Liquid level control: Simplicity and complexity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Process Control"
DOI: 10.1016/j.jprocont.2019.12.008
Abstract: Abstract From a superficial perspective, the control of liquid level in a vessel is a “non-problem.” Well-known process control heuristics advise using a proportional-only controller with a gain Kc = 2. However many plant operators are uncomfortable… read more here.
Keywords: control liquid; control; controller gain; liquid level ... See more keywords
Liquid level detection in porcelain bushing type terminals using piezoelectric transducers based on auto-encoder networks
Sign Up to like & getrecommendations! Published in 2019 at "Measurement"
DOI: 10.1016/j.measurement.2019.04.014
Abstract: Abstract Liquid level of internal silicone oil is about the safety operation of high voltage porcelain bushing type (PBT) terminals, and its regular inspection can effectively prevent the security risks caused by oil leaks. In… read more here.
Keywords: porcelain bushing; level detection; method; liquid level ... See more keywords
Experimental and simulation study on the capacitive liquid level gauge of LNG vehicular cylinder
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.107930
Abstract: Abstract To obtain a high precision and intelligent level gauge in LNG vehicular cylinder, the three capacitive liquid level gauges (CLLGs) were developed through theoretical analysis, numerical simulation and experiment. Firstly, the composition distributions of… read more here.
Keywords: lng; vehicular cylinder; lng vehicular; level ... See more keywords
Liquid level and temperature sensing by using dual-wavelength fiber laser based on multimode interferometer and FBG in parallel
Sign Up to like & getrecommendations! Published in 2018 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2018.01.026
Abstract: Abstract The detection of liquid level and temperature based on a fiber ring cavity laser sensing configuration is presented and demonstrated experimentally. The sensing head contains a fiber Bragg grating (FBG) and a single-mode–cladding-less–single-mode multimode… read more here.
Keywords: temperature; interferometer; fbg; level temperature ... See more keywords
Fabrication of a screw-shaped plastic optical fiber for liquid level measurement
Sign Up to like & getrecommendations! Published in 2020 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2020.102237
Abstract: Abstract A screw-shaped plastic optical fiber (POF) is proposed as a liquid-level sensor. The screw-shape is fabricated on a POF by a simple heat pressing and twisting method. The liquid-level sensing performances of the so-obtained… read more here.
Keywords: shaped plastic; level; screw shaped; liquid level ... See more keywords
Magnetic Flap Type Difunctional Sensor for Detecting Pneumatic Flow and Liquid Level Based on Triboelectric Nanogenerator.
Sign Up to like & getrecommendations! Published in 2020 at "ACS nano"
DOI: 10.1021/acsnano.0c01436
Abstract: In recent years, the triboelectric nanogenerator (TENG) has attracted increasing attention because it not only converts various mechanical energy into electrical energy, but also produces electrical signals as responses. Based on the TENG, a magnetic… read more here.
Keywords: sensor; liquid level; flow; magnetic flap ... See more keywords
Theoretical Derivation and Experimental Study of Liquid Equilibrium Shapes under Different Rotation Modes
Sign Up to like & getrecommendations! Published in 2021 at "ACS Omega"
DOI: 10.1021/acsomega.1c02823
Abstract: Research shows that the surface shape of rotary liquid depends on the rotation mode. Mode A is that when the container wall rotates the liquid, the rotating liquid surface is paraboloid. Mode B is that… read more here.
Keywords: mode; part; surface; level ... See more keywords
A high-sensitivity liquid level sensor based on single-mode taper-thin core taper single-mode fiber structure
Sign Up to like & getrecommendations! Published in 2020 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/ab8dfd
Abstract: An optical in-fiber Mach-Zehnder interferometer (MZI) based on thin core fiber (TCF) for liquid level sensing is proposed and experimentally demonstrated. The sensor head is formed by single mode -taper-thin core - taper- single mode… read more here.
Keywords: mode; thin core; fiber; single mode ... See more keywords
Quasi-Distributed Optical Fiber Sensor for Liquid-Level Measurement
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2017.2776245
Abstract: A novel fiber-optic liquid level sensor based on a cross-correlation optical time-domain Fresnel reflection technology is proposed and demonstrated. By processing a single-mode fiber (SMF) to create multiple gaps for generating Fresnel reflections, liquids surrounding… read more here.
Keywords: sensor liquid; level; fiber; cross correlation ... See more keywords
Liquid Level Measurement Based on FBG-Embedded Diaphragms With Temperature Compensation
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2017.2768510
Abstract: This paper proposes a fiber optic liquid level sensor system based on a silica fiber Bragg grating embedded into an epoxy resin diaphragm coupled to a temperature reference sensor, used to compensate the temperature cross-sensitivity… read more here.
Keywords: level measurement; temperature; measurement based; level ... See more keywords
Low-Cost and High-Performance Optical Fiber-Based Sensor for Liquid Level Monitoring
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2019.2895549
Abstract: Liquid level sensing is nowadays a relevant issue in a broad range of applications, forcing the sensors performance and cost to be evaluated in parallel. This paper proposes a fiber optic-based liquid level sensor system… read more here.
Keywords: performance; liquid level; cost; sensor ... See more keywords