Detecting pen for impedance tester

Abstract

The utility model discloses a probe pen for an impedance tester, which comprises a shell (1), an F link terminal (2), a test terminal connecting piece (3), a sleeve connecting piece (4), a sleeve (5) and a test rod (6), and relates to the field of material resistance test equipment, the inner hollow structure of the shell and the insulativity of the sleeve connecting piece are adopted, the sleeve connecting piece enables the two poles on the probe pen to be integrally designed, and the test rod (6) is connected with the test terminal connecting piece (3). A better insulation effect and more stable contacts of the two poles on the surface of the material are achieved, and the accuracy of the test resistance value is improved.

Description

Technical Field

[0001] This utility model relates to the field of material resistance testing equipment, specifically an impedance tester probe. Background Technology

[0002] An impedance tester is an instrument used to measure the impedance characteristics of electronic components, materials, or systems. It is widely used in fields such as electronic engineering, biomedicine, and materials science.

[0003] Electrodes used in impedance testers include weights and probes. Probe electrodes are mainly used to test slender or small-area materials. In the existing technology, probes are held by hand with two terminals connected to the ends of two conductive wires. This structure has problems such as poor insulation of the handheld part when testing the resistance of materials, and the instability of the contacts due to the two terminals being dropped during actual operation, which leads to deviations in the test results and affects the test accuracy. Summary of the Invention

[0004] (a) Technical problems to be solved.

[0005] To address the shortcomings of existing technologies, this invention provides a probe for an impedance tester, which solves the problems of resistance deviation and contact instability mentioned in the background section.

[0006] (ii) Technical solution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a probe for an impedance tester, comprising a housing, an F-connector terminal, and a test terminal connector. The housing is cylindrical, with one end shaped like a frustum and the other end cylindrical and internally threaded. One end of the F-connector terminal is snap-fitted into the test terminal, and the other end is externally threaded and threadedly fixed to the other end of the housing. The probe further comprises a sleeve connector, a sleeve, and a test rod. The sleeve connector is frustum shaped, with one end of its upper surface interference-fitted to one end of the housing. The sleeve has two points that interference-fit through-hole connections with the sleeve connector. The test rod has two points that are detachably plugged into one end of the sleeve.

[0008] Preferably, the other end of the test rod is attached with conductive rubber.

[0009] Preferably, the test rod is a telescopic spring column structure.

[0010] Preferably, the material of the housing and sleeve connector is an insulating material.

[0011] Preferably, the material of the housing and sleeve connector is plastic.

[0012] Preferably, two electrical wires are fixedly connected to the other end of the F-link terminal, and the electrical wires are respectively connected to the other end of the two sleeves.

[0013] (iii) Beneficial effects.

[0014] This utility model provides a probe for an impedance tester, which has the following advantages: 1. The hollow structure of the housing and the insulation of the sleeve connector provide better insulation, reduce the deviation of the test resistance value, and increase the accuracy of the test resistance value.

[0015] 2. The sleeve connector integrates the two poles on the probe, increasing convenience during testing. It also makes the contact between the two poles on the material surface more stable during testing, thus increasing the accuracy of the resistance value. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention.

[0017] Figure 2 This is a schematic diagram of the F-connector terminal of this utility model.

[0018] Figure 3 This is a schematic diagram of the sleeve connector of this utility model.

[0019] In the diagram: 1. Housing; 2. F-connector terminal; 3. Test terminal connector; 4. Sleeve connector; 5. Sleeve; 6. Test rod; 7. Conductive rubber. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1-3An impedance tester probe includes a housing, an F-connector terminal, and a test terminal connector. The housing is cylindrical, with one end shaped like a frustum and the other end cylindrical with internal threads. One end of the F-connector terminal is snap-fitted into the test terminal connector, and the other end has external threads that are threadedly fixed to the other end of the housing. The probe further includes a sleeve connector, a sleeve, and a test rod. The sleeve connector is frustum shaped, with one end of its upper surface interference-fitted to one end of the housing. The sleeve and sleeve connector are interference-fitted through-hole connected. One end of the test rod is detachably inserted into one end of the sleeve, and the other end of the test rod is attached with conductive rubber. The test rod is a retractable spring column structure. The housing and sleeve connector are made of plastic. Two electrical wires are fixedly connected to the other end of the F-connector terminal, and the electrical wires are respectively connected to the other ends of the two sleeves.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impedance tester probe, comprising a housing (1), an F-connector terminal (2), and a test terminal connector (3), wherein the housing (1) is cylindrical, one end is frustoconical, and the other end is cylindrical with internal threads; the F-connector terminal (2) is snap-fitted into the test terminal connector (3), and the other end is threaded to be fixedly connected to the other end of the housing (1) with external threads; characterized in that: The probe also includes a sleeve connector (4), a sleeve (5), and a test rod (6). The sleeve connector (4) is frustum-shaped, with one end of its upper bottom surface being interference-fitted to one end of the housing (1). The sleeve (5) has two parts that are interference-fitted through to the sleeve connector (4). The test rod (6) has two parts that are detachably plugged into one end of the sleeve (5).

2. The probe pin of claim 1, wherein: The other end of the test rod (6) is attached with conductive rubber (7).

3. The probe pin of claim 1 or 2, wherein: The test rod is a telescopic spring column structure.

4. The probe pin of claim 3, wherein: The shell (1) and the sleeve connector (4) are made of insulating materials.

5. The probe pin of claim 4, wherein: The shell (1) and the sleeve connector (4) are made of plastic.

6. The probe pin of claim 1 or 2 or 5, wherein: The other end of the F-connector terminal (2) is fixedly connected to two electrical wires, which are respectively connected to the other end of two sleeves (5).

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