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Theory, Analysis and Design of RF Interferometric Sensors pp 35–54Cite as

Double-Channel Homodyne Interferometric Sensor

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Abstract

The previous chapter was devoted to the millimeter-wave interferometric sensor with homodyne configuration. This sensor was used for displacement measurement and liquid level gauging and achieved a resolution of 50 μm, which is equal to λ0/160, with λ0 being the free-space operating wavelength, and 0.3-mm maximum error.

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Notes

  1. 1.

    FFT spectral estimator is a signal processing based on FFT for generating the frequency spectrum of a signal.

  2. 2.

    Common-mode rejection ratio is a measure of differential amplifier’s ability to reject an undesired signal (noise) that is common to both inverting and non-inverting 180° out-of-phase input terminals.

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Author information

Authors and Affiliations

  1. Texas A&M University, College Station, TX, USA

    Cam Nguyen

  2. School of Engineering Information and Communications University, Daejeon, South Korea

    Seoktae Kim

Authors
  1. Cam Nguyen
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  2. Seoktae Kim
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Correspondence to Cam Nguyen .

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© 2012 Springer Science+Business Media, LLC

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Nguyen, C., Kim, S. (2012). Double-Channel Homodyne Interferometric Sensor. In: Theory, Analysis and Design of RF Interferometric Sensors. SpringerBriefs in Physics. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2023-1_4

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  • DOI: https://doi.org/10.1007/978-1-4614-2023-1_4

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-2022-4

  • Online ISBN: 978-1-4614-2023-1

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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