3D experiment instrument for electrostatic field

Abstract

An electrostatic 3-D experimental device includes a test device, an analog electrode device, a probe and a frame, among which, the test device expresses the test point positions with cylindrical coordinate (theta, y , z), including a thetha converting unit, y-direction moving unit and z-direction moving unit. This invention is simply operated and describes the geometry of field distribution very clearly, the tested point coordinates and potential can be read out directly on the screen.

Description

technical field [0001] The invention relates to an experimental instrument for simulating and measuring the electrostatic field distribution around a charged object. Background technique [0002] The traditional electrostatic field tester uses a steady current field or a quasi-steady current field to simulate the electrostatic field, and generally simulates the electric field distribution of a long coaxial cylindrical cable. The experiment can only measure the two-dimensional plane distribution of the electrostatic field, although according to Gauss's theorem, it can be known that in any section S perpendicular to the axis, there are uniformly distributed radial electric force lines. However, it is impossible to obtain data from the experiment to verify the correctness of the above conclusions, which directly affects the experimenter's intuitive understanding of the spatial distribution of the electrostatic field, and cannot highlight the physical model of the electrostatic ...

AI Technical Summary

Problems solved by technology

However, it is impossible to obtain data from the experiment to verify the correctness of the above conclusions, which directly affects the experimenter's intuitive understanding of the spatial distribution of the electrostatic field, and cannot highlight the physical model of the electrostatic field distribution, which is not conducive to students' understanding

In addition, the traditional electrostatic field tester needs to draw the probe on the conductive paper or conductive glass during the experiment. The conductive paper is easy to be scratched, and the resistance distribution of the conductive paper and the conductive glass is uneven, which often leads to the failure of the physical model during the experiment. The performance is not clear enough, and even some data cannot be measured using traditional electrostatic field experiment instruments

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