A high frequency stray-immune capacitance transducer based on the charge transfer principle

Huang, Sunxiang; Green, R.G.; Plaskowski, A.; Beck, Mario

doi:10.1109/19.7457

Cited by 78 publications

(41 citation statements)

References 1 publication

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“…A stray-immune charge transfer principle based capacitance transducer is adopted to measure the relative permittivity of the electrorheological fluids in this paper [7]. The measuring system is show in Fig.…”

Section: Relative Permittivity Measurementmentioning

confidence: 99%

Preparation and electrorheological property of rare earth modified amorphous BaxSr1−xTiO3 gel electrorheological fluid

Zhao

Chen

et al. 2005

Journal of Colloid and Interface Science

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Section: Relative Permittivity Measurementmentioning

confidence: 99%

Preparation and electrorheological property of rare earth modified amorphous BaxSr1−xTiO3 gel electrorheological fluid

Zhao

Chen

et al. 2005

Journal of Colloid and Interface Science

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“…There are four pairs of capacitive sensors installed for the signal processing. The techniques suitable for industrial measurement of capacitance include resonance, oscillation, charge/discharge and AC bridge methods [23][24][25]. In this paper, the capacitance measurement circuit based on a high-speed differential sampling method is used [26], which can obtain the performance of 1.0fF resolution and up to 100kHz sample frequency.…”

Section: Methodsmentioning

confidence: 99%

Flow regime detection of mini-pipe gas-liquid two-phase flow based on PCA and SVM

Huang

et al. 2010

2010 IEEE Instrumentation &Amp; Measurement Technology Conference Proceedings

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A simple flow regime detection method of gas-liquid two-phase flow is presented, used in mini-pipes. First, the capacitance signals are obtained, and some simple statistics eigenvalues, such as mean value, standard deviation, total energy, average amplitude, zero-crossing rate and probability density function, are analyzed and used to identify the flow regimes. The principal component analysis (PCA) method is used to reduce the dimensionality of data sets and eliminate multi-collinearity of variables. PCA of four pairs of capacitance sensor can also reduce the noise influence. Then support vector machine (SVM) method is used to detect flow regime. In experiment, bubble flow, stratified flow, slug flow and annular flow are observed in the pipes with inner diameter of 3.1mm. Four electrical capacitance sensors are installed. Based SVM theory, a set of binary classifier is constructed, and flow regime can be detected successfully. The results show that the presented method is effective, and can improve the accuracy of flow regime identification.

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“…An ultra low noise capacitive sensor is very important for the inertial sensors. Capacitive sensors have been developed based on many kinds of methods, such as bridge-type measuring techniques [9,10], frequency or phase shift method by resonance measuring techniques [11][12][13], charge transfer measuring principle [14], and so on. Low-noise technologies for capacitive sensors have also been investigated [15][16][17][18].…”

Section: Design and Progress Of Capacitive Position Sensormentioning

confidence: 99%

Capacitive position measurement for high-precision space inertial sensor

Bai

Zhou

et al. 2009

Front. Phys. China

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Low noise position measurement is fundamental for space inertial sensors, and at present the capacitive position sensor is widely employed for space inertial sensors. The design for the possible suppression of the front-end electric noises for a capacitive sensor is presented. A prototype capacitive sensor with 2×10 −6 pF/Hz 1/2 at frequency above 0.04 Hz is achieved and further improvements are discussed.

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A high frequency stray-immune capacitance transducer based on the charge transfer principle

Cited by 78 publications

References 1 publication

Preparation and electrorheological property of rare earth modified amorphous BaxSr1−xTiO3 gel electrorheological fluid

Preparation and electrorheological property of rare earth modified amorphous BaxSr1−xTiO3 gel electrorheological fluid

Flow regime detection of mini-pipe gas-liquid two-phase flow based on PCA and SVM

Capacitive position measurement for high-precision space inertial sensor

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