CN203324379U - Sample fixing device of DC resistance tester - Google Patents

Abstract

The utility model discloses a sample fixing device of a DC resistance tester. The sample fixing device of the DC resistance tester includes an insulation board, a pedestal, copper posts, copper blocks and a thin sheet testing table. A base body of the sample fixing device of the DC resistance tester consists of the insulation board and the pedestal. The insulation board is provided with an insulation fixing block and a slide rod. The slide rod is connected with an insulation limit block. Thin sheet testing table is arranged between the copper blocks. The copper block is connected with the upper copper post and the lower copper post. The sample fixing device of the DC resistance tester provided by the utility model has beneficial effects that specific resistance of a thin sheet sample can be measured accurately by using the sample fixing device of the DC resistance tester; specific resistance of an object with a comparatively greater thickness can also be measured after the thin sheet testing table is removed; specific resistance of the upper surface of a sample can be measured when the tester is connected with the upper cooper post while the specific resistance of the lower surface of the sample can be measured when the tester is connected with the lower cooper post; and the sample fixing device of the DC resistance tester is extremely convenient and quick in use and high in precision.

Description

A sample fixing device for a DC resistance tester

technical field

The utility model relates to a sample fixing device for a DC resistance tester. the

Background technique

Conductive cloth is used for professional shielding of high-radiation work such as electronics and electromagnetics. The uniform distribution of conductive sponge can protect device pins, and it is also corrosion-resistant. It is an ideal dielectric material for long-term storage of devices. Conductive cloth, conductive sponge, etc. need to measure the resistance before use. Due to the large thickness of the conductive sponge, when it is necessary to measure different surface resistances, the conventional test method is to flip the sample, and the detection efficiency is low; while the thickness of the conductive cloth is less than 1mm, it is difficult to measure accurately. Control, a lot of man-hours are wasted during measurement, and the measurement value is inaccurate. the

Utility model content

In view of the problems existing in the prior art above, the purpose of this utility model is to provide a sample fixing device for a DC resistance tester, which has solved the inconvenience caused by the measurement of different thicknesses of samples and the inaccurate resistance measurement value in the prior art. question. the

In order to achieve the above purpose, the utility model provides a sample fixing device for a DC resistance tester, including: an insulating plate, an insulating fixing block, a slide rod, an insulating limit block, an upper copper column, a lower copper column, a sheet test platform, and a copper block and a base, a sheet test bench is provided between the upper copper column and the lower copper column; the insulating plate and the base form the overall structure of the sample fixing device of the DC resistance tester; the insulating fixing block is connected with a slide bar, fixed on the insulating plate; the insulating limit block fixes the copper block on the insulating plate; a sheet test platform may be provided in the middle of the copper block, and an upper copper column and a lower copper column are provided on the copper block; The sheet test bench is made of copper. the

The beneficial effects of the utility model are: the copper block and the insulating plate are assembled into a sample fixing device of a DC resistance tester, when testing different surface resistances of thicker samples, such as conductive sponges, only need to put the product to be tested on the copper block Between, through the insulation limit block adjustment, clamp the sample to be tested, connect the positive pole and negative pole of the tester to the upper copper column to measure the upper surface resistance of the sample, and connect to the lower copper column to measure the lower surface resistance; when measuring thinner For products such as conductive cloth, you only need to place the product to be tested on the sheet test platform, connect the positive and negative electrodes of the tester to the copper column, and then measure its resistance value accurately and quickly. Using the sample fixing device of the direct current resistance tester of the utility model effectively solves the fixing problem during sample testing, and greatly improves the accuracy of resistance test data. the

Description of drawings

Fig. 1 is a schematic plan view of the sample fixing device of the utility model DC resistance tester. the

The marked names in each figure are: 1. Insulation board 2. Insulation fixing block 3. Slider 4. Insulation limit block 5. Upper copper column 6. Lower copper column 7. Sheet test bench 8. Copper block 9. Base. the

Detailed ways

In order to make the purpose of the utility model and the advantages of the technical solution clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and examples. the

Fig. 1 is a schematic plan view of the sample fixing device of the utility model DC resistance tester, including: an insulating plate, an insulating fixing block, a slide bar, an insulating limit block, an upper copper column, a lower copper column, a sheet test platform, a copper block and a base, A sheet test platform is provided between the upper copper column and the lower copper column; the insulating plate and the base constitute the overall structure of the sample fixing device of the DC resistance tester; the insulating fixing block is connected with a slide bar and fixed on the the insulating plate; the insulating limit block fixes the copper block on the insulating plate; a sheet test bench can be provided in the middle of the copper block, and an upper copper column and a lower copper column are provided on the copper block; the sheet The test bench is made of copper. the

In this example, when testing different surface resistance values of thicker samples, such as conductive sponges, you only need to place the product to be tested between the copper blocks, adjust the insulating limit block, clamp the sample to be tested, and place the tester's The positive and negative electrodes are respectively connected to the upper copper column to measure the upper surface resistance of the sample, and connected to the lower copper column to measure the lower surface resistance; when measuring thinner products, such as conductive cloth, only need to place the product to be tested on the sheet test bench, Connect the positive and negative electrodes of the tester to the copper column to measure its resistance value accurately and quickly. Using the sample fixing device of the direct current resistance tester of the utility model effectively solves the fixing problem during sample testing, and greatly improves the accuracy of resistance test data. the

The above are only preferred implementation examples of the present utility model, but the protection scope of the present utility model is not limited thereto. Any skilled person familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the utility model , should be covered within the protection scope of the present utility model, therefore, the protection scope of the present utility model should be based on the protection scope defined in the claims. the

Claims (5)

1. an instrument for measuring DC resistance sample fixing device, comprise: insulcrete (1), insulation fixed block (2), slide bar (3), insulation limited block (4), upper copper post (5), lower copper post (6), thin slice test board (7), copper billet (8) and base (9) is characterized in that: between described upper copper post (5) and lower copper post (6), be provided with thin slice test board (7).

2. a kind of instrument for measuring DC resistance sample fixing device according to claim 1, is characterized in that: the one-piece construction of described insulcrete (1) and described base (9) formation instrument for measuring DC resistance sample fixing device.

3. a kind of instrument for measuring DC resistance sample fixing device according to claim 1, it is characterized in that: described insulation fixed block (2) is connected with slide bar (3), is fixed on described insulcrete (1).

4. a kind of instrument for measuring DC resistance sample fixing device according to claim 1, it is characterized in that: described insulation limited block (4) is fixed on copper billet (8) on insulcrete (1).

5. a kind of instrument for measuring DC resistance sample fixing device according to claim 1, it is characterized in that: in the middle of described copper billet (8), can be provided with thin slice test board (7), described thin slice test board (7) is copper material, and described copper billet (8) is provided with copper post (5) and lower copper post (6).

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