Low-temperature electrical resistivity measuring apparatus and installation method thereof

A technology of resistivity and testing device, applied in the direction of material resistance, etc., can solve the problems of complicated operation and high cost, and achieve the effect of ensuring integrity, preventing probe movement, and easy and convenient installation and fixation.

Pending Publication Date: 2018-08-03
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional low-temperature resistivity measurement equipment uses silver glue, gold glue or welding in electrode production. Such electrode methods are still insufficient in the ability to control glue spots and preserve the integrity of samples, and this The low-temperature resistivity measurement device is expensive and complicated to operate

Method used

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  • Low-temperature electrical resistivity measuring apparatus and installation method thereof
  • Low-temperature electrical resistivity measuring apparatus and installation method thereof
  • Low-temperature electrical resistivity measuring apparatus and installation method thereof

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Embodiment Construction

[0030] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0031] Combine below Figure 1-Figure 3 The low-temperature resistivity measuring device provided by the present invention will be described in detail. For the convenience of description, the "up" and "down" referred to below are consistent with the "up" and "down" directions of the drawings themselves, but do not limit the structure of the present invention. For example, the device can be mounted laterally on the cold head of a refrigerator.

[0032] The low-temperature resistivity testing device provided in this embodiment includes a heat sink 2, an insulating pressure ring 3, an insulating frame 4, a probe 5, a sapphire 6, a positioning pressing plate 8, a reinforcing pressing plate 9, a heater 10, a te...

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Abstract

The invention discloses a low-temperature electrical resistivity test apparatus which is connected with an external cold source and used for measuring the electrical resistivity of a sample to be tested at a low temperature. The low-temperature electrical resistivity measuring apparatus is characterized by comprising a heat sink, a sample frame, at least two probes, an insulation frame, a positioning pressure plate, an insulation pressing ring, a fixed bolt and a reinforcing pressure plate. The invention also discloses a test method of the low-temperature electrical resistivity measuring apparatus. By adopting the low-temperature electrical resistivity measuring apparatus, an electrode can be accurately positioned, the accuracy for measuring the electrical resistivity can be effectively ensured, the sample to be tested can be reliably fixed, the completeness can be ensured, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of low temperature measurement, and in particular relates to a low temperature resistivity measurement device and an installation method thereof. Background technique [0002] In the study of superconductivity and the study of the electromigration properties of metals and their compounds, it is necessary to accurately know the resistivity of these materials at low temperatures. Chinese patent application CN101021502A discloses a low-temperature resistance temperature coefficient measuring device, which consists of three parts: a constant temperature part, a temperature measurement and control part, and a resistance measurement part. Its constant temperature part is composed of cold source, heater, seal, constant temperature chamber, insulation layer and other parts. It uses resistance combined with digital instruments to measure and control temperature, and uses double-arm bridge delivery potentiometer meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/14
CPCG01N27/14
Inventor 代飞林伟王凯黎军雷海乐漆小波刘元琼梅鲁生
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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