Integrated circuit chip for detecting air quality by using laser sensor

Abstract

The invention discloses an integrated circuit chip for detecting the air quality by using a laser sensor, and belongs to the technical field of laser sensors. The chip comprises a control circuit module, a protection circuit module, a photoelectric interface module, a conversion amplification circuit module, an operational circuit module, an A / D conversion circuit module and a parameter storage module. The control circuit module is connected with a starting circuit module, the photoelectric interface module, the conversion and amplification circuit module, the operational circuit module, the A / D conversion circuit module and the parameter storage module. The protection circuit module is connected with the control circuit module and the photoelectric interface module. The photoelectric interface module, the conversion amplification circuit module and the operational circuit module are connected in sequence, and the parameter storage module is connected with the operational circuit module. According to the invention, the problems of low circuit response speed, fixed and non-adjustable internal program and single application scene caused by the fact that a single chip microcomputer isintegrated in a PM2.5 laser sensor to process data and control external driving and display are solved.

Description

technical field [0001] The invention relates to an integrated circuit chip using a laser sensor to detect air quality, belonging to the technical field of laser sensors. Background technique [0002] Laser sensor technology is classified according to the working substance, which can be divided into 4 types: [0003] 1. Solid-state laser: the working substance is solid. Commonly used are ruby ​​lasers, neodymium-doped yttrium aluminum garnet lasers (YAG lasers) and neodymium glass lasers. Their structures are roughly the same, and they are characterized by being small and strong and high in power. Neodymium glass lasers are devices with the highest pulse output power, which has reached tens of megawatts. [0004] 2. Gas laser: the working substance is gas. There are various gas atom, ion, metal vapor, and gas molecular lasers. Commonly used carbon dioxide lasers, helium-neon lasers and carbon monoxide lasers are shaped like ordinary discharge tubes and are characterized b...

AI Technical Summary

Problems solved by technology

[0008] There are still problems in the current PM2.5 laser sensor technology: the PM2.5 laser sensor integrates a single-chip microcomputer to process data and control the external drive and display

The disadvantages of this are that the response speed of the circuit is slow; the internal program is fixed and cannot be adjusted, and the application scenario is single; the high cost is not conducive to mass popularization

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