Position indicator of material evidence examination platform

Abstract

The invention discloses a position indicator of a material evidence examination platform. Belonging to a trace identification and evidence obtaining instrument, the position indicator of the invention provides a solution to the problem that material evidence platforms of present evidence obtaining instruments only move horizontally so that the material evidence to be examined is difficult to obtain an optimum receiving spectrum. The position indicator comprises a hoisting device, a main platform and a loading platform that are connected in order. Wherein, the hoisting device is the lift control mechanism of the position indicator, the main platform is the horizontal movement control mechanism of the position indicator, and the loading platform is the rotation degree and angle inclination control mechanism of the position indicator. By controlling several motors placed in the above mechanisms, the material evidence platform for placing material evidence to be examined can move independently and simultaneously in horizon, height, rotation degree and angle inclination and other elements of three dimensional space. Also the movement center remains unchanged, so that the material evidence to be examined can obtain the light path, illumination direction and illumination angel required by an optimum receiving spectrum. Thus, an imaging monitor can have substantially improved imaging resolution and sharpness of examined traces. Besides, the efficiency, reliability and accuracy of evidence obtaining are also improved.

Description

technical field [0001] The invention relates to a device for locating a platform for placing physical evidence in an evidence collection instrument for identifying various traces, and belongs to the field of trace identification and evidence collection instruments. Background technique [0002] The forensics instrument is an important equipment for public security, procuratorate, law, department and other departments to carry out trace identification on physical evidence. The device can identify the time of handwriting; identify the authenticity of documents, coins, and securities; identify seals, alterations, additions and deletions of handwriting, and identify fingerprints, indentations, etc. Evidence collection in civil and other cases plays an important role. [0003] The forensics instrument produces different optical signals after being irradiated by the required light source according to the time sequence, severity and material of the traces on the seized evidence, a...

AI Technical Summary

Problems solved by technology

However, with the development of high technology in today's society, the material of the seized evidence and the traces to be obtained on the seized evidence have also changed greatly. It is difficult for the physical evidence platform to move horizontally to obtain the most perfect The best receiving spectrum affects the resolution and clarity of the imaging monitor's display for imaging traces, resulting in low efficiency and unreliable quality of evidence collection, which directly affects the quality of case handling by relevant departments

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