Building a Low-cost, Low-Power and Portable Spectrophotometer for Chemical Analysis

  • Dr. Sanjay D. Deshmukh, Rahul Pandya, Tarush Singh, Arpit Singh, Ashish Sharma


The primary focus of this paper is building a relatively low-cost Photospectrometer in comparison to general high-cost photo spectrometers available along with a generative idea on using tweak and how different components can be used in designing an effective device for chemical applications. This Photospectrometer shall be also using a power source of lower values. Using appropriate dimensions and components the accuracy of measurement can be significantly improved. Basic components include using an LED as a light source, a diffraction grating, cuvettes, a sensor, and a programmable device for output measurement. The building of this Photospectrometer can be performed easily at home and in projects and a key feature includes detachability of components for space optimization and component alteration if necessary. The two designs proposed in this paper give significant results which when applied on different solutions making it feasible to be used at lower level spectroscopy purposes.

Keywords- Low Cost; Low Power; Photospectrometer; Raman Spectroscopy; Spectroscopy.