capacitive sensor flow rate measurement

CAPACITANCE SENSOR FOR VOID FRACTION MEASUREMENT …

CAPACITANCE SENSOR FOR VOID FRACTION MEASUREMENT IN A NATURAL CIRCULATION REFRIGERATION CIRCUIT ... increase natural circulation flow rate. In order to achieve reliable cooling performances, the natural circulation BWRs have to be designed and operated to avoid two-phase instability caused by adiabatic flashing, which is induced by the pressure drop due to gravity head at …

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Capacitive rod probe for continuous level measurement

The LV3000/LV4000 level sensors for continuous level measurement are flexible, cost-effective solution for applications involving liquids, pastes, and solids. The built-in (one-piece) electronic module provides a 4 to 20 mA output (2-wire) signal that is proportional to the process level. Zero and span adjustment helps account for various media, tank dimensions, rod lengths, and positions of ...

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Capacitive sensor for chopped maize throughput measurement ...

2010-01-01· The advantages of capacitive sensor are its non-contact way of the measurement, its relative simplicity, its possible suitability for the often difficult operating conditions found on agricultural machines (, Stafford et al., 1996, reported that the sensor based on electrical capacitance can be constructed to meet the criteria of minimal impedance to the flow material and of insensitivity ...

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Gas–Liquid Flow Rate Measurement Using a Twin-Plane ...

2019-09-20· Gas–Liquid Flow Rate Measurement Using a Twin-Plane Capacitive Sensor and a Venturi Meter Abstract: We introduce a flow meter to monitor the flow rate of individual phases in gas-liquid flows. The meter combines pressure data from a Venturi tube and void fraction data from a twin-plane capacitive sensor. By the twin geometry of the capacitive sensor it is possible to cross …

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CAPACITIVE MEASURING SYSTEM FOR TWO-PHASE FLOW …

Capacitive Measuring System For Two-Phase Flow Monitoring 2 Fig. 1. Schematic representation of the measurement system. Ring-type sensor The sensor used in this work comprises a set of five printed-circuit boards (PCB) mounted as depicted in figure 2. Each single PCB is fabricated thought standard fabrication process. The PCB is milled to ...

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[PDF] A Semicylindrical Capacitive Sensor With Interface ...

All the functions of the capacitive sensing method of the semicylindrical capacitive sensor used for flow rate measurement are proved successfully through HSPICE simulation. Measurement results have successfully confirmed the correct functions and performance of the semicylindrical capacitive sensor with an interface circuit used for flow rate measurement, which ranges from to L ...

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Capacitive flow sensor - Caterpillar Inc.

1995-08-31· This invention relates generally to capacitive flow sensors and more particularly to a capacitive flow sensor which produces a pulse signal whose width is indicative of flow. BACKGROUND ART. Flow sensors for measuring the flow rate of a liquid are known. Many different technologies have been applied to this problem: noise measurements, ultrasonics, and measuring heat loss are but a …

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Capacitive Sensing: Water Level Application

2018-03-05· Liquid level coplanar-plate capacitive sensors 16 Differential and Ratiometric Measurement of Liquid Level 19 Active Shielding 21 Out-of-Phase Liquid Level Technique 23 FDC1004 Capacitance to Digital Conversion 25 I2C data transfer between MCU and FDC1004 26 3 Methods and Materials 29 4 Sensor Layout Design 31 5 Programming 35 6 Measurement and …

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Voltage Converter for MEMS Accelerometers

flow through the sensor is needed to measure the capacitance between the proof mass and the fixed electrodes. The current flow through a capacitor, i, is given by: E L% ò8 òP E8 ò% òP (1) where C is the capacitance and V the voltage over the capacitor. The first term is the displacement measurement and the second one is known as the rate-of ...

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Capacitive gas flow sensor - SAUNDERS; DAVID N.

1997-07-28· Capacitive gas flow sensor . United States Patent 5959219 . Abstract: A gas flow sensor particularly useful for the measurement of relatively low flow rates. The sensor includes a flexible vane affixed to a substrate. One end of the vane is conductive and is permitted to move with the flexing of the vane. That end of the vane forms part of one or more capacitors such that as the vane bends ...

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A Semicylindrical Capacitive Sensor With Interface Circuit ...

2006-11-20· All the functions of the capacitive sensing method of the semicylindrical capacitive sensor used for flow rate measurement are proved successfully through HSPICE simulation. Measurement results have successfully confirmed the correct functions and performance of the semicylindrical capacitive sensor with an interface circuit used for flow rate measurement, which ranges from …

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