Results 1 to 10 of about 193,763 (276)
A Capacitance-to-Ground Measuring Method for Medium-Voltage Power Grid of a Ship Based on the Combination of High and Low Frequencies. [PDF]
Sensors (Basel)With the increase in capacity of large ship electric power systems, medium-voltage electric power systems have gradually become an inevitable choice. Among China’s large ships, the neutral point of the power system is usually grounded by high resistance,
Wang S, Chen L, Li Z, Zhao Z.
europepmc +2 more sources
METHODS OF SMALL CAPACITANCE MEASUREMENT IN ELECTRICAL CAPACITANCE TOMOGRAPHY
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017 The paper presents the main methods of small capacitance measurement used in electrical capacitance tomography: the AC method with a sine wave excitation and the charge-discharge method with square wave excitation.
Waldemar Smolik +3 more
doaj +2 more sources
Method to Evaluate the Resistance–Capacitance Voltage Divider and Uncertainty Analysis
Energies, 2021 The resistance and capacitance parameters of a resistance–capacitance divider may change due to factors such as long-term operation, internal insulation flashover, and dielectric breakdown, which will affect the measurement characteristics of the ...
Yi Luo +6 more
doaj +1 more source
Capacitive sensor readout circuit based on sample and hold method
Energy Reports, 2022 This paper presents a capacitive sensor readout circuit using sample and hold method. The proposed readout circuit is used to convert capacitance from sensor to DC (direct current) voltage output.
Wandee Petchmaneelumka +3 more
doaj +1 more source
An Automatic Offset Calibration Method for Differential Charge-Based Capacitance Measurement
Journal of Low Power Electronics and Applications, 2021 Charge-Based Capacitance Measurement (CBCM) technique is a simple but effective technique for measuring capacitance values down to the attofarad level. However, when adopted for fully on-chip implementation, this technique suffers output offset caused by
Umberto Ferlito +3 more
doaj +1 more source
The Transformer Bridge Principle Circuit Using RF Admittance Technology
Sensors, 2023 To investigate the problem of the lag stability of the capacitance value during the level drop of the dirty U-shaped liquid level sensor, the equivalent circuit of the dirty U-shaped liquid level sensor was analyzed, and the transformer bridge’s ...
Fanfan Liu +3 more
doaj +1 more source
Resonant frequency measurements as an alternative to phase-selective A.C. polarography in tensammetry and pseudocapacitance determinations [PDF]
, 1983 A new method is proposed for the determination of the double-layer capacitance and pseudocapacitance of electrochemical cells. The method is based on the measurement of the resonant frequency of the circuit consisting of the electrochemical cell ...
Bos, M., Bruggink, W.H.M.
core +8 more sources
Fermentation, 2021 This paper focuses on the design of soft sensors for on-line monitoring of the biotechnological process of biopolymer production, in which biopolymers are accumulated in bacteria as an intracellular energy storage material.
Pavel Hrnčiřík
doaj +1 more source
Precision measurement of pixel sensor capacitance [PDF]
Journal of Instrumentation, 2021 13 pages, 12 ...
Krüger, H., Kimmerle, E.
openaire +2 more sources