Portable ninhydrin fingerprint fumigation-display box

Abstract

The invention provides a portable ninhydrin fingerprint fumigation box, which comprises an electric control box and a hollow cavity. An air heater, a humidifier and an air purification device are arranged in the electric control box. It is specially used to fumigate fingerprints on permeable objects, and is easy to carry to the criminal investigation scene. It can instantly extract fingerprints on the surface of permeable objects, greatly improving the efficiency of criminal investigation. The fumigation box: 1) small size, light weight, easy to carry. 2) It is equipped with a purification device, which can completely purify the toxic gases such as ninhydrin remaining in the fumigation process. 3) Electric heating water vapor is used to provide the humidity required by the environment, and the humidity increases faster, and the hot steam can be further used to heat the ambient air, shortening the heating and humidification time. 4) The air heater is made of high-temperature-resistant copper or its alloys, and the temperature is controlled by a program, which can quickly heat the ambient temperature to the target temperature, which solves the technical problem that the required ambient temperature cannot be reached due to no insulation measures in this field .

Description

technical field [0001] The invention relates to a fumigation and display box, in particular to a portable ninhydrin fingerprint fumigation and display box, which belongs to the field of electrical equipment. Background technique [0002] The fumigation box is a trace display device used in criminal investigation. It uses physical or chemical methods to fumigate under certain conditions through a closed space, so that the fingerprints on the surface of the object can be directly fumigated. and is extracted. [0003] Objects in criminal investigation are generally divided into permeable objects and non-permeable objects. Permeable objects generally refer to objects in which fingerprints such as paper, cloth, and walls can penetrate; non-permeable objects generally refer to vehicle handles, cup surfaces, door locks, etc. For objects with a smooth surface, different detection methods are required for different objects to achieve a good fingerprint fumigation effect. At present,...

AI Technical Summary

Problems solved by technology

However, this portable fingerprint fumigation box can only fumigate fingerprints on the surface of non-permeable objects, and there is no portable fumigation box specially for permeable objects.

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