Portable spectrometer data collecting, processing and displaying system

Abstract

Disclosed is a portable spectrometer data collecting, processing and displaying system. The portable spectrometer data collecting, processing and displaying system comprises a CPLD (complex programmable logic device) timing driving circuit, a CMOS (complementary metal oxide semiconductor) photoelectric detection array and reading circuit, a front end amplification circuit, an AD (analog to digital) conversion circuit, a main control unit and a memorizer, wherein the CPLD timing driving circuit generates a drive pulse signal, a clock pulse signal and an address signal, the CMOS photoelectric detection array and reading circuit detects a light beam to be measured under control of the clock pulse signal, converts a detected light signal into an electric signal, and outputs the electric signal to the front end amplification circuit, the front end amplification circuit performs front end processing on the electric signal, and then transmits the electric signal after being processed to the AD conversion circuit, the AD conversion circuit converts the electric signal after being processed by the front end amplification circuit and received from the front end amplification circuit into a digital signal in AD conversion mode under the control of the clock pulse signal, and then transmits the digital signal to the main control unit, the main control unit sends a memory control instruction to the memorizer according to the drive pulse signal, the clock pulse signal and the address signal, received from the CPLD timing driving circuit, and the memorizer receives address signals from the CPLD timing driving circuit, and stores the digital signal under timing control of the memory control instruction of the main control unit.

Description

technical field [0001] The invention relates to the field of spectral data detection, in particular to a portable spectrometer data collection, processing and display system. Background technique [0002] Spectroscopic instruments are an important part of optical instruments. It is a basic equipment for measuring, analyzing and processing the structure and composition of substances by applying optical principles. It is widely used in chemical analysis, agricultural production, environmental monitoring, clinical testing, industrial testing, aerospace remote sensing and other fields. Micro-spectrometers generally use gratings to split the light. [0003] The circuit part of the spectrometer mainly includes a linear array CCD (charge-coupled device) detector and peripheral circuits, and also includes a micro-spectrometer data acquisition module, such as A / D conversion and interface design. When working, the light beam enters the micro-spectrometer through the slit, and conver...

AI Technical Summary

Problems solved by technology

[0004] However, traditional spectrometers have shortcomings such as large volume, complex structure, limited use environment, and high price, which cannot meet the requirements of on-site detection and real-time monitoring

Images