University of Oulu

Petri Österberg, Martti Heinonen, Maija Ojanen-Saloranta, Anssi Mäkynen, Comparison of the performance of a microwave based and an NMR-based biomaterial moisture measurement instrument, Acta IMEKO, vol. 5, no. 4, article 14, December 2016, identifier: IMEKO-ACTA-05 (2016)-04-14 DOI: 10.21014/acta_imeko.v5i4.391

Comparison of the performance of a microwave-based and an NMR-based biomaterial moisture measurement instrument

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Author: Österberg, Petri1,2; Heinonen, Martti3; Ojanen-Saloranta, Maija3;
Organizations: 1University of Oulu / CEMIS-Oulu, Kehrämöntie 7, FI-87400 Kajaani, Finland
2Kajaani University of Applied Sciences, Kuntokatu 5,, FI-87101, Kajaani, Finland
3VTT Technical Research Centre of Finland Ltd, Centre for Metrology MIKES, Tekniikantie 1, 02150 Espoo, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: International Measurement Confederation, 2016
Publish Date: 2017-01-11


This article compares the performance of an NMR-based and a microwave-based moisture measurement instrument designed for biomaterials. The conventional moisture measurement method, Loss-on-Drying, serves as a reference measurement for both instruments. Six different biomaterials at three moisture content levels were measured with the microwave instrument and five biomaterials were measured with the NMR instrument. After instrument calibrations, the difference and variation of the measurement results for parallel samples and the repeatability of measurement results obtained by the NMR and microwave instruments were estimated. Reasonable agreement between the measurement methods was achieved.

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Series: Acta IMEKO
ISSN: 0237-028X
ISSN-E: 2221-870X
ISSN-L: 0237-028X
Volume: 5
Issue: 4
Pages: 88 - 99
DOI: 10.21014/acta_imeko.v5i4.391
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was funded by the research grant from the European Metrology Research Programme (EMRP-REG). The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union
Copyright information: © 2016 IMEKO. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited