Results 241 to 250 of about 57,698 (276)

Capacitance sensing drop counter

Journal of Biomedical Engineering, 1989
A 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
openaire   +2 more sources

Behavior Studies by Capacitance Sensing

Science, 1961
The 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
openaire   +2 more sources

Capacitive bio-sensing

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
openaire   +1 more source

Droplet-based interfacial capacitive sensing

Lab on a Chip, 2012
This 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
openaire   +2 more sources

Capacitive microsystems for biological sensing

Biosensors and Bioelectronics, 2011
The 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
openaire   +2 more sources

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