Flow measurement by "Doppler shift" nuclear magnetic resonance

Zhiyue Wang; John S. Leigh

doi:10.1063/1.455842

Flow measurement by "Doppler shift" nuclear magnetic resonance

Zhiyue Wang, John S. Leigh

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A nuclear magnetic resonance (NMR) 1D flow measurement technique is described and demonstrated experimentally. The technique uses a "meander coil" in the NMR probe for the radio frequency (rf) excitation and detection. The meander coil gives rise to highly inhomogeneous B₁ field, whose direction varies linearly as a function of spatial coordinates. The detected NMR signal acquires a frequency shift which is proportional to the speed of the nuclear spin. In a sense, this frequency shift is similar to the Doppler shift. The flow speed can be measured by one free induction decay (FID) without applying B₀ field gradient.

Original language	English (US)
Pages (from-to)	3396-3398
Number of pages	3
Journal	The Journal of Chemical Physics
Volume	90
Issue number	6
DOIs	https://doi.org/10.1063/1.455842
State	Published - 1989

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.455842

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abstract = "A nuclear magnetic resonance (NMR) 1D flow measurement technique is described and demonstrated experimentally. The technique uses a {"}meander coil{"} in the NMR probe for the radio frequency (rf) excitation and detection. The meander coil gives rise to highly inhomogeneous B1 field, whose direction varies linearly as a function of spatial coordinates. The detected NMR signal acquires a frequency shift which is proportional to the speed of the nuclear spin. In a sense, this frequency shift is similar to the Doppler shift. The flow speed can be measured by one free induction decay (FID) without applying B0 field gradient.",

author = "Zhiyue Wang and Leigh, {John S.}",

year = "1989",

doi = "10.1063/1.455842",

language = "English (US)",

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AU - Wang, Zhiyue

AU - Leigh, John S.

PY - 1989

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N2 - A nuclear magnetic resonance (NMR) 1D flow measurement technique is described and demonstrated experimentally. The technique uses a "meander coil" in the NMR probe for the radio frequency (rf) excitation and detection. The meander coil gives rise to highly inhomogeneous B1 field, whose direction varies linearly as a function of spatial coordinates. The detected NMR signal acquires a frequency shift which is proportional to the speed of the nuclear spin. In a sense, this frequency shift is similar to the Doppler shift. The flow speed can be measured by one free induction decay (FID) without applying B0 field gradient.

AB - A nuclear magnetic resonance (NMR) 1D flow measurement technique is described and demonstrated experimentally. The technique uses a "meander coil" in the NMR probe for the radio frequency (rf) excitation and detection. The meander coil gives rise to highly inhomogeneous B1 field, whose direction varies linearly as a function of spatial coordinates. The detected NMR signal acquires a frequency shift which is proportional to the speed of the nuclear spin. In a sense, this frequency shift is similar to the Doppler shift. The flow speed can be measured by one free induction decay (FID) without applying B0 field gradient.

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JF - The Journal of Chemical Physics

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Flow measurement by "Doppler shift" nuclear magnetic resonance

Abstract

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