Performance analysis of capacitance-type liquid level measurement at inclined positions

Bardiya, Siddharth; Vasuki, B.

doi:10.1109/icicict1.2017.8342832

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…SiddharthBardiya et al in [13] have analysed the design proposed by Bera et al [12] under different orientations of the container. The container, along with the sensor system, was kept on an inclined wedge, whose angle could be varied incrementally.…”

Section: Capacitive Sensors -Cylindrical Geometrymentioning

confidence: 99%

A Review on Capacitive Liquid Level Sensing Techniques

S¹,

Roopa²,

Harigovind³

et al. 2021

JUSST

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For contemporary communities, liquid-level management is of great significance. Liquid-level monitoring is utilized in a variety of industrial applications, including food processing, pharmaceutical manufacturing, chemical manufacturing, and water purification systems. Liquids are used in critical applications such as rocket fuel tanks, medical equipment, etc. These systems are prone to accidents caused by liquid leakages and liquid turbulence. Hence it is necessary to prevent such mishaps and save resources and additional costs which are incurred due to the same. This necessitates the design and development of liquid-level sensing systems that are used to detect and monitor the level of liquid. There are many techniques that can be used to sense the level of liquid-like mechanical floats, ultrasonic sensors, fibre optic cables, LASER systems, light dependant resistors, image processing, etc. Capacitive sensing has emerged as one of the booming technologies due to its simplistic design, responsiveness, accuracy, noise immunity, and easy deployment. It has evolved over time and is now a vital feature of a variety of products. This paper aims to review the existing capacitive sensing mechanisms and attempts to serve as a foundation for unexplored sensor geometries. A comparative analysis has been presented to assess the performance of the proposed techniques. Coplanar capacitive sensors are found to be effective over cylindrical capacitive sensors due to a decrease in size, simple design, and cost-effectiveness while maintaining the same accuracy, resolution and sensitivity.

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Section: Capacitive Sensors -Cylindrical Geometrymentioning

confidence: 99%

A Review on Capacitive Liquid Level Sensing Techniques

S¹,

Roopa²,

Harigovind³

et al. 2021

JUSST

View full text Add to dashboard Cite

show abstract

“…When studying volume measurement, the capacitivetype sensor [35] is commonly employed in tanks affected by changes in orientation, as evidenced in several research works. For example, the analysis presented in [36] examines a sensor composed of two concentric cylinders constructed from insulating material. An additional cylinder separates these cylinders, resulting in an air gap between the inner and intermediate cylinders.…”

Section: Introductionmentioning

confidence: 99%

A New Methodology-Based Sensorial System with Which to Determine the Volume of Liquid Contained in a Cylindrical Tank Subjected to Full Variations in Its Orientation

del Horno,

Segura,

Somolinos

et al. 2023

JMSE

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It is necessary to determine the volume of water contained in a tank for a wide range of applications, such as the automation and monitoring of industrial operations. In the context of the marine industry, the aforementioned information plays a vital role in the effective management of submerged devices, specifically in relation to their depths and/or inclinations. In these cases, it is not feasible to quantify the volume of liquid in a tank by means of direct measurements, owing to the fact that devices can be subjected to changes in their orientation. This variation in inclination could have a variety of causes, such as the implementation of automated emersion–immersion maneuvers in a TEC or variations in depth in an AUV. Nevertheless, it can be deduced by considering the level of the tank and its geometric properties. This paper presents a new methodology-based sensorial system (composed of three capacitive sensors and an inclinometer) for accurate determination of the volume of a liquid contained within a cylindrical tank subjected to full variations in its orientation. The effectiveness of the proposed methodology-based sensorial system has been verified by the results obtained from experiments conducted on a laboratory platform, thus demonstrating the high reliability of the model experiment and the relative errors study carried out.

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“…Angle measurement can be realized based on the capacitance principle [19,20]. Rao et al [21] proposed a capacitive multi-layer structure rotation measurement sensor (MSRMS), where the mass block produces displacement changes according to the tilt degree to change the positive area between the capacitor plates, and then the value of the capacitance changes to measure the tilt.…”

Section: Introductionmentioning

confidence: 99%

A novel rotation detection method based on the capacitance principle and triboelectric effect

Wang

Yao

et al. 2021

Meas. Sci. Technol.

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With the rapid development of automation, more rotating monitoring equipment has been applied in modern industrial and civil fields. Conventional rotating monitoring sensors such as Hall rotating sensor and variable reluctance rotating sensor have a complex structure and their split structure is not convenient to layout. In the present study, a multi-layer structure rotation measurement sensor (MSRMS) is proposed based on the triboelectric effect and the capacitance principle. The proposed sensor consists of a stator and a rotor and measures the rotational speed based on the relative rotation between the copper electrode (Cu) on the stator and the polytetrafluoroethylene film on the rotor, and the variations of the electrostatic-induced voltage in the electrode, and can generate an alternating voltage waveform. When the rotor rotates, the correlation between the relative area of the stator and rotor electrode plates and the capacitor capacitance can be applied to measure the rotation angle. Then the MSRMS is applied to the programmable motor and the tripod for testing. It is found that the maximum error of the speed measurement is less than 0.2%. The coefficient of determination R 2 of the fitting for the distribution of the capacitance and the rotation angle is higher than 0.99688, which shows that capacitance is related to the rotation angle. The proposed sensor can not only measure the static rotation angle, but also dynamically monitor the speed and direction of rotation, and has a good application prospect.

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Performance analysis of capacitance-type liquid level measurement at inclined positions

Cited by 6 publications

References 6 publications

A Review on Capacitive Liquid Level Sensing Techniques

A Review on Capacitive Liquid Level Sensing Techniques

A New Methodology-Based Sensorial System with Which to Determine the Volume of Liquid Contained in a Cylindrical Tank Subjected to Full Variations in Its Orientation

A novel rotation detection method based on the capacitance principle and triboelectric effect

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