Journal ArticleDOI
Study of a Modified Capacitance-Type Level Transducer for Any Type of Liquid
TLDR
A modified capacitance-type liquid level sensor is presented in which effect of self-inductance of the metallic rod has been eliminated and the theoretical equations describing the operation of the sensor are derived.Abstract:
The conventional capacitance-type liquid level sensor consists of an insulated solid metallic rod electrode immersed in the liquid contained in a metallic storage tank, or two such identical electrodes in a nonmetallic storage tank. Such metallic rods may suffer from the self-inductance effect which varies nonlinearly with the level. In this paper, we present a modified capacitance-type level sensor in which effect of self-inductance of the metallic rod has been eliminated. The theoretical equations describing the operation of the sensor are derived. The sensor is designed and tested experimentally and is found to follow the theoretical equations. The experimental results are also presented. A very good linearity of the sensor is observed.read more
Citations
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Journal ArticleDOI
Digital light processing 3D printing of conductive complex structures
Quanyi Mu,Quanyi Mu,Lei Wang,Conner K. Dunn,Xiao Kuang,Feng Duan,Zhong Zhang,H. Jerry Qi,Tiejun Wang +8 more
TL;DR: In this paper, a digital light processing (DLP®) based 3D printing technique was explored to manufacture electrically conductive objects of polymer nanocomposites, where the ink was made of a mixture of photocurable resin with multi-walled carbon nanotubes (MWCNTs).
Journal ArticleDOI
Water level sensing: State of the art review and performance evaluation of a low-cost measurement system
TL;DR: In this paper, a review of prior art on liquid level sensing is initially presented, and the operational characteristics and performance of a novel capacitive-type water level measurement system are investigated through simulations and experimental tests conducted in two water storage tanks of a city-scale water distribution network.
Journal ArticleDOI
Review of high sensitivity fibre-optic pressure sensors for low pressure sensing
TL;DR: In this article, a review of pressure sensitivity enhancement methods that could be divided into two groups, namely intrinsic and extrinsic, is presented, for low hydrostatic pressure measurement.
Journal ArticleDOI
A Review on Capacitive-Type Sensor for Measurement of Height of Liquid Level
TL;DR: A capacitive sensor converts a change in position, or properties of dielectric material into an electrical signal as discussed by the authors, which is used in a variety of industrial and automotive application.
Journal ArticleDOI
Towards self-powered sensing using nanogenerators for automotive systems
TL;DR: In this article, the potential of nanogenerators for developing new self-powered sensors for automotive applications, which in the near future, will be an indispensable part of the active safety systems in production cars, is also discussed.
References
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Journal ArticleDOI
Dielectric spectroscopy and conductivity of polyelectrolyte solutions
TL;DR: The dielectric and conductometric properties of aqueous polyelectrolyte solutions have been analyzed in detail in the light of scaling theories for polyelectron conformation and summarize the state-of-the-art in this field.
Journal ArticleDOI
Highly Sensitive Liquid-Level Sensor Based on Etched Fiber Bragg Grating
Binfeng Yun,Na Chen,Yiping Cui +2 more
TL;DR: In this paper, a highly sensitive liquid-level sensor based on etched fiber Bragg grating (FBG) is proposed and demonstrated, where the transmission dips of FBG spectra are affected by the fraction of the length of the etched FBG that is surrounded by the liquid.
Journal ArticleDOI
A Novel Level Measurement Technique Using Three Capacitive Sensors for Liquids
TL;DR: A new capacitive method is presented, based on the measurements of capacitances of three parallel plate capacitive structures, which are designated as level, reference, and air sensors, which gives the accurate reading of the liquid level in the tank.
Journal ArticleDOI
A low-cost noncontact capacitance-type level transducer for a conducting liquid
TL;DR: An attempt has been made to design a low-cost noncontact capacitance-type level sensor for a conducting liquid that is found to have good linearity and repeatability within acceptable limits.
Book
Process measurement and analysis
TL;DR: In this article, the authors present a detailed description of the characteristics of a flowmetering system and its application in a variety of applications, including the following: anemometers BTU Flowmeters for Heat Exchangers BTUs for Gaseous Fuels Cross-Correlation Flow Metering Elbow Taps Flow Switches Jet Deflection Flow Detectors Laminar Flow Meters, Magnetic FlowMeters, Coriolis Mass Flow-meters-Miscellaneous Mass Flowmetmers-Thermal Metering Pumps Orifices Pitot Tubes and