Measurement of Water Holdup in Vertical Upward Oil–Water Two-Phase Flow Pipes Using a Helical Capacitance Sensor [PDF]
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.
Runsong Dai +4 more
doaj +2 more sources
A New Capacitance Sensor for Measuring the Void Fraction of Two-Phase Flow Through Tube Bundles [PDF]
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
Wael Ahmed +5 more
doaj +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]
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.
Fayez M. Al-Alweet +4 more
doaj +2 more sources
Design and Characteristic Analysis of Cross-Capacitance Fuel-Level Sensor
A cross-capacitance liquid level sensor is based on the principle of cross capacitance. This study designed a new single-tube cross-capacitance fuel-level sensor.
Jing Yu, Hang Yu, Dongsheng Li
doaj +3 more sources
The Transformer Bridge Principle Circuit Using RF Admittance Technology
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
Non-Contact Adaptive Voltage Sensor Based on Electric Field Coupling Principle
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
A Capacitive Flexible Tactile Sensor [PDF]
In this paper, a capacitive flexible tactile sensor was designed to measure the pressure of objects based on MEMS technology. This sensor is a structure of a 4x4 array, with metal Ag as the capacitive electrode, which forms the tactile sensing unit of the sensor.
Dandan Yuan +4 more
openaire +2 more sources
ECT Sensor Simulation and Fuzzy Optimization Design Based on Multi Index Orthogonal Experiment
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
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
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

