An Optimized Lightweight Ultrasonic Liquid Level Sensor Adapted to the Tilt of Liquid Level and Ripple

Huang, Shilei; Long, Wei; Liao, Junbi; Li, Ming; Yu, Yongjie; Gan, Fanyi

doi:10.1109/jsen.2021.3127127

Cited by 17 publications

(7 citation statements)

References 15 publications

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“…Additionally, ultrasonic sensors can be affected by the tilt of a liquid level and ripple, as well as foaming. However, methods for addressing such issues are available in the literature [ 32 ]. The measured distance is obtained on the microcontroller by measuring the signal duration and known speed of sound under the current conditions.…”

Section: Methodsmentioning

confidence: 99%

“…Many examples of machine vision-based approaches in food and pharmaceutical industries can be found in [20,21]. However, there are other measurement techniques available like those based on resistive [22], inductive [23], load or pressure sensor [24,25], radar-based [26,27], capacitive [28], piezoelectric [29], ultrasonic [30][31][32], and fiber-optic transducers [33], as well as ones that are being experimentally tested from a scientific point of view like thermal cameras [34]. Many of these techniques have the disadvantage of being intrusive or having a discrete output (e.g., fiber-optic).…”

Section: Literature Review and Contributionsmentioning

confidence: 99%

See 1 more Smart Citation

Image-Based Sensor for Liquid Level Monitoring during Bottling with Application to Craft and Home-Brewing

Musić

Stančić

Džaja

et al. 2023

Sensors

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Although craft and home brewing have fueled the beer renaissance in the last decade, affordable, reliable, and simple sensing equipment for such breweries is limited. Thus, this manuscript is motivated by the improvement of the bottle-filling process in such settings with the objective of developing a liquid level sensor based on a novel application of the known optical phenomena of light refraction. Based on the different refraction indices of liquid and air (and critical angle based on Snell’s law), along with a novel LED light source positioning, a reliable liquid level sensor system was built with the aid of an embedded microcontroller. The used operating principle is general and can be used in applications other than the proposed one. The proposed method was extensively tested in a laboratory and limited production settings with a speed of 7 Hz using different liquids and container shapes. It was compared for accuracy to other sensing principles such as ultrasound, infrared, and time-of-flight. It demonstrated comparable or better performance with a height error ranging between −0.1534 mm in static conditions and 1.608 mm for realistic dynamic conditions and good repeatability on the production line with a 4.3 mm standard deviation of the mean.

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Section: Methodsmentioning

confidence: 99%

Section: Literature Review and Contributionsmentioning

confidence: 99%

Image-Based Sensor for Liquid Level Monitoring during Bottling with Application to Craft and Home-Brewing

Musić

Stančić

Džaja

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…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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“…In technical practice, precise liquid level measurement is often necessary [1]. One common method for such measurement is the ultrasonic signal measurement, which has various applications beyond level measurement, including determining the composition of multiphase flow of oil, water, and gas in pipelines [2], monitoring pipeline corrosion in oil and gas [3], measuring the three-phase flow of oil, gas, and water in the oil production and transportation process [4], measuring the density of liquids [5,6], and determining the concentration of emulsion liquids [7].…”

Section: Introductionmentioning

confidence: 99%

“…The automotive industry deploys a wide range of sensors and sensor systems in its solutions, and one of the purposes is to measure oil levels. In general, for the purpose of liquid level measurement, for example, ultrasonic [1,[8][9][10], optical [11][12][13], or capacitive [14][15][16] principles can be used [17]. However, not all of them are suitable for measuring the oil level as there are constant changes in the oil properties and even the environment of the engine itself [18].…”

Section: Introductionmentioning

confidence: 99%

Identification of the Physical Dependencies of Accurate Oil Level Measurement for Automotive Applications

et al. 2023

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The presented research addresses the problem of dependency analysis of the ultrasonic signal measured by a sensor in an engine oil bath. The dependency analysis is performed on a selected ultrasonic signal sensor solution containing its own generator and an ultrasonic signal receiver detecting the level of the oil in which it is immersed. The influence of the resulting amplitude of the received ultrasonic signal is mainly due to the level of the measured oil level and the oil temperature, as shown by the regression analysis and ANOVA (Analysis of Variance) testing performed. The analyzed dependence of the time determination of the length of the generated ultrasonic signal envelope is given by a set threshold value, which can be dynamically adjusted based on the backtracking evaluation. The analysis results in the form of approximation by the dependency algorithm confirm the assumption of possible standardization of the envelope parameters with the achievement of accuracy up to 99.02%. The analyzed parameters approximated by the temperature and oil level dependence algorithms include the amplitude of the measured signal, steepness of the rising edge, duration of the envelope, and the digitally processed amplitude value.

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An Optimized Lightweight Ultrasonic Liquid Level Sensor Adapted to the Tilt of Liquid Level and Ripple

Cited by 17 publications

References 15 publications

Image-Based Sensor for Liquid Level Monitoring during Bottling with Application to Craft and Home-Brewing

Image-Based Sensor for Liquid Level Monitoring during Bottling with Application to Craft and Home-Brewing

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

Identification of the Physical Dependencies of Accurate Oil Level Measurement for Automotive Applications

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