Towards a Versatile and Cost-Effective Lock-In Amplifier

Mads Ehrhorn; Oscar G. Garcia; Edmund J.R. Kelleher; Simon J. Lange

doi:10.1109/IRMMW-THz57677.2023.10299329

Towards a Versatile and Cost-Effective Lock-In Amplifier

Mads Ehrhorn^*
, Oscar G. Garcia
, Edmund J.R. Kelleher
, Simon J. Lange

^*Corresponding author for this work

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

We present the development of a custom, cost-effective lock-in amplifier (LIA) for use in common laboratory settings. The LIA is built around the widely available and low cost STM32 microcontroller and off-the-shelf parts. It is designed and built with online tools, a process that enables iterating on the hardware and software quickly, which inspires regular improvements. The resulting amplifier provides high performance at a low cost in a small, low-power package, and we believe this will enable new use-cases. We benchmark our device against a widely used commercial digital lock-in amplifier, with results demonstrating the potential of combining software, hardware, and tools to create efficient and cost-effective custom laboratory solutions, not solely limited to lock-in amplifiers.

Original language	English
Title of host publication	Proceedings of 48^th Conference on Infrared, Millimeter, and Terahertz Waves
Number of pages	2
Publisher	IEEE
Publication date	2023
ISBN (Electronic)	9798350336603
DOIs	https://doi.org/10.1109/IRMMW-THz57677.2023.10299329
Publication status	Published - 2023
Event	48^th International Conference on Infrared, Millimeter, and Terahertz Waves - Montreal, Canada Duration: 17 Sept 2023 → 22 Sept 2023

Conference

Conference	48^th International Conference on Infrared, Millimeter, and Terahertz Waves
Country/Territory	Canada
City	Montreal
Period	17/09/2023 → 22/09/2023

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title = "Towards a Versatile and Cost-Effective Lock-In Amplifier",

abstract = "We present the development of a custom, cost-effective lock-in amplifier (LIA) for use in common laboratory settings. The LIA is built around the widely available and low cost STM32 microcontroller and off-the-shelf parts. It is designed and built with online tools, a process that enables iterating on the hardware and software quickly, which inspires regular improvements. The resulting amplifier provides high performance at a low cost in a small, low-power package, and we believe this will enable new use-cases. We benchmark our device against a widely used commercial digital lock-in amplifier, with results demonstrating the potential of combining software, hardware, and tools to create efficient and cost-effective custom laboratory solutions, not solely limited to lock-in amplifiers.",

author = "Mads Ehrhorn and Garcia, \{Oscar G.\} and Kelleher, \{Edmund J.R.\} and Lange, \{Simon J.\}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 48<sup>th</sup> International Conference on Infrared, Millimeter, and Terahertz Waves, 2023 IRMMW-THz ; Conference date: 17-09-2023 Through 22-09-2023",

year = "2023",

doi = "10.1109/IRMMW-THz57677.2023.10299329",

language = "English",

booktitle = "Proceedings of 48th Conference on Infrared, Millimeter, and Terahertz Waves",

publisher = "IEEE",

address = "United States",

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T1 - Towards a Versatile and Cost-Effective Lock-In Amplifier

AU - Ehrhorn, Mads

AU - Garcia, Oscar G.

AU - Kelleher, Edmund J.R.

AU - Lange, Simon J.

PY - 2023

Y1 - 2023

N2 - We present the development of a custom, cost-effective lock-in amplifier (LIA) for use in common laboratory settings. The LIA is built around the widely available and low cost STM32 microcontroller and off-the-shelf parts. It is designed and built with online tools, a process that enables iterating on the hardware and software quickly, which inspires regular improvements. The resulting amplifier provides high performance at a low cost in a small, low-power package, and we believe this will enable new use-cases. We benchmark our device against a widely used commercial digital lock-in amplifier, with results demonstrating the potential of combining software, hardware, and tools to create efficient and cost-effective custom laboratory solutions, not solely limited to lock-in amplifiers.

AB - We present the development of a custom, cost-effective lock-in amplifier (LIA) for use in common laboratory settings. The LIA is built around the widely available and low cost STM32 microcontroller and off-the-shelf parts. It is designed and built with online tools, a process that enables iterating on the hardware and software quickly, which inspires regular improvements. The resulting amplifier provides high performance at a low cost in a small, low-power package, and we believe this will enable new use-cases. We benchmark our device against a widely used commercial digital lock-in amplifier, with results demonstrating the potential of combining software, hardware, and tools to create efficient and cost-effective custom laboratory solutions, not solely limited to lock-in amplifiers.

U2 - 10.1109/IRMMW-THz57677.2023.10299329

DO - 10.1109/IRMMW-THz57677.2023.10299329

M3 - Article in proceedings

AN - SCOPUS:85177655433

BT - Proceedings of 48th Conference on Infrared, Millimeter, and Terahertz Waves

PB - IEEE

T2 - 48<sup>th</sup> International Conference on Infrared, Millimeter, and Terahertz Waves

Y2 - 17 September 2023 through 22 September 2023

ER -

Towards a Versatile and Cost-Effective Lock-In Amplifier

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