Application of Analog Adaptive Filters for Dynamic Sensor Compensation
Application of Analog Adaptive Filters for Dynamic Sensor Compensation
This paper investigates the application of analog adaptive techniques to the area of dynamic sensor compensation, of which there is little reported work in the literature. The case is illustrated by showing how the response of a load cell can be improved to speed up the process of measurement. The load cell is a sensor with an oscillatory output in which the measurand contributes to the response parameters. Thus, a compensation filter needs to track variation in measurand whereas a simple, fixed filter is only valid at one specific load value. To facilitate this investigation, computer models for the load cell and the adaptive compensation filter have been developed. To allow a practical implementation of the adaptive techniques, a novel piecewise linearization technique is proposed in order to vary a floating voltage-controlled resistor in a linear manner over a wide range. Simulation and practical results are presented, thus demonstrating the effectiveness of the proposed techniques.
245-251
Jafaripanah, Mehdi
21e2ef95-1f99-44e4-b6e3-9358dc41baf6
Al-Hashimi, Bashir
0b29c671-a6d2-459c-af68-c4614dce3b5d
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
February 2005
Jafaripanah, Mehdi
21e2ef95-1f99-44e4-b6e3-9358dc41baf6
Al-Hashimi, Bashir
0b29c671-a6d2-459c-af68-c4614dce3b5d
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Jafaripanah, Mehdi, Al-Hashimi, Bashir and White, Neil M.
(2005)
Application of Analog Adaptive Filters for Dynamic Sensor Compensation.
IEEE Transaction On Instrumentation and Measurement, 54 (1), .
Abstract
This paper investigates the application of analog adaptive techniques to the area of dynamic sensor compensation, of which there is little reported work in the literature. The case is illustrated by showing how the response of a load cell can be improved to speed up the process of measurement. The load cell is a sensor with an oscillatory output in which the measurand contributes to the response parameters. Thus, a compensation filter needs to track variation in measurand whereas a simple, fixed filter is only valid at one specific load value. To facilitate this investigation, computer models for the load cell and the adaptive compensation filter have been developed. To allow a practical implementation of the adaptive techniques, a novel piecewise linearization technique is proposed in order to vary a floating voltage-controlled resistor in a linear manner over a wide range. Simulation and practical results are presented, thus demonstrating the effectiveness of the proposed techniques.
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Published date: February 2005
Organisations:
Electronic & Software Systems, EEE
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Local EPrints ID: 260354
URI: http://eprints.soton.ac.uk/id/eprint/260354
PURE UUID: a99e0346-a4a7-48f2-aff0-1a582e4c7967
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Date deposited: 21 Jan 2005
Last modified: 15 Mar 2024 02:41
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Contributors
Author:
Mehdi Jafaripanah
Author:
Bashir Al-Hashimi
Author:
Neil M. White
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