In this study, we demonstrate fabrication of an evanescent wave fiber optic humidity sensor based on PEG-PMMA microsphere film as moisture-sensitive material. A three dimensional stacking structure of ...

For the first time, 106 students (from Class 9 to 12) from the SUMAN schools participated in the competition, while 117 ...

An ultra-sensitive optical fiber humidity sensor based on an extrinsic Fabry-Perot interferometer is proposed and experimentally demonstrated in this paper. The Fabry-Perot cavity is constructed by a ...

Simple, sensitive, and cost-effective detection of Ag+ is important for environmental safety. A dual-color fluorescence sensor based on fluorescence resonance energy transfer (FRET) and cytosine ...

Circuit and Working Fig. 2 shows the circuit diagram of the humidifier. The system is built around an Arduino Uno (MOD1), a 5V SPDT relay module, a humidity sensor (DHT22), an ultrasonic humidifier, ...

Acceptable indoor air quality is a concern for the comfort and health of humans, in which the 40–70% of relative humidity (RH) is comfortable for the human body and the existence of volatile organic ...