dc.contributor.author |
Abo El Naga, Hossam |
en |
dc.contributor.author |
Bouazza, A |
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dc.date.accessioned |
2012-03-14T22:23:47Z |
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dc.date.issued |
2011-02 |
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dc.identifier.citation |
GEOTECHNIQUE 61(10):875-885 01 Oct 2011 |
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dc.identifier.issn |
0016-8505 |
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dc.identifier.uri |
http://hdl.handle.net/2292/14387 |
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dc.description.abstract |
This paper presents the results of a study aimed at assessing the effects of temperature and thermal gradient on psychrometer readings, and at developing a calibration protocol that takes into account these effects. An intensive calibration programme was conducted at different temperatures (20-35 degrees C) and water potential levels (0.0 to similar to 7.0 MPa), for this purpose. The thermal gradient was expressed as the difference in temperature between wet and dry junctions in the thermocouple psychrometer sensor. The collected calibration data were used to build an artificial neural network psychrometer model. The developed model was able to simulate successfully the psychrometer output at different conditions, and was used to conduct a detailed parametric study to evaluate the influence of temperature and thermal gradient on thermocouple psychrometer measurements. The outcome of this study shows the importance of including the effects of temperature and thermal gradient in the standard calibration process. Moreover, it introduces a new, precise calibration protocol that takes advantage of the artificial neural network approach. |
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dc.language |
English |
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dc.publisher |
ICE Publishing |
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dc.relation.ispartofseries |
Geotechnique |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
Details obtained from http://www.sherpa.ac.uk/romeo/issn/0016-8505/ |
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dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
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dc.subject |
Science & Technology |
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dc.subject |
Technology |
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dc.subject |
Physical Sciences |
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dc.subject |
Engineering, Geological |
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dc.subject |
Geosciences, Multidisciplinary |
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dc.subject |
Engineering |
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dc.subject |
Geology |
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dc.subject |
monitoring |
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dc.subject |
neural networks |
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dc.subject |
partial saturation |
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dc.subject |
suction |
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dc.subject |
temperature effects |
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dc.subject |
GEOSYNTHETIC CLAY LINERS |
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dc.subject |
WATER-RETENTION |
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dc.subject |
TOTAL SUCTION |
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dc.subject |
HYGROMETERS |
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dc.subject |
ERRORS |
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dc.subject |
GEOTEXTILES |
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dc.subject |
TESTS |
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dc.subject |
SOILS |
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dc.subject |
MODEL |
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dc.title |
Effects of temperature and thermal gradient on thermocouple psychrometer measurements |
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dc.type |
Journal Article |
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dc.identifier.doi |
10.1680/geot.9.p.102 |
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pubs.issue |
10 |
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pubs.begin-page |
875 |
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pubs.volume |
61 |
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dc.rights.holder |
Copyright: ICE Publishing |
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pubs.author-url |
http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.p.102 |
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pubs.end-page |
885 |
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dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
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pubs.subtype |
Article |
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pubs.elements-id |
299197 |
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dc.identifier.eissn |
1751-7656 |
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pubs.record-created-at-source-date |
2012-03-15 |
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