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Electrostatic field scanner

An electrostatic field and analog field technology, which is applied in the field of analog electrostatic field plotters, can solve problems such as low efficiency, and achieve the effects of eliminating different axis errors, high accuracy, and eliminating human errors.

Inactive Publication Date: 2011-05-11
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This method of manually finding points is very inefficient

Method used

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  • Electrostatic field scanner
  • Electrostatic field scanner
  • Electrostatic field scanner

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Embodiment

[0033] Utilize electrostatic field depicting instrument of the present invention and control method, gather data, power supply voltage gets 5 volts, utilize MATLAB language to draw a picture then, the equipotential diagram shown in Figure 4, the figure of electric force line as shown in Figure 5, etc. The overlay diagram of potential lines and electric force lines is shown in FIG. 6 , and the three-dimensional diagram of the embodiment is shown in FIG. 7 .

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Abstract

The invention provides an electrostatic field drawing apparatus and belongs to the school experimental teaching apparatus for simulating electrostatic fields. The invention comprises a data acquisition system, an A / D transition card and a computer. The data acquisition system is connected to the A / D transition card, and the A / D transition card is connected with the computer. The data acquisition system comprises a binding post (3) connected to a power supply, a simulated field (2) to be measured, an electrode (4), a drawing probe (5), a drawing handle (6), a switch (11) arranged on the drawing handle, an X-Y mechanism. The invention has the advantages that the disalignment error is eliminated; data points are identified automatically through the computerized acquisition system; potentialcan be read automatically; the data point acquisition efficiency is significantly improved. Electrostatic field distribution diagram can be drawn quickly according to the acquired data; two-dimensional electric field isolines and power lines can be drawn; three-dimensional distribution diagram of electric field can be drawn. Data can be observed and analyzed in multiple viewing angles by draggingthe mouse.

Description

technical field [0001] The invention belongs to a simulated electrostatic field drawing instrument, in particular to an electrostatic field drawing instrument used in school physics experiment teaching. Background technique [0002] At present, there are several structures of electrostatic field tracers used in school physics experiment teaching, (a) according to different conductive media, they can be divided into: conductive paper electrostatic field tracer, conductive glass electrostatic field tracer and electrolyte electrostatic field tracer; (b) ) According to different structures, it can be divided into two types: double-layer tracer and single-layer tracer. [0003] These electrostatic field tracers have the following disadvantages: [0004] (a) Non-axis error of the electrostatic field of the double-layer structure [0005] This defect mainly exists for the double-layer electrostatic field tracer. When the probes on the upper and lower layers are not on the same a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/18G06T11/00
Inventor 胡广兴唐嘉鸣杜安刘国良刘勃然郭秀华白质明何砚发
Owner NORTHEASTERN UNIV LIAONING
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