A novel helical electrode type capacitance level sensor for liquid level measurement

Hanni, Jayalaxmi Rajesh; Venkata, Santhosh Krishnan

doi:10.1016/j.sna.2020.112283

Cited by 40 publications

(5 citation statements)

References 22 publications

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“…The hollow 2DPrG2DPMF-based sensor can be potentially applied to various liquid conditions. [40][41][42][43] The first example is the addressing application of hollow 2DPrG2DPMF-based sensor in water. As displayed in Figure 4a, among the arrays of hollow 2DPrG2DPMF-based sensors (taken 2 × 3 arrays as example), when the three adjacent microfibers are pressed, the corresponding signals of resistance change can be collected so that the specific address can be located.…”

Section: Resultsmentioning

confidence: 99%

Bioinspired Gas‐Confined Hollow Microfiber with 2D Conducting Polymer/Graphene Skeleton for Ultrasensitive Liquid Environment Sensor

Zou

Jiang

Wang

et al. 2021

Adv Materials Inter

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Due to the strong liquid intermolecular force, feasible sensing‐detection methods in liquid environments are absent. Inspired by fish swim bladder, herein, a hollow‐structured microfiber is designed to realize high‐performance sensing in liquid environments. It composes of 2D polypyrrole (2DPPy) and reduced graphene oxide (rGO), and its wall has a porous skeleton of 2DPPy/rGO/2DPPy (2DPrG2DP). The internal cavities of porous skeleton will be filled by the liquid, while leaving a bubble inside the hollow micropipe due to the liquid surface tension, thus forming a solid/liquid/gas triple‐phase interface. This hollow microfiber transforms the unmanageable liquid‐phase sensing into gas‐phase sensing. During this process, the good mechanical strength of 2DPPy enables the high sensing operability, and the reversible gas extrusion‐withdraw process enables the high sensitivity. The hollow 2DPrG2DP microfiber‐based sensor can be potentially used to machine trouble shooting, water level monitoring, ocean current monitoring, tsunami warning, body fluid and blood monitoring, and oil transportation monitoring.

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Section: Resultsmentioning

confidence: 99%

Bioinspired Gas‐Confined Hollow Microfiber with 2D Conducting Polymer/Graphene Skeleton for Ultrasensitive Liquid Environment Sensor

Zou

Jiang

Wang

et al. 2021

Adv Materials Inter

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“…The various types of liquid-level monitoring techniques are applied for different applications. Some popular detectors for liquid level measurements are the pressure sensor [18,19], ultrasonic sensor [15,20], optical sensor [21,22], capacitor sensor [23][24][25][26], etc. Every different sensor has its advantages and disadvantages due to its properties.…”

Section: Introductionmentioning

confidence: 99%

Study of the interdigital electrode sensor at resonance frequency during water transition

Ranjan,

Dash,

Maharana

et al. 2024

J. Inst.

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This paper uses the co-planar interdigital electrode (IDE) sensor to measure water level. The researchers generally characterize the interdigital electrode sensor as a fringe field capacitor sensor developed on the printed circuit board and utilize the capacitor sensor's properties for liquid-level measurement. The interdigital electrode sensors illustrate more than one resonance at the higher frequencies, and in this study, the first resonance frequency fr -has been utilized for the water level measurement. Three water types are examined here: distilled, tap, and river. The study assesses that with the transition of water, the permittivity between the electrodes is changed and, it leads to a change in capacitance hence, the change in resonance frequency was observed. The proposed sensor can be represented by the lumped element equivalent series RLC circuit. The developed IDE sensor has good repeatability, small variability, and small hysteresis error. The maximum standard error for distilled, tap, and river water are 0.02833, 0.02503, and 0.02618, respectively, and the hysteresis error is less than 1.903% of full-scale output variation. The maximum error for the fr estimation is about ±2 Hz.

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“…Commonly used examples are capacitive, optical, ultrasonic, and differential pressure [2][3][4][5]. However, these water level sensors are affected by changes in the properties of the liquid they measure, such as capacitance, reflection characteristics, and density [6].…”

Section: Introductionmentioning

confidence: 99%

Development of a Liquid Level Sensor Using a Floating Microbial Fuel Cell

Hirose,

Nakamoto,

Taguchi

2023

IEEJ Transactions Elec Engng

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In disaster prevention, it is important to know the liquid level, and various methods for sensing it have been proposed. In this letter, a liquid‐level sensor using a floating microbial fuel cell (FMFC) was developed. Since FMFC extracts electrical energy from the liquid, this sensor is power‐free. The liquid level sensor has a selectable resolution, and in this experiment, measurements were taken in 5‐cm increments. In addition, no effect on sensing performance was observed even when the properties of the solution to be measured changed. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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A novel helical electrode type capacitance level sensor for liquid level measurement

Cited by 40 publications

References 22 publications

Bioinspired Gas‐Confined Hollow Microfiber with 2D Conducting Polymer/Graphene Skeleton for Ultrasensitive Liquid Environment Sensor

Bioinspired Gas‐Confined Hollow Microfiber with 2D Conducting Polymer/Graphene Skeleton for Ultrasensitive Liquid Environment Sensor

Study of the interdigital electrode sensor at resonance frequency during water transition

Development of a Liquid Level Sensor Using a Floating Microbial Fuel Cell

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