided; in a similar way, the upper embedded block is positioned in the upper positioning groove of the pressing plate, and the hardness of the pressing plate is higher, so that the transverse deformation of the upper embedded block can be limited by the upper positioning groove, and the problem that the upper embedded block is flattened in the detection process is avoided.
Therefore, the utility model provides a high accuracy resistivity detects machine, the resistivity that can effectively solve current resistivity and detect machine detects the lower problem of precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of a prior art resistivity tester provided in the background art;
fig. 2 is a schematic structural diagram of a high-precision resistivity detector provided in the embodiment.
In the figure:
1. a base;
2. pressing a plate;
3. pressing down the air cylinder;
4. a resistivity detector;
5. a conductive pad;
6. a lower insert block;
7. an upper embedded block;
8. a linear drive mechanism;
9. a wire;
10. a wire passing hole;
11. a distance sensor.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.
The utility model provides a high accuracy resistivity detection machine is applicable to and carries out the application scene of resistivity test to the work piece that awaits measuring such as conducting pads piece, and its resistivity that can effectively solve current resistivity detection machine detects the lower problem of precision.
Referring to fig. 2, in the present embodiment, the high-precision resistivity tester includes a base 1, a lower insert 6, a pressing plate 2, an upper insert 7, a linear driving mechanism 8, and a resistivity tester 4.
The upper surface of the base 1 is provided with a lower positioning groove; the lower embedded block 6 is located in the lower positioning groove, and the upper surface of the lower embedded block 6 is higher than the upper surface of the base 1 and used for placing a workpiece to be detected.
The pressing plate 2 is positioned above the base 1, and an upper positioning groove is formed in the bottom of the pressing plate 2; the upper embedded block 7 is located in the upper positioning groove, and the lower surface of the upper embedded block 7 is lower than the lower surface of the pressing plate 2 so as to be matched with the upper surface of the lower embedded block 6 to press a workpiece to be measured.
The driving end of the linear driving mechanism 8 is connected with the pressing plate 2 and used for driving the pressing plate 2 to move downwards, so that the upper embedded block 7 is matched with the lower embedded block 6 downwards to press the workpiece to be measured.
The resistivity detector 4 is electrically connected with the lower embedded block 6 and the upper embedded block 7 respectively and is used for detecting the resistivity of the workpiece to be detected through the lower embedded block 6 and the upper embedded block 7. Optionally, the positive electrode of the resistivity detector 4 is electrically connected to the upper slug 7, and the negative electrode of the resistivity detector 4 is electrically connected to the lower slug 6; or the anode of the resistivity detector 4 is electrically connected with the lower insert 6, and the cathode of the resistivity detector 4 is electrically connected with the upper insert 7.
Wherein,
the hardness of the base 1 is greater than that of the lower embedded block 6, and the resistivity of the lower embedded block 6 is less than that of the base 1;
the hardness of the pressing plate 2 is greater than that of the upper embedded block 7, and the resistivity of the upper embedded block 7 is smaller than that of the pressing plate 2;
for example, the base 1 and the pressing plate 2 are made of copper, and the lower insert 6 and the upper insert 7 are made of silver or gold.
It should be noted that, the high-precision resistivity detector provided in this embodiment:
on one hand, the workpiece to be detected is electrically connected with the resistivity detector 4 through the upper embedded block 7 and the lower embedded block 6, and the resistivity of the upper embedded block 7 and the resistivity of the lower embedded block 6 are lower, so that the resistivity detection result of the workpiece to be detected is less influenced by the upper embedded block 7 and the lower embedded block 6, and the resistivity detection precision of the workpiece to be detected can be effectively improved;
on the other hand, the lower embedded block 6 is positioned in the lower positioning groove of the base 1, and the hardness of the base 1 is higher, so that the transverse deformation of the lower embedded block 6 can be limited by the lower positioning groove, and the problem that the lower embedded block 6 is squashed in the detection process is further avoided; similarly, the upper insert 7 is located in the upper positioning groove of the pressing plate 2, and the hardness of the pressing plate 2 is high, so that the transverse deformation of the upper insert 7 can be limited by the upper positioning groove, and the problem that the upper insert 7 is squashed in the detection process is solved.
Therefore, the utility model provides a high accuracy resistivity detects machine can effectively solve the lower problem of resistivity detection precision of current resistivity detection machine.
In this embodiment, the upper insert 7 and the lower insert 6 are electrically connected to the resistivity tester 4 through a conducting wire 9. Further, the base 1 and the pressing plate 2 are both provided with wire passing holes 10 for the corresponding wires 9 to pass through. That is, when the resistivity detector 4 detects the workpiece to be detected, the current does not pass through the pressing plate 2 and the base 1, and the influence of the pressing plate 2 and the base 1 on the accuracy of the detection result is further reduced. Optionally, in order to improve the detection accuracy, the wire 9 may be a silver wire or a gold wire.
Optionally, the linear driving mechanism 8 is an air cylinder or a motor screw rod module. The specific structure of the resistivity detector 4 belongs to the prior art, which is not the key point of the present invention, and therefore, the detailed description thereof is omitted.
In this embodiment, a distance sensor 11 for detecting the position of the pressing plate 2 is provided below the pressing plate 2. It can be understood that when the linear driving mechanism 8 applies different pressures to the pressing plate 2, the degree of compression of the workpiece to be measured will also change, for example, when the linear driving mechanism 8 applies a larger pressure to the pressing plate 2, the degree of compression of the workpiece to be measured is larger, and the distance from the sensor 11 to the pressing plate 2 is shorter; when the linear driving mechanism 8 applies a small pressure to the pressing plate 2, the workpiece to be measured is extruded to a small extent, and the distance from the sensor 11 to the pressing plate 2 is long. According to the distance size of the pressing plate 2, the pressure applied to the pressing plate 2 by the linear driving mechanism 8 can be reversely pushed; or, according to the pressure applied to the pressing plate 2 by the linear driving mechanism 8 and the distance size of the pressing plate 2 acquired by the distance sensor 11, whether the deformation condition of the workpiece to be detected reaches the standard can be judged.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A high-precision resistivity tester, comprising:
the device comprises a base (1), wherein a lower positioning groove is formed in the upper surface of the base (1);
the lower embedded block (6) is positioned in the lower positioning groove and used for placing a workpiece to be detected;
the pressing plate (2) is positioned above the base (1), and an upper positioning groove is formed in the bottom of the pressing plate (2);
the upper embedded block (7), the upper embedded block (7) is positioned in the upper positioning groove;
the driving end of the linear driving mechanism (8) is connected with the pressing plate (2) and is used for driving the upper embedded block (7) to be matched with the lower embedded block (6) downwards to press the workpiece to be detected;
the resistivity detector (4) is respectively and electrically connected with the lower embedded block (6) and the upper embedded block (7) and is used for detecting the resistivity of the workpiece to be detected through the lower embedded block (6) and the upper embedded block (7);
wherein,
the hardness of the base (1) is greater than that of the lower embedded block (6), and the resistivity of the lower embedded block (6) is less than that of the base (1);
the hardness of the pressing plate (2) is greater than that of the upper embedded block (7), and the resistivity of the upper embedded block (7) is smaller than that of the pressing plate (2).
2. The high-precision resistivity tester according to claim 1, wherein the upper surface of the lower insert (6) is higher than the upper surface of the base (1);
the lower surface of the upper embedded block (7) is lower than the lower surface of the pressing plate (2).
3. The high-precision resistivity tool of claim 1,
the positive electrode of the resistivity detector (4) is electrically connected with the upper embedded block (7), and the negative electrode of the resistivity detector (4) is electrically connected with the lower embedded block (6);
or,
the positive electrode of the resistivity detector (4) is electrically connected with the lower embedded block (6), and the negative electrode of the resistivity detector (4) is electrically connected with the upper embedded block (7).
4. The high-precision resistivity tester according to claim 3, wherein the upper insert (7) and the lower insert (6) are electrically connected to the resistivity tester (4) through one conducting wire (9) respectively.
5. The high-precision resistivity tester according to claim 4, wherein the base (1) and the pressure plate (2) are provided with wire through holes (10) for the corresponding wires (9) to pass through.
6. The high-precision resistivity tester according to claim 1, wherein the base (1) and the pressing plate (2) are made of copper, and the lower insert (6) and the upper insert (7) are made of silver or gold.
7. The high-precision resistivity tester according to claim 1, wherein the linear driving mechanism (8) is a cylinder or a motor screw module.
8. The high-precision resistivity tester according to claim 1, wherein a distance sensor (11) for detecting the position of the pressure plate (2) is provided below the pressure plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512787.2U CN218331749U (en) | 2022-09-22 | 2022-09-22 | High-precision resistivity detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512787.2U CN218331749U (en) | 2022-09-22 | 2022-09-22 | High-precision resistivity detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218331749U true CN218331749U (en) | 2023-01-17 |
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ID=84819519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222512787.2U Active CN218331749U (en) | 2022-09-22 | 2022-09-22 | High-precision resistivity detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218331749U (en) |
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- 2022-09-22 CN CN202222512787.2U patent/CN218331749U/en active Active
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