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A convenient connector for resistance measurement by four-lead method

A technology of resistance measurement and four-lead method, which is applied to the parts of electrical measuring instruments, measuring devices, measuring electrical variables, etc., can solve the problems of bulky, complex joint structure, difficult to measure the size of test objects, etc., and achieve large contact area , high measurement accuracy, and the effect of omitting the welding process

Active Publication Date: 2020-07-24
北京鼎臣世纪超导科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application of the above inventions and utility model patents in their respective fields can improve measurement efficiency and achieve excellent technical effects, but they can only be used for specific measurement objects
Moreover, the structures of these devices and joints are relatively complex, resulting in relatively large volumes, making it difficult to measure test objects with relatively small sizes.

Method used

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  • A convenient connector for resistance measurement by four-lead method
  • A convenient connector for resistance measurement by four-lead method
  • A convenient connector for resistance measurement by four-lead method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a convenient connector for four-lead resistance measurement, including a bracket 1 and four contacts 2; resistance measurement is to fix the test piece in the test platform for measurement.

[0032] The bracket 1 has an integrated structure including a platform connecting part and a contact pressing part; the platform connecting part is composed of two corresponding connecting plates 3, and the connecting plates 3 are respectively connected to the test platform by bolts; the contact pressing part includes a pressing plate 4 and two supporting plates 5, one end of the two supporting plates 5 is vertically connected with one end of the two connecting plates 3 respectively, and the two ends of the pressing plate 4 are respectively vertically connected with the ends of the two supporting plates 5 away from the connecting plate 3, and the pressing The tightening plate 4 is provided with four screw holes, and adjusting bolts 6 are respectively insta...

Embodiment 2

[0038] Such as figure 2 As shown, it is a convenient connector for four-lead resistance measurement. The resistance measurement is to fix the test piece 10 in the test platform 11 for measurement, including a bracket 1 and a contact.

[0039] The bracket 1 has an integrated structure including a platform connection part and a contact pressing part; the platform connecting part is composed of two corresponding connecting plates 3, and the connecting plates 3 are respectively connected to the test platform 11 by bolts; the contact pressing part includes a pressing part Tightening plate 4 and two supporting plates 5, one end of two supporting plates 5 is respectively connected with one end of two connecting plates 3, and the two ends of pressing plate 4 are respectively vertically connected with two supporting plates 5 away from one end of connecting plate 3, and pressing The tightening plate 4 is provided with a screw hole, and an adjusting bolt 6 is installed in the screw hole, ...

Embodiment 3

[0050] A convenient connector for four-lead resistance measurement. The resistance measurement is to fix the test piece in the test platform for measurement, including a bracket 1 and three contacts 2.

[0051] The bracket 1 has an integrated structure including a platform connecting part and a contact pressing part; the platform connecting part is composed of two corresponding connecting plates 3, and the connecting plates 3 are respectively connected to the test platform by bolts; the contact pressing part includes a pressing plate 4 and two supporting plates 5, one end of the two supporting plates 5 is respectively connected with one end of the two connecting plates 3, and the two ends of the pressing plate 4 are vertically connected with the ends of the two supporting plates 5 away from the connecting plate 3 respectively, and the compression The plate 4 is provided with a plurality of screw holes, and an adjusting bolt 6 is installed in the screw hole, and the bottom of th...

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Abstract

The invention discloses a convenient joint for four-probe method resistance measurement. In the resistance measurement process, a to-be-tested piece is fixed to a testing platform, and then measurement is performed through a measuring device. The joint comprises a support and a contact, the support is connected with a testing platform, the contact is connected with the test piece, and the supportenables the contact to be compressed on the test piece. The joint is simple in structure, accurate in measurement, capable of being flexibly designed as needed, applicable to different testing objectsand capable of being used for measuring the resistance of special-shaped test pieces and small test pieces; when the joint is connected with the test pieces, no welding is needed, and the high electrical connection stability is still achieved.

Description

technical field [0001] The invention relates to a device for measuring resistance, in particular to a convenient connector for resistance measurement by a four-lead method, and belongs to the technical field of resistance testing. Background technique [0002] The four-lead method is a high-precision measurement method for measuring electronic devices, especially small resistance electronic devices. When measuring the resistance value of the test piece by the four-lead method, it is necessary to fix two current leads and at least two voltage leads on the test piece. These leads, especially the voltage leads, need to be in good contact with the test piece to ensure the accuracy of the measurement, so usually Welding will be used. There are various forms of electronic devices, and some devices do not have reserved terminals for welding, and it is not convenient to solder directly. Therefore, when measuring with the four-lead method, it takes a long time for preliminary prepar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/04
CPCG01R1/0416
Inventor 王三胜
Owner 北京鼎臣世纪超导科技有限公司
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