Insulation inspection tooling for polyimide film on the bracket of solar sail panel driving device of spacecraft

Abstract

The invention discloses a polyimide film insulation inspection tool on the bracket of a solar sail board driving device of a spacecraft, which comprises a measuring ring, an electric rubber ring, a handle and a positioning device for pressing on the polyimide film And the test lead holder, the electric rubber ring is pasted on one side of the measuring ring to press the polyimide film, and the other side of the measuring ring is provided with a handle formed by the integration of the central parts of the three grab bars. The three grab bars are respectively The mechanical fixed connection is on the measuring ring, and any position of the measuring ring is provided with a test lead holder for inserting one of the digital multimeter test leads. The measuring tool is in parallel relationship with the SADA contact insulating film during measurement, and the measuring tool directly acts on the SADA contact insulating film, avoiding the possibility of relative displacement between the insulating film and the SADA bracket, and can fully cover the SADA insulation at one time It is not necessary to measure the insulating film more than 20 times, which improves the inspection efficiency of the SADA insulating film.

Description

technical field [0001] The invention belongs to a measurement tool in the general assembly process of a spacecraft, and in particular relates to an insulation measurement tool for a solar array drive assembly (SADA, solar array drive assembly) support on a spacecraft. Background technique [0002] In order to realize the floating requirements of SADA and avoid the contact and conduction between SADA and SADA bracket mounting surface, polyimide insulating film is pasted on SADA bracket to realize the isolation between SADA and bracket. Usually, 100m polyimide film is used as the production material, and the cut insulating film cannot have cracks and gaps. Generally, the structure of the polyimide film on the SADA scaffold is as follows figure 1 As shown, the polyimide membrane on the circumference of the SADA stent has 11 holes, of which 7 holes are set every 30 degrees on the lower half circle, and 4 holes are symmetrically set on the upper half circle, and the two holes be...

AI Technical Summary

Problems solved by technology

[0004] 1) Since the installation of SADA is in surface contact, the method of point selection measurement cannot be used to inspect the entire installation surface, which has the characteristics of poor coverage and cannot guarantee the installation quality of the SADA insulating film. Since the SADA floating resistance has strict requirements, if this If the insulation effect does not meet the requirements, it will directly cause the floating resistance value of the subsequent SADA installation to fail to meet the requirements, resulting in the risk of repeated disassembly and assembly of the SADA;

[0005] 2) When measuring, use the multimeter pen to directly contact the insulating film for measurement. The metal pen will easily damage the insulating film during more than 20 repeated measurements, thus increasing the risk of subsequent SADA installation work;

[0006] 3) There is a force between the test pen of the multimeter and the insulating film. The measurement angle and force of the test pen during the measurement process cannot be quantitatively controlled, which may cause relative displacement between the insulating film and the SADA bracket, resulting in repeated disassembly and assembly of the insulating film. risks of;

[0007] 4) The inspectors need to measure the insulating film more than 20 times, and the repetitive measurement work is time-consuming and increases the risk of operation

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