Abstract: High-resolution monitoring of liquid levels over a wide range has always been a great challenge. In this article, a fiber ring laser (FRL) sensor system with Fabry-Perot interferometer (FPI) ...

An in-line reflective dual-parameters fiber-optic sensor is proposed in this work, whereas it is experimentally verified by measuring both the liquid level and the local temperature distribution ...

Liquid level sensor, also called fluid sensor or float switch, usually has two parts: a stem and a float. The stem is stationary and attaches to the top or bottom of a tank. One or more reed switches ...