Accuracy and Precision of Smartphones in Measurements of Illuminance and Liquid Turbidity
Year: 2020
Type: article
Abstract: Smartphones have demonstrated being attractive tools for illuminance and liquid turbidity measurements. The ambient light sensor and its corresponding mobile application can measure the reduction in illuminance with the distance away from a light source. The indirect measurement of turbidity is performed via the light passing through a solution. The illuminance linearly decreases with the increase in molar concentration of solution and a linear conversion equation to the turbidity can be obtained. By repeating the experiment, the uncertainty in direct measurements of illuminance is less than 1 %, ensuring an appropriate precision for educational and professional use.
Source: Revista cubana de física
Authors: N. Thongjan, Chitnarong Sirisathitkul
Institutions: Nakhon Si Thammarat Rajabhat University, Walailak University
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W3120631296