Corn Moisture Measurement Accuracy

dc.contributor.author Bern, Carl
dc.contributor.author Hurburgh, Charles
dc.contributor.author Bern, Carl
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T15:51:10.000
dc.date.accessioned 2020-06-29T22:39:32Z
dc.date.available 2020-06-29T22:39:32Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 1985
dc.date.embargo 2013-10-16
dc.date.issued 1985
dc.description.abstract <p>The four electronic moisture meters most commonly used by Iowa grain dealers were compared with the official United States Department of Agriculture (USDA) air-oven method on 881 samples of corn from the 1979 and 1980 harvests. Samples ranged in moisture from 11% to 38%, wet basis. With the manufacturer-developed calibrations used in 1979, all four brands gave biased readings with respect to the air-oven method. Calibration bias errors differed among brands and ranged from approximately 1.5% to -3.5% moisture content. A recalibration between the 1979 and 1980 harvests reduced both this bias and the discrepancy among meter brands. Random errors originated from three sources: the electrical properties of different samples (contributing about 85% of the total random error), the repeatability of a meter test on a specific sample (contributing about 10%, and the repeatability of the oven method on a specific sample (contributing about 5%. The coefficient of variation of a meter test with respect to the oven varied with moisture content and increased from a minimum of 2.5% to 15.5% moisture corn to a maximum of 4.5% at both 11% and 38% moisture corn.</p>
dc.description.comments <p>This article is from <em>Transactions of the ASAE</em> 28 (1985): 634–640. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/402/
dc.identifier.articleid 1687
dc.identifier.contextkey 4728265
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/402
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1165
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/402/1985_HurburghCR_CornMoistureMeasurement.pdf|||Sat Jan 15 00:07:59 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.title Corn Moisture Measurement Accuracy
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication cbd58252-88a0-4555-b546-3613f558583e
relation.isAuthorOfPublication 0544d4c0-b52e-42fa-8419-df2d08ad526b
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
File
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
1985_HurburghCR_CornMoistureMeasurement.pdf
Size:
1.18 MB
Format:
Adobe Portable Document Format
Description:
Collections