Harvesting energy from the working environment of vehicles is important for wirelessly
monitoring their operation conditions and safety. This review aims at reporting different …

The liquid level in a tank should be measured for most applications. In this paper, a new
capacitive method is presented to detect the liquid level. Existing methods are generally …

An intensity-based fiber-optic liquid-level gauge for continuous measurement is described.
The sensing principle is based on the total internal reflection of light within the fiber optic …

In this paper, an attempt has been made to design a low-cost noncontact capacitance-type
level sensor for a conducting liquid. The sensor is in the form of a uniform circular cylinder …

The conventional capacitance-type liquid level sensor consists of an insulated solid metallic
rod electrode immersed in the liquid contained in a metallic storage tank, or two such …

A system for measuring liquid level in multiple tanks using optical fiber technology has been
developed. Oil field service industry or any sector requiring liquid level measurements in …

A novel self-referencing fiber optic intensity sensor based on bending losses of a partially
polished polymer optical fiber (POF) coupler is presented. The coupling ratio (K) depends on …

The paper deals with a sensor for temperature measurements in fluids. The sensor is based
on a fiber-optic sensing element and on microcontroller-based signal processing hardware …

A new, linear, nonintrusive, and cost-effective inductive liquid level sensor is designed and
developed. The sensor consists of a simple coil that floats on the liquid surface. A couple of …

A liquid level sensor based on etched D-shaped silica optical fibers is presented. The optical
transmission of the sensor depends on the liquid level. The sensor can be realized as a …