variable capacitor


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variable capacitor

[′ver·ē·ə·bəl kə′pas·əd·ər]
(electricity)
A capacitor whose capacitance can be varied continuously by moving one set of metal plates with respect to another.
References in periodicals archive ?
The last one operates as an inductor of only one winding and its terminals are connected to a variable capacitor of high voltage that allows the tuning of the antenna's resonance in a particular frequency.
Tenders are invited for Super Linear Variable Capacitor (Slvc), Detail Specifications And Drawings As Per Annexure-1
Tuning capabilities that arise from the implementation of a variable capacitor are presented.
It consists of a fixed inductor and variable capacitor. The non-contact measurement technology is used to obtain pressure information [7, 8].
The transmission-line segment ([[theta].sub.2]) and varactor ([C.sub.v1]) are equivalent to the serial-connected inductor (L) and variable capacitor ([C'.sub.v1]).
The RF power adjustment is accomplished by means of a semi-automatic circuit which controls the power supplied to the product, that is being dried through a variable capacitor, located in the generator.
The materials generate static as they rub together while the circuitry acts like a variable capacitor, storing up the electrical charge generated, reports New Scientist.
It has a stainless steel diaphragm and an insulated electrode, which forms a variable capacitor. "As pressure increases or decreases, the capacitance changes," explained Duchesneau.
Lee, "MEMS-based Variable Capacitor for Millimeter-wave Applications,'" IEEE Solid-State Sensor and Actuator Workshop, June 2000, pp.
A low-noise RF voltage controlled oscillator using on-chip high-Q three-dimensional coil inductor and micromachined variable capacitor. Tech.
These firmly secured surfaces are mounted so that a minute change in applied pressure alters the gap between them, creating a variable capacitor. The resulting change in capacitance is detected and converted to a proportional high-level analog signal.
The STPTIC is also smaller, combining a single, variable capacitor with control circuitry using ST s Integrated Passive and Active Device (IPAD ) technology.

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