CN218455669U - Resistance testing tool for planar material - Google Patents
Resistance testing tool for planar material Download PDFInfo
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- CN218455669U CN218455669U CN202222024687.5U CN202222024687U CN218455669U CN 218455669 U CN218455669 U CN 218455669U CN 202222024687 U CN202222024687 U CN 202222024687U CN 218455669 U CN218455669 U CN 218455669U
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- briquetting device
- resistance test
- resistance
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Abstract
The utility model provides a surface form resistance test instrument of material relates to resistance test technical field. This resistance test instrument of face form material, including the briquetting device, the accurate constant head tank that two symmetries set up is seted up to briquetting device upper surface both sides middle part position, the briquetting device is located two accurate constant head tank positions and is provided with the detection electrode that two symmetries set up, two detection electrode upper surface position has all seted up the spacing groove, the briquetting device is insulating material, spacing inslot wall is the screw thread setting. The utility model discloses be provided with different grooves or holes at briquetting device border position, the convenience carries out effectual location and fixed to detecting electrode, and the face form material tiling avoids the material to warp, and the regional shape that awaits measuring simultaneously is variable, greatly improves the square resistance of face form material and tests accurate nature and stability.
Description
Technical Field
The utility model relates to a resistance test technical field specifically is a resistance test instrument of surface form material.
Background
For a planar or thin-film material, the internal structure is assumed to be completely uniform and isotropic, the resistance value of the material with any side length of square is completely the same, and the resistivity is only related to the thickness of the material, so that the planar material with a certain thickness is generally characterized by the sheet resistance R instead of the resistivity.
Therefore, it is important to measure the sheet resistance R of a planar material, and a common method is to measure the resistance value of a square area by using a strip electrode, that is, the sheet resistance, and the sheet resistance measurement in the prior art has the following two disadvantages:
1. the area to be measured between the two electrodes needs to be accurately controlled to be square, the operation is difficult, the operation method is different from the understanding method of personnel, and the measurement error is introduced;
2. the thickness of the material directly influences the square resistance value, the planar material is easy to deform, the thickness of the part to be measured fluctuates under different conditions, and measurement errors are introduced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a resistance test instrument of surface form material has solved the region of awaiting measuring that needs between two electrodes of accurate control is the problem that square and thickness fluctuation that awaits measuring exist measuring error.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a resistance test instrument of face form material, includes the briquetting device, two accurate constant head tanks that the symmetry set up are seted up to briquetting device upper surface both sides middle part position, the briquetting device is located two accurate constant head tank positions and is provided with the detection electrode that two symmetries set up, two the spacing groove has been seted up to detection electrode upper surface.
Preferably, the briquetting device is made of insulating materials, and the inner wall of the limiting groove is in threaded arrangement.
Preferably, the limiting groove is internally connected with an electrode connecting column.
Preferably, the detection electrode includes, but is not limited to, a brass material, an aluminum material, and a silver-plated material.
Preferably, the specific use steps of the resistance testing tool are as follows:
cutting a region for detecting resistance from a planar material, wherein the direction to be sampled can be calibrated by using a straight edge for the material with resistance characteristics having orientation;
placing the cut planar material to be detected on the upper surface of the pressing block device, fixing the planar material to be detected, and simultaneously contacting the positions of two sides of the planar material to be detected with the detection electrodes on the two sides;
screwing the electrode connecting column into a limiting groove of the detection electrode, and connecting the two detection electrodes with resistance measuring equipment through a lead and the electrode connecting column to form a closed loop;
and step four, electrifying the detection electrode through resistance measurement equipment, and then realizing resistance detection of the planar material to be detected.
(III) advantageous effects
The utility model provides a resistance testing tool of surface form material. The method has the following beneficial effects:
the utility model discloses be provided with different grooves or holes at briquetting device border position, the convenience carries out effectual location and fixed to detecting electrode, and the face form material tiling avoids the material to warp, and the regional shape that awaits measuring simultaneously is variable, greatly improves the square resistance of face form material and tests accurate nature and stability.
Drawings
Fig. 1 is a schematic structural diagram of a resistance testing tool for a planar material according to the present invention;
FIG. 2 is a schematic view of an assembly structure of a chamfer detection electrode according to an embodiment of the present invention;
FIG. 3 is a schematic view of an assembly structure of a fillet detecting electrode according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
fig. 5 is a schematic view of an assembly structure of a second chamfer detection electrode according to an embodiment of the present invention;
fig. 6 is the embodiment of the present invention provides a schematic view of an assembly structure of two fillet detecting electrodes.
Wherein, 1, a briquetting device; 2. a detection electrode; 3. a limiting groove; 4. and (6) accurately positioning a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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 work belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-3, the embodiment of the utility model provides a resistance test instrument of face form material, including briquetting device 1, briquetting device 1 upper surface both sides middle part position sets up the accurate constant head tank 4 that two symmetries set up, briquetting device 1 is located two accurate constant head tank 4 positions and is provided with two detection electrode 2 that the symmetry set up, spacing groove 3 has all been seted up to two detection electrode 2 upper surface positions, briquetting device 1 is insulating material, specific including but not limited to timber, inferior gram force board material and glass material, 3 inner walls of spacing groove are the screw thread setting, 3 in-connection in the spacing groove have the electrode connecting post, the shape of 2 bottoms of detection electrode piece is including but not limited to right angle, chamfer and convex setting.
The specific use steps of the resistance testing tool are as follows:
cutting a region for detecting resistance from a planar material, wherein the direction to be sampled can be calibrated by using a straight edge for the material with resistance characteristics having orientation;
placing the cut planar material to be detected on the upper surface of the pressing block device 1, fixing the planar material to be detected, and simultaneously contacting the positions of two sides of the planar material to be detected with the detection electrodes 2 on the two sides;
screwing the electrode connecting column into a limiting groove 3 of the detection electrodes 2, and connecting the two detection electrodes 2 with resistance measuring equipment through a lead and the electrode connecting column to form a closed loop;
and step four, electrifying the detection electrode 2 through resistance measurement equipment, and then realizing resistance detection of the planar material to be detected.
The specific method for fixing the planar material to be detected in the second step is to arrange a magnetic bottom plate in the pressing block device 1, fix the planar material to be detected through the magnetic bottom plate, or arrange a C-shaped clamp at the position of the pressing block device 1, clamp and fix the planar material to be detected through the C-shaped clamp, or arrange a bolt fastening mechanism at the position of the pressing block device 1, and fix the planar material to be detected through the bolt fastening mechanism.
Example two:
as shown in fig. 4-5, the present embodiment is different from the first embodiment in that: the position of the precise positioning groove 4 can be arranged at the two sides of the upper surface of the briquetting device 1, and the detection electrode 2 is connected with the inner wall of the precise positioning groove 4 at the corresponding position in a penetrating and sliding manner.
Example three:
the difference between the present embodiment and the first embodiment is: the material of the briquetting device 1 can be the surface on the side contacting with the planar material to be detected or the part with a certain thickness is an insulating material, and the contact area is larger than or equal to the area to be detected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a resistance test instrument of face form material, its characterized in that includes briquetting device (1), two accurate constant head tank (4) that the symmetry set up are seted up to briquetting device (1) upper surface both sides middle part position, briquetting device (1) is located two accurate constant head tank (4) positions and is provided with detecting electrode (2) that two symmetries set up, two limiting groove (3) have all been seted up to detecting electrode (2) upper surface.
2. Tool for electrical resistance testing of flat material according to claim 1, characterized in that the briquetting device (1) is an insulating material, in particular including but not limited to wood, acrylic board material and glass material.
3. The planar material resistance testing tool as claimed in claim 1, wherein the inner wall of the limiting groove (3) is threaded.
4. The planar material resistance testing tool according to claim 1, wherein an electrode connecting column is arranged in the limiting groove (3).
5. Tool for electrical resistance test of planar materials, as in claim 1, characterized by the fact that the detection electrodes (2) include but are not limited to copper and copper alloy materials, aluminum and aluminum alloy materials and surface silver or gold plated materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024687.5U CN218455669U (en) | 2022-08-02 | 2022-08-02 | Resistance testing tool for planar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024687.5U CN218455669U (en) | 2022-08-02 | 2022-08-02 | Resistance testing tool for planar material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218455669U true CN218455669U (en) | 2023-02-07 |
Family
ID=85122792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222024687.5U Active CN218455669U (en) | 2022-08-02 | 2022-08-02 | Resistance testing tool for planar material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218455669U (en) |
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2022
- 2022-08-02 CN CN202222024687.5U patent/CN218455669U/en active Active
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