Ultrasonic ranging has been widely used in automobiles, unmanned aerial vehicles (UAVs),
robots and other fields. With the appearance of micromachined ultrasonic transducers …

This paper describes the development and implementation of a robust high-accuracy
ultrasonic indoor positioning system (UIPS). The UIPS consists of several wireless ultrasonic …

Acoustic tomography is a technique widely used in nonintrusive temperature measurement.
The time of flight (TOF) of acoustic waves can be used to estimate the temperatures of a …

The water content in oil is closely related to the deterioration performance of an insulation
system, and accurate prediction of water content in oil is important for the stability and …

Small distributed robots have the potential to be commercialized in greenhouse operations
due to their low cost, high efficiency and light weight compared to conventional greenhouse …

Double-threshold method is a typical and simple time-of-flight (TOF) measurement method
for time-difference-based ultrasonic flowmeter. Some improvements have been proposed to …

This paper presents a high-accuracy complementary metal oxide semiconductor (CMOS)
driven ultrasonic ranging system based on air coupled aluminum nitride (AlN) based …

Turbine blades and nozzle guide vanes (NGVs) are operated at extreme temperatures in
order to maximise thermal efficiency and power output of an engine. In this paper the …

Determination of time-of-flight (TOF) is crucially important in liquid ultrasonic flow meters.
There are some deficiencies of previous TOF detection methods in practical applications …

The chemo-mechanics of lithium-sulfur (Li-S) batteries are unique in lithium-based batteries
because sulfur undergoes a solid-liquid-solid transition during each half-cycle. The …