Depending on various applications, the process control industry uses liquid-level sensors of
different principles. Due to the dynamic nature of liquid such as water, wastewater …

In the method of monitoring the liquid level based on ultrasonic impedance, the near-field
effect can seriously affect the validity of the results. In this paper, we explore the factors …

Selecting and designing the optimum ultrasonic probe is vital for ultrasonic measurements
and experiments. The amplitude of the emitted ultrasonic wave excitation signal as well as …

Liquefied petroleum gas (LPG) is used as fuel for cooking, heating, and transportation
globally. This gas is highly inflammable, poisonous, explosive, and hazardous, and it …

There are several solutions to measure the tank level in industrial applications. However, the
environmental conditions inside this tank, such as turbulence and foam, can jeopardize …

This paper describes an image processing-based technique used to measure the volume of
residual water in the drinking water bottle for the laboratory mouse. This technique uses a …

This paper presents a system utilizing scandium-doped aluminum nitride (ScAlN)
piezoelectric micromachined ultrasonic transducers (PMUTs) for simultaneous detection of …

The ultrasonic Lamb wave detection principle can realize the noncontact measurement of
liquid level in closed containers. When designing an ultrasonic Lamb wave sensor, it is vital …

Techniques to measure liquid level in containers and vessels non-invasively are of great
interest for the manufacturing, chemical industries, and energy sectors. Most commercial …

A noncontact liquid-level sensor using a cylindrical coplanar waveguide (CCPW) is
proposed. The concept is demonstrated using a prototype device made by directly spraying …