Results 11 to 20 of about 54,628 (307)

Measurement of Gas-Liquid Two-Phase Flow in Micro-Pipes by a Capacitance Sensor

open access: yesSensors, 2014
A capacitance measurement system is developed for the measurement of gas-liquid two-phase flow in glass micro-pipes with inner diameters of 3.96, 2.65 and 1.56 mm, respectively. As a typical flow regime in a micro-pipe two-phase flow system, slug flow is
Haifeng Ji   +4 more
doaj   +2 more sources

Design of capacitance measurement module for determining critical cold temperature of tea leaves

open access: yesSensing and Bio-Sensing Research, 2016
Critical cold temperature is one of the most crucial control factors for crop frost protection. Tea leaf's capacitance has a significant response to cold injury and appears as a peak response to a typical low temperature which is the critical temperature.
Yongzong Lu   +4 more
doaj   +2 more sources

Completely automated system for capacitance measurement through new accurate capacitance box [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2017
Capacitance boxes (CBs) are extensively used in electrical laboratories for calibration of capacitance measurement devices. In this paper, a new recently fabricated CB has been presented to be used for automatic calibrations through its 4096 output ...
Raouf M. Helmy A.
doaj   +2 more sources

Capacitance-Based Biosensor for the Measurement of Total Loss of L‑Amino Acids in Human Serum during Hemodialysis

open access: yes, 2022
In this paper, we present a biosensor based on a gold nanoparticle (AuNP)-modified Pt electrode with an adjusted membrane containing cross-linked L-amino acid oxidase for the detection and quantification of total L-amino acids. The designed biosensor was
Marius Dagys (12370929)   +5 more
core   +1 more source

Implementation of a Controller for a Space-Grade, Piezo-Actuated Fabry-Perot Interferometer

open access: yesIEEE Access, 2022
A tunable Fabry-Perot interferometer (FPI) can be used as an optical band-pass filter. This type of filter is used in spectrometers and spectral imagers. The transmitted wavelength depends on the optical cavity adjusted by an electronic controller.
Christer Holmlund, Roberts Trops
doaj   +1 more source

Capacitance-Tuning Guides the Electric Antifouling Membrane Design

open access: yes, 2023
In recent years, conductive membranes have attracted significant attention and have been extensively studied for their unique antifouling mechanisms and regenerative properties.
Yang Si (1530220)   +5 more
core   +1 more source

Parasitic Effects on Electrical Bioimpedance Systems: Critical Review

open access: yesSensors, 2022
Parasitic capacitance represents the main error source in measurement systems based on electrical impedance spectroscopy. The capacitive nature of electrodes’ impedance in tetrapolar configuration can give origin to phase errors when electrodes are ...
David William Cordeiro Marcôndes   +2 more
doaj   +1 more source

Elegant procedure to estimate series capacitance of a uniform transformer winding from its measured FRA: implementable on existing FRA instruments

open access: yesHigh Voltage, 2020
A simple procedure to estimate series capacitance of a uniform transformer winding from its measured frequency response analysis (FRA) and shunt capacitance is presented. Unlike previously published approaches, this method does not involve any cumbersome
Ashiq Muhammed   +3 more
doaj   +1 more source

Non-Contact Adaptive Voltage Sensor Based on Electric Field Coupling Principle

open access: yesSensors, 2023
Non-contact voltage sensors based on the principle of electric field coupling have the advantages of simple loading and unloading, high construction safety, and the fact that they are not affected by line insulation.
Xiangyu Tan   +5 more
doaj   +1 more source

Compatible measurements of volumetric soil water content using a neutron probe and Diviner 2000 after field calibration. [PDF]

open access: yes, 2006
Field calibrations for a neutron probe and a capacitance sensor (Diviner 2000) for measuring the soil water content of a shrinking–swelling clay soil were substantially different from commonly used default values. Using our field calibrations, the two
Reinhard, Berend Richard   +2 more
core   +1 more source

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