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Capacitance sensing drop counter
Journal of Biomedical Engineering, 1989A simple and inexpensive capacitive sensor which fits around any normal drip chamber has been devised. When it is made part of a suitable AC bridge circuit, the small changes in capacitance caused by the presence of a drop between the sensor plates can be reliably detected. The sensor is insensitive to its position on the drip chamber or to tilt of the
D R, Kirkby, P J, Hillson, C A, Mosse
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Behavior Studies by Capacitance Sensing
Science, 1961The movements of small burrowing animals submerged in sand are monitored through capacitance changes which detune radio-frequency oscillators. A new dimension of reptilian activity studies is possible by using this technique. Some early observations of several reptile species maintained in darkness in isothermal sand are given.
J L, KAVANAU, K S, NORRIS
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2009 International SoC Design Conference (ISOCC), 2009
Non invasive health monitoring systems are gaining great importance due to regular monitoring of health without the painful measurements for each test. Here we use the concept of capacitive sensing to measure heart rate and blood pressure noninvasively. The capsense technology has played a vital role in switching applications but our aim is to make the
R. Vishal, B. Poonkathirvelan
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Non invasive health monitoring systems are gaining great importance due to regular monitoring of health without the painful measurements for each test. Here we use the concept of capacitive sensing to measure heart rate and blood pressure noninvasively. The capsense technology has played a vital role in switching applications but our aim is to make the
R. Vishal, B. Poonkathirvelan
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Droplet-based interfacial capacitive sensing
Lab on a Chip, 2012This paper presented a novel droplet-based pressure sensor using elastic and capacitive electrode-electrolyte interfaces to achieve ultrahigh mechanical-to-electrical sensitivity (1.58 μF kPa(-1)) and resolution (1.8 Pa) with a simple device architecture.
Baoqing, Nie +3 more
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Capacitive microsystems for biological sensing
Biosensors and Bioelectronics, 2011The growing interest in personalized medicine leads to the need for fast, cheap and portable devices that reveal the genetic profile easily and accurately. To this direction, several ideas to avoid the classical methods of diagnosis and treatment through miniaturized and label-free systems have emerged.
V, Tsouti +3 more
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2010
The capacitive sensing electrodes on the top of a CMOS chip serve as an interface between the microelectronic readout system and the biological/chemical analyte. These electrodes are directly exposed to the analyte or an intermediate layer which will be described in Chapter 3 (Fig. 2.1). The sensing electrode can be realized by a standard CMOS process.
Ebrahim Ghafar-Zadeh, Mohamad Sawan
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The capacitive sensing electrodes on the top of a CMOS chip serve as an interface between the microelectronic readout system and the biological/chemical analyte. These electrodes are directly exposed to the analyte or an intermediate layer which will be described in Chapter 3 (Fig. 2.1). The sensing electrode can be realized by a standard CMOS process.
Ebrahim Ghafar-Zadeh, Mohamad Sawan
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Capacitive Stretch Sensing for Robotic Skins
Soft Robotics, 2019Various types of artificial skins have been developed to provide robots with a sense of touch. Because of their compliance, dielectric elastomer (DE) capacitive sensors are particularly suitable for soft robots. Although the electrodes of DE sensors exhibit nonlinear effects such as transient resistance changes and resistance peaks, this does not ...
Andreas, Tairych, Iain A, Anderson
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SAE Technical Paper Series, 1998
<div class="htmlview paragraph">Capacitive occupant sensing is described, beginning with sensor physics, sensor structure and implementation, basic attributes, and vehicle integration. Real-world sensing challenges, vehicle application pro's and con's, and combinations of capacitive and other occupant sensing technologies are then discussed.< ...
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<div class="htmlview paragraph">Capacitive occupant sensing is described, beginning with sensor physics, sensor structure and implementation, basic attributes, and vehicle integration. Real-world sensing challenges, vehicle application pro's and con's, and combinations of capacitive and other occupant sensing technologies are then discussed.< ...
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Two Simple Capacitance Sensing Solutions
2018 Zooming Innovation in Consumer Technologies Conference (ZINC), 2018Thanks to their low cost, modularity, and reusability, measurement systems based on low cost general-purpose microcontrollers are highly attractive solutions for undergraduate courses in electrical measurements and biomedical engineering. This paper describes two such systems developed for capacitance measurement - one relying upon voltage divider and ...
Nadica Miljkovic, Milan Bjelica
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2012
This chapter describes the basic properties of capacitive sensor technologies and their use in various kinds of sensors in industrial applications. Physical properties as well as some limitations of capacitive sensing are described here. The use of capacitive sensors with hazardous fluids, such as gasoline based fuels, and various configurations of ...
Edin Terzic +3 more
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This chapter describes the basic properties of capacitive sensor technologies and their use in various kinds of sensors in industrial applications. Physical properties as well as some limitations of capacitive sensing are described here. The use of capacitive sensors with hazardous fluids, such as gasoline based fuels, and various configurations of ...
Edin Terzic +3 more
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