Construction of a low-cost laser-based multiplexed spectrometer: a potential probe for environmental pollution monitoring. (9th April 2012)

• Record Type: Journal Article
• Authors: Singh, Soumendra; Saha, Biswanath; Sinha, Sudarson Sekhar; Pal, Samir Kumar
• Is Part Of: International journal of environment and waste management. Volume 9:Number 3/4(2012)
• Page Start: 388
• Page End: 395
• Publication Date: 2012-04-09
• Subjects: laser -- optical instrument -- low-cost design -- environmental pollution measurement -- multiplexed spectrometer; Refuse and refuse disposal -- Environmental aspects -- Periodicals; Refuse collection -- Environmental aspects -- Periodicals; Recycling (Waste, etc.) -- Periodicals; 363.72805
• Languages: English
• ISSNs: 1478-9876

Abstract

A low-cost, sensitive, laser-based (Helium Neon; He-Ne) optical Fourier-transformed (multiplexed) spectrometer has been constructed for the quantification of suspended particulates in the air. The optomechanical features of the spectrometer are presented together with a theoretical framework of its operation. The apparatus is calibrated by using a standard commercial spectrophotometer and has been successfully used to detect smoke of various densities. The simplicity in the design of the apparatus and sensitivity in its measurement would expectedly attract high school and college students and definitely help to spread the awareness of environmental pollution among younger generation.