The aim of this paper is to present a new technique for estimating the contamination by
moisture in power transformer insulating oil based on the spectral kurtosis analysis of the …

Measurements of the ultrasound propagation speed in engine oils as a function of
temperature in the range from 8 degC to 153 degC were performed. The data obtained are …

We have demonstrated the feasibility of non-destructively analyzing trace levels of water in
petroleum-based transmission and hydraulic oils and in a synthetic polyol ester engine …

The time of easy recoverable oil is fading away while at the same time the demand for
refined products is rising. To meet this demand, oil has to be recovered from fields, such as …

A verification study of ultrasound transmission numerical simulation results with experiment
results is presented in this paper. The work considers a model of a transformer tank which is …

For the evaluation of the condition of automotive engine oil, the oil's viscosity is an important
parameter. Using microacoustic viscosity sensors, an oil viscosity measurement can be …

This paper describes the use of pulsed photoacoustics to measure ppm concentrations of oil
in treated/separated water from subsea and downhole separators. The principle of operation …

Previous studies have yielded promising results as to the use of impedance measurements
in two phase flow metering in estimating the flow rate of individual flows in oil fields (ie water …

The importance of microwave techniques has been dedicated in several industrial
productions that were conducted with moisture quantifying measurements. In specific …

This work reports the experiments carried out with an adjustable measuring cell for
ultrasonic characterization of water-in-crude oil emulsions. The cell prototype was designed …