Portable spectrometer based on intelligent mobile phone and spectrum detection method thereof

Abstract

The invention relates to a portable spectrometer based on an intelligent mobile phone and a spectrum detection method thereof. The portable spectrometer comprises the intelligent mobile phone and a spectrometer peripheral module which is assembled on the intelligent mobile phone camera. The spectrometer peripheral module comprises a conduction optical fiber used for collecting optical signals to be measured, an optical collimating system used for collimating and shaping the optical signals to be measured to obtain parallel light and an optical dispersion system used for performing dispersive beam splitting on the parallel light to form dispersion stripes of which the wavelength is arranged in turn. The intelligent mobile phone camera is used for photographing the dispersion stripes to obtain dispersion stripe images. The intelligent mobile phone camera is connected with a data processing module used for drawing a spectrum curve according to the color stripe images. The data processing module is connected with a display module. The intelligent mobile phone camera is used as to the detector of the spectrometer, and spectrum acquisition can be realized through combination of the spectrometer peripheral module with no requirement for independent power supply so that the system cost can be effectively reduced, the system volume can be reduced and use and carrying are convenient.

Description

technical field [0001] The invention belongs to the field of spectrum analysis, and in particular relates to a smart phone-based portable spectrometer and a spectrum detection method thereof. Background technique [0002] A spectrometer is an instrument for spectroscopic research and material spectral analysis. Through the measurement of the spectrum, it is a basic optical detection instrument to complete the analysis of optical components, the measurement of optical properties of materials and the identification of material components. Traditional spectrometers are usually only used in laboratory research due to their bulky size and high cost. In recent years, due to the development of biomedicine, science and technology agriculture, environmental testing, military analysis, and health monitoring, spectral analysis instruments are required to have the characteristics of light weight, miniaturization, and portability. Vantes and China Fuxiang Optics have started to develop...

AI Technical Summary

Problems solved by technology

The portable spectrometer based on the control of the upper computer needs to be connected to the computer, and the spectrum acquisition control, data processing and spectrum display are performed through the computer, which is complicated to use and inconvenient to carry; the spectrometer based on the lower computer control is embedded in the spectrometer. Control, calculation, display and other functions, such as the portable spectrometer proposed by Xu Zhe of Beijing University of Technology and others, (a portable spectrometer, CN201666817U, 2010.12.08) The spectrometer integrates a microprocessor, an optical system, a photodetector, and an ADC Analog-to-digital converters, liquid crystal displays, USB modules, etc. independently complete spectrum acquisition and spectrum display, but the system is relatively complex, resulting in an increase in the volume of the spectrometer system and an increase in cost. Moreover, this type of spectrometer usually requires a separate power supply. Or other work sites without power supply are inconvenient to use

Images