Results 1 to 10 of about 101,231 (177)

Measurement of Water Holdup in Vertical Upward Oil-Water Two-Phase Flow Pipes Using a Helical Capacitance Sensor. [PDF]

open access: yesSensors (Basel), 2022
Oil–water two-phase flows widely exist in industrial production, especially in the petroleum industry. The liquid holdup is significant for understanding reservoir production characteristics and improving oil recovery.
Dai R, Jin N, Hao Q, Ren W, Zhai L.
europepmc   +2 more sources

A New Capacitance Sensor for Measuring the Void Fraction of Two-Phase Flow Through Tube Bundles. [PDF]

open access: yesSensors (Basel), 2020
Evaluating the two-phase flow parameters across tube bundles is crucial to the analysis of vibration excitation mechanisms. These parameters include the temporal and local variation of void fraction and phase redistribution. Understanding these two-phase
Ahmed W   +5 more
europepmc   +2 more sources

A Simplified Numerical Approach to Examine the Sensitivity of Two-Electrode Capacitance Sensor Orientation to Capture Different Gas-Liquid Flow Patterns in a Small Circular Pipe. [PDF]

open access: yesSensors (Basel), 2020
This work involved the simulation of both a multiphase gas–liquid flow and the electromagnetic field representing a two-electrode capacitance sensor in a circular pipe.
Al-Alweet FM   +4 more
europepmc   +2 more sources

Capacitance Characteristics of Glass-Embedded Interdigitated Capacitors for Touch Sensing Applications. [PDF]

open access: yesSensors (Basel)
This paper investigates the capacitance characteristics of a glass-embedded interdigitated capacitive sensor (IDCS) for touch-sensing applications. The study analyzes both baseline (no-touch) and touch-induced capacitance variations through a combination
Kaewcharoen A   +4 more
europepmc   +2 more sources

The Transformer Bridge Principle Circuit Using RF Admittance Technology

open access: yesSensors, 2023
To investigate the problem of the lag stability of the capacitance value during the level drop of the dirty U-shaped liquid level sensor, the equivalent circuit of the dirty U-shaped liquid level sensor was analyzed, and the transformer bridge’s ...
Fanfan Liu   +3 more
doaj   +1 more source

Capacitive CO2 Sensor [PDF]

open access: yesProceedings of Eurosensors 2017, Paris, France, 3–6 September 2017, 2017
The objective of the present paper is to provide a concept for a chemical sensor having a small size, a low power consumption and a high reliability for sensing CO2 under different humidity levels at atmospheric pressure, while maintaining a long term stability under working conditions.
Jamila Boudaden   +3 more
openaire   +2 more sources

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

ECT Sensor Simulation and Fuzzy Optimization Design Based on Multi Index Orthogonal Experiment

open access: yesIEEE Access, 2020
Electrical Capacitance Tomography (ECT) is a non-destructive visual measurement technology, which is mainly used in the detection of two-phase flow and multi-phase flow.
Zhe Ji   +3 more
doaj   +1 more source

Seed State-Detection Sensor for a Cotton Precision Dibble

open access: yesAgriculture, 2023
In Xinjiang, precision hole-sowing technology is used for cotton cultivation. A disc-type seed disperser has problems with missing seeds and multi-seeding; therefore, an interdigital (multiple pairs of coplanar electrodes crossed) capacitance sensor is ...
Ling Ren   +6 more
doaj   +1 more source

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