Active LR Integrator Circuit for Drift-Free Magnetoelastic Transducer

• Authors: P. Gazda , M. Nowicki , M. Kachniarz
• Languages of publication: EN

Abstracts

EN

Current integrator systems usually use active RC integrator circuits. Crucial dificulty associated with this analogue system is the integrator drift. The following paper presents the idea of the active integrator circuit based on inductive and resistive components. This concept allows to eliminate the time drift of the circuit, which is undesired phenomenon resulting from capacitive components working in the traditional negative feedback loop. The SPICE simulations were performed to validate the presented idea. Then, prototype circuit with discrete components was tested. Inductors were based on nanocrystalline and air cores. The developed solution was tested as magnetoelastic sensors transducer, to confirm the ability for long-term, continuous, drift-free, integrator circuit operation. The results were compared with traditional, RC circuit with automatic drift compensation.

Keywords

EN

07.55.-w; 75.50.Kj; 75.80.+q

Discipline

• 07.55.-w: Magnetic instruments and components
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 75.80.+q: Magnetomechanical effects, magnetostriction(for magnetostrictive devices, see 85.70.Ec)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 3
• Pages: 745-747

Dates

published

2018-03

Contributors

author

P. Gazda

• Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Andrzeja Boboli 8, 02-525 Warsaw, Poland

author

M. Nowicki

• Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Andrzeja Boboli 8, 02-525 Warsaw, Poland

author

M. Kachniarz

• Industrial Research Institute for Automation and Measurements PIAP, Al. Jerozolimskie 202, 02-486 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.133.745