Journal ArticleDOI
AZKA cell, the current-mode alternative of Wheatstone bridge
Seyed Javad Azhari,Hooman Kaabi +1 more
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TLDR
In this paper, a new circuit topology based on duality of the well known voltage-mode Wheatstone bridge is described, which can implement ratiometric current measurement which is a vital aspect of current-mode instrumentation and signal processing.Abstract:
This paper describes a new circuit topology based on duality of the well known voltage-mode Wheatstone bridge. This topology can implement ratiometric current measurement which is a vital aspect of current-mode instrumentation and signal processing. The theory of the proposed circuit is developed and its advantages and limitations are discussed. The new circuit (called AZKA cell) may be thought of as the current-mode alternative of traditional voltage-mode Wheatstone bridge. It presents the current-mode circuit designers and engineers their own relevant interface cell. The advantages of the new circuit are stated and some conditioning circuits for its output signal are proposed. Finally, a linearization circuit based on CCII+ is introduced.read more
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Journal ArticleDOI
Compact Current Reference Circuits with Low Temperature Drift and High Compliance Voltage.
TL;DR: In this work, excellent characteristics of LT199x selectable gain amplifiers are exploited to precisely divide an input current, and an excellent linearity is found with a relative error within ±0.1% after a preliminary calibration procedure.
Journal ArticleDOI
A Novel Fully Analog Null Instrument for Resistive Wheatstone Bridge With a Single Resistive Sensor
TL;DR: A fully analog method has been introduced in order to implement a null measurement instrument for a resistive Wheatstone bridge with a single resistive sensor to evaluate the performance and usefulness of the proposed method.
Journal ArticleDOI
Current-Based Measurement Technique for High Sensitivity Detection of Resistive Bridges With External Balancing Through Control Voltages
TL;DR: In this article, the authors present an approach based on differential measurements of dc currents with very high sensitivity suitable for the detection of very small variations of resistors in Wheatstone full-bridge configurations.
Proceedings ArticleDOI
A New Design of a Current-mode Wheatstone Bridge Using Operational Floating Current Conveyor
Yehya H. Ghallab,Wael Badawy +1 more
TL;DR: A new topology for current-mode Wheatstone bridge is presented that utilizes an operational floating current conveyor (OFCC) as a basic building block and out performs existing CMWBs in terms of accuracy.
Proceedings ArticleDOI
Modeling of capacitive sensor filled with elastic dielectrics and its advantages
O. P. Thakur,Anjani Kumar Singh +1 more
TL;DR: A comparative theoretical analysis of the traditional air gap capacitive sensor with the electrostriction based solid-state capacitive sensors has been carried out thoroughly in this article, where the authors highlighted the difficulties and limitations of air gap sensor with elastic dielectric material and suggested an alternative method of current-mode bridge for the purpose of sensing pressure and strain with high accuracy.
References
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Journal ArticleDOI
A second-generation current conveyor and its applications
Adel S. Sedra,Kenneth C. Smith +1 more
TL;DR: This correspondence introduces another new building block embodying the current conveying concept, but with different and more versatile terminal characteristics, considered to be a secondgeneration current conveyor.
Proceedings ArticleDOI
Operational floating current conveyor: characteristics, modelling and applications
TL;DR: In this paper, a new five-port general purpose analogue building block, termed as an operational floating current conveyor (OFCC), is described, which combines the features of current feedback (CFB) operational amplifier, second generation current conveyors and operational floating conveyor.
Journal ArticleDOI
Current operational amplifiers: basic architecture, properties, exploitation and future
TL;DR: It is demonstrated, that the single-input, differential-output COA as the adjoint element to the differentialinput, single-output voltage operational amplifier (VOA) is employable in current processing circuits alike the VOAs in voltage processing circuits.
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