CN203299229U - Resistivity measuring clamp for silver alloy wire - Google Patents
Resistivity measuring clamp for silver alloy wire Download PDFInfo
- Publication number
- CN203299229U CN203299229U CN2013200718963U CN201320071896U CN203299229U CN 203299229 U CN203299229 U CN 203299229U CN 2013200718963 U CN2013200718963 U CN 2013200718963U CN 201320071896 U CN201320071896 U CN 201320071896U CN 203299229 U CN203299229 U CN 203299229U
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- terminal
- silver alloy
- base plate
- described current
- alloy wire
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Abstract
The utility model relates to a resistivity measuring clamp for silver alloy wires. The resistivity measuring clamp comprises a pedestal (1), current terminals (3) and pressing bolts (4), wherein the current terminals (3) are symmetrically arranged on two sides of the upper end of the pedestal (1); lower end studs of the current terminals (3) penetrate through the pedestal (1) and locking nuts (2); a through hole (5) is transversely formed in the middle of each current terminal (3); the pressing bolts (4) are vertically arranged on the upper ends of the current terminals (3); the lower ends of the pressing bolts (4) are communicated with the through hole (5); and two potential terminals (6) are oppositely arranged on the pedestal (1) between clamping posts (3). The resistivity measuring clamp is simple in structure and convenient for assembly, and thus a test on the resistivity of contact wires can be rapidly carried out, and the testing time is shortened.
Description
Technical field
The utility model relates to the checkout equipment field of silver alloy, particularly relates to a kind of resistivity measurement fixture of silver alloy wire rod.
Background technology
Contact is a kind of part commonly used in present electrical industry, multiplex in the automatically controlled original papers such as relay, temperature controller, mostly present contact is to adopt silver alloy to make, because the electric conductivity requirement of contact is very high, therefore it is also very high that the electric conductivity of silver alloy requires, can be used at present representing that the physical quantity of material resistance characteristic is exactly resistivity, the electric conductivity of the lower expression material of resistivity is better.
The test formula of resistivity is ρ=RA/L, wherein L is the length of the wire rod of test, A is the area of section of wire rod, R is the resistance of the wire rod of certain-length, estimate in the resistivity of test material and need to measure length, area of section and resistance, but in large quantity ground test resistance rate, will greatly not increase the workload of test if having special test fixture to measure above-mentioned data, and easily go wrong.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of resistivity measurement fixture of silver alloy wire rod, and is simple in structure, easy for installation, can test the resistivity of contact wire rod fast, saved the test duration.
the technical scheme that its technical matters that solves the utility model adopts is: the resistivity measurement fixture that a kind of silver alloy wire rod is provided, comprise base plate, current terminal and hold-down bolt, the upper end symmetria bilateralis of described base plate is equipped with current terminal, the lower end double-screw bolt of described current terminal passes base plate and set nut, the intermediate lateral of described current terminal has through hole, the upper end of described current terminal vertically is equipped with hold-down bolt, the lower end of described hold-down bolt communicates with through hole, two current potential terminals are installed on the base plate between described current terminal relatively.
Described current potential terminal is fixed by screws on base plate, and the height of described current potential terminal is highly identical with the lower edge of through hole.
Described base plate, current terminal, hold-down bolt and set nut are all to adopt insulating material to make.
Distance between described current potential terminal is at least 300mm, and the distance between the current terminal that described current potential terminal is adjacent is 50～100mm.
Beneficial effect
The utility model relates to a kind of resistivity measurement fixture of silver alloy wire rod, and is simple in structure, easy for installation, can test the resistivity of contact wire rod fast, saved the test duration.
Description of drawings
Fig. 1 is main TV structure figure of the present utility model.
Embodiment
, below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
as shown in Figure 1, embodiment of the present utility model relates to a kind of resistivity measurement fixture of silver alloy wire rod, comprise base plate 1, current terminal 3 and hold-down bolt 4, the upper end symmetria bilateralis of described base plate 1 is equipped with current terminal 3, the lower end double-screw bolt of described current terminal 3 passes base plate 1 and set nut 2, the intermediate lateral of described current terminal 3 has through hole 5, the upper end of described current terminal 3 vertically is equipped with hold-down bolt 4, the lower end of described hold-down bolt 4 communicates with through hole 5, two current potential terminals 6 are installed on the base plate 1 between described current terminal 3 relatively.
Described current potential terminal 6 is fixed on base plate 1 by screw 7, and the height of described current potential terminal 6 is highly identical with the lower edge of through hole 5.
Described base plate 1, current terminal 3, hold-down bolt 4 and set nut 2 are all to adopt insulating material to make.
Distance between described current potential terminal 6 is at least 300mm, and the distance between the current terminal 3 that described current potential terminal 6 is adjacent is 50～100mm.
Embodiment 1
The diameter A of the silver alloy wire rod that first need to measure with vernier caliper measurement is 0.12cm
2The silver alloy wire rod is passed from the through hole 5 of two current terminals 3, then turning hold-down bolt 4 makes it push down the silver alloy wire rod downwards, adjust the position between two current potential terminals 6, making the upper end of current potential terminal 6 all withstand the silver alloy wire rod, is at first first 6 Ω with the resistance R that multimeter is measured two silver alloy wire rods between current potential terminal 6, and it is 30cm that the distance between two current potential terminals 6 has L, can draw the electricalresistivityρ of silver alloy=2.4 * 10 according to formula ρ=RA/L
-8Ω m.
Claims (4)
1. the resistivity measurement fixture of a silver alloy wire rod, comprise base plate (1), current terminal (3) and hold-down bolt (4), it is characterized in that, the upper end symmetria bilateralis of described base plate (1) is equipped with current terminal (3), the lower end double-screw bolt of described current terminal (3) passes base plate (1) and set nut (2), the intermediate lateral of described current terminal (3) has through hole (5), the upper end of described current terminal (3) vertically is equipped with hold-down bolt (4), the lower end of described hold-down bolt (4) communicates with through hole (5), on base plate (1) between described current terminal (3), two current potential terminals (6) are installed relatively.
2. the resistivity measurement fixture of a kind of silver alloy wire rod according to claim 1, it is characterized in that: described current potential terminal (6) is fixed on base plate (1) by screw (7), and the height of described current potential terminal (6) is highly identical with the lower edge of through hole (5).
3. the resistivity measurement fixture of a kind of silver alloy wire rod according to claim 1 is characterized in that: described base plate (1), current terminal (3), hold-down bolt (4) and set nut (2) are all to adopt insulating material to make.
4. the resistivity measurement fixture of a kind of silver alloy wire rod according to claim 1, it is characterized in that: the distance between described current potential terminal (6) is at least 300mm, and the distance between the current terminal (3) that described current potential terminal (6) is adjacent is 50～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200718963U CN203299229U (en) | 2013-02-07 | 2013-02-07 | Resistivity measuring clamp for silver alloy wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200718963U CN203299229U (en) | 2013-02-07 | 2013-02-07 | Resistivity measuring clamp for silver alloy wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299229U true CN203299229U (en) | 2013-11-20 |
Family
ID=49575234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200718963U Expired - Fee Related CN203299229U (en) | 2013-02-07 | 2013-02-07 | Resistivity measuring clamp for silver alloy wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203299229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149389A (en) * | 2013-02-07 | 2013-06-12 | 宁波日中材料科技有限公司 | Resistivity measuring clamp for silver alloy wires |
| CN103926464A (en) * | 2014-04-25 | 2014-07-16 | 青岛大学 | Silver fiber resistance testing device |
| CN105137191A (en) * | 2015-09-08 | 2015-12-09 | 哈尔滨工业大学 | Measuring device and measuring method capable of preventing oxidation of permanent magnet material resistivity measurement area |
-
2013
- 2013-02-07 CN CN2013200718963U patent/CN203299229U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149389A (en) * | 2013-02-07 | 2013-06-12 | 宁波日中材料科技有限公司 | Resistivity measuring clamp for silver alloy wires |
| CN103149389B (en) * | 2013-02-07 | 2016-08-31 | 宁波日中材料科技有限公司 | A kind of resistivity measurement fixture of silver alloy wire rod |
| CN103926464A (en) * | 2014-04-25 | 2014-07-16 | 青岛大学 | Silver fiber resistance testing device |
| CN103926464B (en) * | 2014-04-25 | 2017-01-18 | 青岛大学 | Silver fiber resistance testing device |
| CN105137191A (en) * | 2015-09-08 | 2015-12-09 | 哈尔滨工业大学 | Measuring device and measuring method capable of preventing oxidation of permanent magnet material resistivity measurement area |
| CN105137191B (en) * | 2015-09-08 | 2018-04-17 | 哈尔滨工业大学 | Prevent the measuring device and measuring method of permanent-magnet material resistivity measurement zone oxidation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170207 |