DOI: 10.1063/1.2428269. Lock-in amplifier error prediction and correction in frequency sweep measurements

Lock-in amplifier error prediction and correction in frequency sweep measurements

10.1063/1.2428269

Crossref journal-article

AIP Publishing

Review of Scientific Instruments (317)

Abstract

This article proposes an analytical algorithm for predicting errors in lock-in amplifiers (LIAs) working with time-varying reference frequency. Furthermore, a simple method for correcting such errors is presented. The reference frequency can be swept in order to measure the frequency response of a system within a given spectrum. The continuous variation of the reference frequency produces a measurement error that depends on three factors: the sweep speed, the LIA low-pass filters, and the frequency response of the measured system. The proposed error prediction algorithm is based on the final value theorem of the Laplace transform. The correction method uses a double-sweep measurement. A mathematical analysis is presented and validated with computational simulations and experimental measurements.

Bibliography

Sonnaillon, M. O., & Bonetto, F. J. (2007). Lock-in amplifier error prediction and correction in frequency sweep measurements. Review of Scientific Instruments, 78(1).

Authors 2

Maximiliano Osvaldo Sonnaillon (first)
Fabian Jose Bonetto (additional)

References 5 Referenced 12

{'key': '2023070316190983200_c1', 'article-title': 'About Lock-In Amplifiers'} / About Lock-In Amplifiers
10.1063/1.1854196 / Rev. Sci. Instrum. (2005)
{'year': '2006', 'key': '2023070316190983200_c3', 'article-title': 'Agilent E5100A Network Analyzer Technical Overview'} / Agilent E5100A Network Analyzer Technical Overview (2006)
{'edition': '4th ed.', 'volume-title': 'Phase-Locked Loops—Design, Simulation and Applications', 'year': '1996', 'key': '2023070316190983200_c4'} / Phase-Locked Loops—Design, Simulation and Applications (1996)
{'key': '2023070316190983200_c5', 'first-page': '603', 'volume-title': 'Signals and Systems', 'author': 'Oppenheim', 'year': '1983', 'edition': '1st ed.'} / Signals and Systems by Oppenheim (1983)

Dates

Type	When
Created	18 years, 8 months ago (Jan. 5, 2007, 4:31 a.m.)
Deposited	2 years, 2 months ago (July 3, 2023, 12:23 p.m.)
Indexed	1 month ago (July 30, 2025, 6:48 a.m.)
Issued	18 years, 8 months ago (Jan. 1, 2007)
Published	18 years, 8 months ago (Jan. 1, 2007)
Published Online	18 years, 8 months ago (Jan. 4, 2007)
Published Print	18 years, 8 months ago (Jan. 1, 2007)

Funders 0

None

BibTeX

@article{Sonnaillon_2007, title={Lock-in amplifier error prediction and correction in frequency sweep measurements}, volume={78}, ISSN={1089-7623}, url={http://dx.doi.org/10.1063/1.2428269}, DOI={10.1063/1.2428269}, number={1}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Sonnaillon, Maximiliano Osvaldo and Bonetto, Fabian Jose}, year={2007}, month=jan }

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