Method and apparatus for varying adaptively pulse interval in NMR-based water content measurement

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United States of America Patent

PATENT NO 8823377
APP PUB NO 20130147482A1
SERIAL NO

13818823

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Abstract

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The invention relates to a NMR method for determining moisture content of a sample, in which method a sample is subjected to a magnetic DC-field, the sample under magnetic DC-field is subjected to a sequence of excitation pulses in RF-frequency with pulse interval for exciting hydrogen nuclei, and NMR signal of the excited hydrogen nuclei is measured. In accordance with the invention spin-lattice relaxation time is estimated for the sample, and pulse interval is adjusted longer than the estimated spin-lattice relaxation time.

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Patent Owner(s)

  • METSO AUTOMATION OY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Viitanen, Veli-Pekka Huhmari, FI 7 95
Virtanen, Sami Espoo, FI 45 680

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