Electromagnetic Coupling Analysis on Coaxial Cable of Aircraft Fuel Measurement System

2018 ◽  
Author(s):  
Zhikang Li ◽  
Zongxia Jiao ◽  
Mei Yuan
Keyword(s):  
Measurement System ◽  
Electromagnetic Coupling ◽  
Coaxial Cable ◽  
Coupling Analysis ◽  
Aircraft Fuel ◽  
Fuel Measurement

scholarly journals Design of fuel measurement system for LNG powered VLCC

2017 ◽  
Vol 231 ◽  
pp. 012105
Author(s):  
Xiao-Rong Zhang ◽  
Shu-Jie Han ◽  
Bo-Yang Li
Keyword(s):  
Measurement System ◽  
Fuel Measurement

Investigating cable effects in spectral induced polarization imaging at the field scale using multicore and coaxial cables

Geophysics ◽  
2020 ◽  
pp. 1-49
Author(s):  
Adrian Flores Orozco ◽  
Lukas Aigner ◽  
Jakob Gallistl
Keyword(s):  
Signal To Noise Ratio ◽  
Electromagnetic Coupling ◽  
Induced Polarization ◽  
Coaxial Cable ◽  
Imaging Method ◽  
Data Sets ◽  
Phase Lag ◽  
Imaging Data ◽  
Measuring Device ◽  
Spectral Induced Polarization

The Spectral Induced Polarization (SIP) method has emerged as a well-suited laboratory technique to characterize hydrogeological and biogeochemical parameters in soil samples. However, field applications of the SIP imaging method are still rare, which can be attributed to the particular care required to minimize the contamination of the data by electromagnetic coupling. To date, field procedures rely on the use of two different cables separating the current and potential dipoles to improve the quality of the SIP readings, although this increases the efforts in the field and might reduce the depth of investigation or the spatial resolution of the data. To overcome these limitations, we investigate here the use of a single coaxial cable, as an alternative to improve data quality and simplify field procedures. We present a thoughtful evaluation of SIP imaging data collected with the same measuring device using a coaxial cable and a combination of multicore cables of different length and manufacturers. Data sets collected with a single coaxial cable reveal a significantly lower number of outliers and high spatial consistency between the phase-lag readings, even for measurements collected with a coaxial cable five times longer than the length of the profile. Furthermore, the data collected with coaxial cables reveal an improved quality for deeper measurements (with lower signal-to-noise ratio) in comparison to data sets collected with separated cables. Our results demonstrate that the use of coaxial cables might permit the collection of SIP readings with high quality and similar field procedures to those used in resistivity surveys.

Stability of coaxial cable transmission and measurement system using optical fiber link technologies

2016 ◽  
Vol 59 (1) ◽  
pp. 201-204
Author(s):  
Yuanfeng She ◽  
Michitaka Ameya ◽  
Masanobu Hirose ◽  
Satoru Kurokawa ◽  
Jiro Hirokawa ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Measurement System ◽  
Coaxial Cable ◽  
Fiber Link

Aircraft Fuel Volume Characteristic Calculations and Multi-Sensor Technology on Fuel Volume Measurement Simulation

2015 ◽  
Vol 799-800 ◽  
pp. 927-931
Author(s):  
Gong Li Tan ◽  
Chun Ling Zhu ◽  
Ping Shen ◽  
Wei Ping Sun ◽  
Chuan Wu
Keyword(s):  
Degrees Of Freedom ◽  
Volume Measurement ◽  
Simulation Software ◽  
Fuel Tank ◽  
Sensor Technology ◽  
Secondary Development ◽  
Fuel Surface ◽  
Attitude Angle ◽  
Aircraft Fuel ◽  
Fuel Measurement

Owing to the reasons of aircraft attitude error and fuel surface sloshing, the current measurement methods which use the height value of fuel sensor, flight attitude angle and aircraft acceleration information to determine the position of the fuel surface and calculate the fuel volume are inaccurate. This paper applies CATIA secondary development to automatically establish the volume characteristic database which includes various fuel surface angles and height of fuel sensors; A plurality of fuel sensors are arranged reasonably in the fuel tank to ensure that there are at least three sensors immersed in the fuel in each attitude angle, then the fuel surface is determined directly by the measured height of several fuel sensors, and fuel surface parameters are put into a simulation software as input parameters which are designed to measure the fuel volume and calculate the fuel volume in the fuel tank by interpolating. Besides, rotation test platform is designed for aircraft fuel tank with two degrees of freedom to simulate aircraft fuel measurement process. The experimental data can verify the accuracy of multi-sensor fuel measurement system.

Digital Fuel-Measurement System

1982 ◽  
Author(s):  
Yogesh K. Doshi ◽  
William H. Haverdink
Keyword(s):  
Measurement System ◽  
Fuel Measurement
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