Results 261 to 270 of about 28,848 (304)

Determination of the theoretical capacitance of a concave capacitance sensor

Review of Scientific Instruments, 1979
The practical use of four concave capacitance plates for determining in situ volume fractions in two-phase pipelines has been amply demonstrated. In this letter, the system is analyzed theoretically using a microstrip technique and the results are compared with experimental data.
M S, Abouelwafa, E J, Kendall
openaire   +2 more sources

Unique and Unclonable Capacitive Sensors

IEEE Sensors Journal, 2018
Inspired from nature, a new concept called 'sensors with unique and unclonable characteristic', has been developed. Such sensors respond to a measurand and provide a unique output. Random variations in the structure of the sensors are responsible for these unique characteristic.
Schwesinger, Norbert, Karuthedath, Cyril Baby   +2 more
openaire   +3 more sources

A Smart Capacitive Angle Sensor

IEEE Transactions on Industrial Informatics, 2005
This paper presents a smart capacitive angle sensor suited for automotive and industrial use. To comply with tough constraints of such applications in terms of environmental conditions, unit costs, and physical size, a fully integrated solution is mandatory.
Thilo Sauter, Herbert Nachtnebel, Nikolaus Kerö   +2 more
openaire   +1 more source

An accurate interface for capacitive sensors

IEEE Transactions on Instrumentation and Measurement, 2002
A new smart interface based on a first-order charge-balanced SC-oscillator is presented for capacitive sensors, which are shunted by a parasitic conductance. In the novel interface, the effect of shunting conductance is reduced by using the charge/discharge method.
Xiujun Li, Gerard C. M. Meijer
openaire   +1 more source

Capacitive touch sensor

Microelectronics International, 2018
Purpose The purpose of this paper is to analyse the possibilities of mechanical switch replacement by capacitive film touch sensor in applications requiring high reliability and short response time. Advantage of replacing mechanical switch by capacitive touch sensor is no mechanical wear and possible implementation of sensor in application where the ...
Samuel Zuk, Alena Pietrikova, Igor Vehec
openaire   +1 more source

Elastomeric capacitive sensors

2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, 2011
Elastomers are emerging as an alternative to inorganic materials for electromechanical transducers. The rubber-like polymers are characterized by high elasticity (their equivalent elastic modulus is typically 2 orders of magnitude lower than that of silicon) and high yield strain (>100%).
S.P. Lacour, D.P.J. Cotton
openaire   +1 more source

Capacitance sensor for microimaging

SPIE Proceedings, 2001
The ultimate aim of the work described here is to explore miniaturised electrical tomography systems. The initial target, described in this paper, has been to implement a sensor, integrated on silicon, and able to detect particles as small as 10 pm in diameter from changes in capacitance.
Trevor A. York, Iwan G. Evans, Zoran Pokusevski, Tomasz Dyakowski   +3 more
openaire   +1 more source

Capacitive Angular-Position Sensor

2007
This paper describes the design, realization and experimental characterization of a capacitive angular position sensor. The sensor is composed of two parts, namely the sensing element and the dedicated signal conditioning electronic circuit. The sensor is based on a low-cost Printed Circuit Board technology for the electrodes, and the use of a thick ...
FERRARI, Vittorio, GHISLA, Alessio, MARIOLI, Daniele, TARONI, Andrea, FASOLATO P., MAGGI F., PELLOSO S., ROSSETTO V.   +7 more
openaire   +2 more sources

A high-accuracy differential-capacitance-to-time converter for capacitive sensors

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), 2015
A high-accuracy switched-capacitor (SC) differential-capacitance-to-time converter (DCTC) for capacitive sensors is presented for high-accuracy ratiometric operation. This circuit does not require component matching. Performances of the proposed circuit are simulated by HSPICE using 0.18 µm CMOS process parameters.
Masanari Nagai, Satomi Ogawa
openaire   +1 more source

Reducing the Effect of Parasitic Capacitance on the Micro-capacitive Humidity Sensor

2019 IEEE 14th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2019
It is the most important issue of how the effects of parasitic capacitance can be reduced during the development of micro-capacitive humidity sensor systems. For this purposes, in this paper, step-by-step optimizations were carried out through packaging and circuit to achieve a high-precision, high-stability, and high-repetition humidity sensor system.
Jihang Liu, Lidong Du, Yichen Pan, Yusi Zhu, Zhen Fang 0003, Zhan Zhao   +5 more
openaire   +1 more source