Liquid-level measurement system based on a remote grounded capacitive sensor

Reverter, Ferran; Li, Xiujun; Meijer, G.C.M.

doi:10.1016/j.sna.2007.04.027

Cited by 152 publications

(71 citation statements)

References 8 publications

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“…In recent years capacitive sensors have found various applications in different fields [1][2][3][4][5][6]. Design of the sensor system consists of a capacitance probe and the measuring module for the capacitance monitoring.…”

Section: Introductionmentioning

confidence: 99%

Investigation of water electrical parameters as a function of measurement frequency using cylindrical capacitive sensors

Golnabi

Sharifian

2013

Measurement

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Section: Introductionmentioning

confidence: 99%

Investigation of water electrical parameters as a function of measurement frequency using cylindrical capacitive sensors

Golnabi

Sharifian

2013

Measurement

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“…As analyzed in [12], at operating frequencies up to hundreds of kilohertz the water is practically conductive, exhibiting an equivalent ohmic resistance, while its capacitive and inductive characteristics are negligible. Also, its electrical characteristics are affected by the existence of dissolved solutes [17].…”

Section: The Proposed Capacitive Sensormentioning

confidence: 99%

“…The design of long-range capacitive sensors has been studied in [8], but it has only been limited to computer simulations. The water level capacitive sensors reported in [9][10][11][12][13] have been designed to operate over a relatively small range (i.e. below 1 m).…”

Section: Introductionmentioning

confidence: 99%

A low-cost capacitive sensor for water level monitoring in large-scale storage tanks

Loizou

Koutroulis

Zalikas³

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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Water-level sensors are indispensable for monitoring the level of water in storage tanks, which are used in drinking water distribution networks. In this paper, a long-range capacitive-type water-level sensor is presented. The proposed sensor is constructed using widely-available multilayer tubes, which are used for building drinking water systems. Thus, both the manufacturing cost of the sensor and the cost of the associated electronic circuits, which are used for interfacing the sensor to a digital data-acquisition unit, are low. The performance of the proposed sensor has been evaluated in a water storage tank of a city-scale water distribution network. The experimental results indicate that the accuracy of the proposed experimental prototype sensor is equivalent to that of a commercially available ultrasound water level sensor, while, additionally, its manufacturing cost is significantly lower.

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“…The sensor transducer is suitably used for converting pressure variations (Takahata and Gianchandani, 2008), humidity measurements (DeHennis and Wise, 2005) into corresponding signal with equivalent frequency. Further, such transducers have been used in water level measurement system or even telemetry systems (Mariun et al, 2006;Reverter et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Design of Capacitance to Voltage Converter for Capacitive Sensor Transducer

Helén¹

2010

American Journal of Applied Sciences

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Problem statement:The design of Capacitance to Voltage Converter (CVC) for capacitive sensor transducer was presented. The proposed design will reduce the size, power consumption and supply voltage of the circuit and can be used in high frequency band transducer. Approach: The design was implemented using the Operational amplifier (Op amp) and capacitive network. The circuit was simulated using the PSPICE model parameters based on standard 0.13 µm CMOS process. Results: The design was able to measure a wide range of capacitance variations for the capacitive transducer. The performance analysis of the design showed desirable performance parameters in terms of response, low power consumption and a linear output voltage within the wide range of capacitive transducer capacitance variation for the power supply voltage of 1.2 V was achieved. Conclusion/Recommendations: The output voltage of the circuit varied linearly with the variation of capacitive transducer capacitance variation. The improved converter was compact and robust for integration into capacitive measuring systems and suitable for use in environment that making use of higher frequency band.

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Liquid-level measurement system based on a remote grounded capacitive sensor

Cited by 152 publications

References 8 publications

Investigation of water electrical parameters as a function of measurement frequency using cylindrical capacitive sensors

Investigation of water electrical parameters as a function of measurement frequency using cylindrical capacitive sensors

A low-cost capacitive sensor for water level monitoring in large-scale storage tanks

Design of Capacitance to Voltage Converter for Capacitive Sensor Transducer

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