dorsal/arxiv
View SchemaA sound card based multi-channel frequency measurement system
| Authors | S. Groeger, G. Bison, P. E. Knowles, A. Weis |
|---|---|
| Categories | |
| ArXiv ID | physics/0506068 |
| URL | https://arxiv.org/abs/physics/0506068 |
| DOI | 10.1051/epjap:2006020 |
Abstract
For physical processes which express themselves as a frequency, for example magnetic field measurements using optically-pumped alkali-vapor magnetometers, the precise extraction of the frequency from the noisy signal is a classical problem. We describe herein a frequency measurement system based on an inexpensive commercially available computer sound card coupled with a software single-tone estimator which reaches Cram\'er--Rao limited performance, a feature which commercial frequency counters often lack. Characterization of the system and examples of its successful application to magnetometry are presented.
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"abstract": "For physical processes which express themselves as a frequency, for example\nmagnetic field measurements using optically-pumped alkali-vapor magnetometers,\nthe precise extraction of the frequency from the noisy signal is a classical\nproblem. We describe herein a frequency measurement system based on an\ninexpensive commercially available computer sound card coupled with a software\nsingle-tone estimator which reaches Cram\\\u0027er--Rao limited performance, a\nfeature which commercial frequency counters often lack. Characterization of the\nsystem and examples of its successful application to magnetometry are\npresented.",
"arxiv_id": "physics/0506068",
"authors": [
"S. Groeger",
"G. Bison",
"P. E. Knowles",
"A. Weis"
],
"categories": [
"physics.ins-det"
],
"doi": "10.1051/epjap:2006020",
"title": "A sound card based multi-channel frequency measurement system",
"url": "https://arxiv.org/abs/physics/0506068"
},
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