Analog Lock-In Amplifier Design Using Subsampling for Accuracy Enhancement in GMI Sensor Applications

Analog Lock-In Amplifier Design Using Subsampling for Accuracy Enhancement in GMI Sensor Applications

A frequency downscaling technique for enhancing the accuracy of analog lock-in amplifier (LIA) architectures in giant magneto-impedance (GMI) sensor applications is presented in this paper. As a proof of concept, the proposed method is applied to two different LIA topologies using, respectively, ana...

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Bibliographic Details
Main Authors: José M. Algueta-Miguel, J. Jesús Beato-López, Antonio J. López-Martín
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Sensors
Subjects:
lock-in amplifier
phase-sensitive detector
GMI sensor
subsampling
sample-and-hold
Online Access:https://www.mdpi.com/1424-8220/23/1/57

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