Improved method of hysteresis compensation for a piezoelectric fiber optic voltage sensor

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8 Citations (Scopus)

Abstract

We report on an improved numerical method for hysteresis compensation within a hybrid piezoelectric fiber optic voltage sensor. The previous technique relied on laborious and relatively inaccurate individual curve-fitting procedures to create multiple sets of lookup functions used for the final derivation of the measured voltage. The new technique uses an aggregate 3-D arrangement of the captured hysteresis loops and applies a surface-fitting algorithm based on the Levenberg-Marquardt method to create two 3-D lookup functions, which are then used to derive the instantaneous value of the measured voltage. Furthermore, a more advanced algorithm for selecting top and bottom hysteresis-loop parts has been applied to eliminate errors associated with the incorrect selection at low voltage levels by the previous algorithm. The proposed enhancements greatly simplify the calibration process and significantly reduce measurement errors. The technique, implemented using a real-time signal-processing system, was tested and its effectiveness evaluated experimentally. The new algorithm provided complete phase error compensation, from approximately 7 to 0 deg, and magnitude error compensation down to 0.15% (full-scale output)—an improvement of more than 3 times over the previous technique.
Original languageEnglish
JournalOptical Engineering
Volume46
Issue number3
DOIs
Publication statusPublished - 15 Mar 2007

Fingerprint

Fiber optics
Hysteresis
fiber optics
hysteresis
Error compensation
sensors
Sensors
Electric potential
electric potential
Hysteresis loops
time signals
phase error
curve fitting
Curve fitting
Measurement errors
low voltage
signal processing
Numerical methods
Signal processing
derivation

Keywords

  • fibre optic sensors
  • voltage measurement
  • hysteresis
  • piezoelectric transducers
  • hysteresis compensation
  • surface fitting
  • electrical submersible pumps
  • Bragg gratings
  • Fiber Bragg grating sensors

Cite this

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title = "Improved method of hysteresis compensation for a piezoelectric fiber optic voltage sensor",
abstract = "We report on an improved numerical method for hysteresis compensation within a hybrid piezoelectric fiber optic voltage sensor. The previous technique relied on laborious and relatively inaccurate individual curve-fitting procedures to create multiple sets of lookup functions used for the final derivation of the measured voltage. The new technique uses an aggregate 3-D arrangement of the captured hysteresis loops and applies a surface-fitting algorithm based on the Levenberg-Marquardt method to create two 3-D lookup functions, which are then used to derive the instantaneous value of the measured voltage. Furthermore, a more advanced algorithm for selecting top and bottom hysteresis-loop parts has been applied to eliminate errors associated with the incorrect selection at low voltage levels by the previous algorithm. The proposed enhancements greatly simplify the calibration process and significantly reduce measurement errors. The technique, implemented using a real-time signal-processing system, was tested and its effectiveness evaluated experimentally. The new algorithm provided complete phase error compensation, from approximately 7 to 0 deg, and magnitude error compensation down to 0.15{\%} (full-scale output)—an improvement of more than 3 times over the previous technique.",
keywords = "fibre optic sensors, voltage measurement, hysteresis, piezoelectric transducers, hysteresis compensation, surface fitting, electrical submersible pumps, Bragg gratings, Fiber Bragg grating sensors",
author = "G. Fusiek and P. Niewczas and J.R. McDonald",
year = "2007",
month = "3",
day = "15",
doi = "10.1117/1.2714931",
language = "English",
volume = "46",
journal = "Optical Engineering : Journal of the Society of Photo-Optical Instrumentation Engineers",
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T1 - Improved method of hysteresis compensation for a piezoelectric fiber optic voltage sensor

AU - Fusiek, G.

AU - Niewczas, P.

AU - McDonald, J.R.

PY - 2007/3/15

Y1 - 2007/3/15

N2 - We report on an improved numerical method for hysteresis compensation within a hybrid piezoelectric fiber optic voltage sensor. The previous technique relied on laborious and relatively inaccurate individual curve-fitting procedures to create multiple sets of lookup functions used for the final derivation of the measured voltage. The new technique uses an aggregate 3-D arrangement of the captured hysteresis loops and applies a surface-fitting algorithm based on the Levenberg-Marquardt method to create two 3-D lookup functions, which are then used to derive the instantaneous value of the measured voltage. Furthermore, a more advanced algorithm for selecting top and bottom hysteresis-loop parts has been applied to eliminate errors associated with the incorrect selection at low voltage levels by the previous algorithm. The proposed enhancements greatly simplify the calibration process and significantly reduce measurement errors. The technique, implemented using a real-time signal-processing system, was tested and its effectiveness evaluated experimentally. The new algorithm provided complete phase error compensation, from approximately 7 to 0 deg, and magnitude error compensation down to 0.15% (full-scale output)—an improvement of more than 3 times over the previous technique.

AB - We report on an improved numerical method for hysteresis compensation within a hybrid piezoelectric fiber optic voltage sensor. The previous technique relied on laborious and relatively inaccurate individual curve-fitting procedures to create multiple sets of lookup functions used for the final derivation of the measured voltage. The new technique uses an aggregate 3-D arrangement of the captured hysteresis loops and applies a surface-fitting algorithm based on the Levenberg-Marquardt method to create two 3-D lookup functions, which are then used to derive the instantaneous value of the measured voltage. Furthermore, a more advanced algorithm for selecting top and bottom hysteresis-loop parts has been applied to eliminate errors associated with the incorrect selection at low voltage levels by the previous algorithm. The proposed enhancements greatly simplify the calibration process and significantly reduce measurement errors. The technique, implemented using a real-time signal-processing system, was tested and its effectiveness evaluated experimentally. The new algorithm provided complete phase error compensation, from approximately 7 to 0 deg, and magnitude error compensation down to 0.15% (full-scale output)—an improvement of more than 3 times over the previous technique.

KW - fibre optic sensors

KW - voltage measurement

KW - hysteresis

KW - piezoelectric transducers

KW - hysteresis compensation

KW - surface fitting

KW - electrical submersible pumps

KW - Bragg gratings

KW - Fiber Bragg grating sensors

U2 - 10.1117/1.2714931

DO - 10.1117/1.2714931

M3 - Article

VL - 46

JO - Optical Engineering : Journal of the Society of Photo-Optical Instrumentation Engineers

JF - Optical Engineering : Journal of the Society of Photo-Optical Instrumentation Engineers

SN - 0091-3286

IS - 3

ER -