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Lundström, Hans
Publications (3 of 3) Show all publications
Lundström, H. (2015). Improving long-term stability of hot-wire anemometer sensors by means of annealing. Review of Scientific Instruments, 86(8), Article ID 086104.
Open this publication in new window or tab >>Improving long-term stability of hot-wire anemometer sensors by means of annealing
2015 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 86, no 8, article id 086104Article in journal (Refereed) Published
Abstract [en]

Annealing procedures for hot-wire sensors of platinum and platinum-plated tungsten have been investigated experimentally. It was discovered that the two investigated sensor metals behave quite differently during the annealing process, but for both types annealing may improve long-term stability considerably. Measured drift of sensors both without and with prior annealing is presented. Suggestions for suitable annealing temperatures and times are given. 

Keywords
Anemometers, Platinum, Annealing procedures, Annealing process, Annealing temperatures, Hot wire anemometers, Hot wire sensors, Long term stability, Annealing
National Category
Other Materials Engineering
Identifiers
urn:nbn:se:hig:diva-20224 (URN)10.1063/1.4929375 (DOI)000360648800078 ()26329244 (PubMedID)2-s2.0-84940118463 (Scopus ID)
Available from: 2015-09-09 Created: 2015-09-09 Last updated: 2018-03-13Bibliographically approved
Sandberg, M., Lundström, H., Nilsson, H. & Stymne, H. (2008). Experimental methods in ventilation. Advances in building energy research, 2, 159-210
Open this publication in new window or tab >>Experimental methods in ventilation
2008 (English)In: Advances in building energy research, ISSN 1751-2549, Vol. 2, p. 159-210Article in journal (Refereed) Published
Place, publisher, year, edition, pages
London ; Sterling, VA: Earthscan, 2008
Keywords
ventilation, thermal comfort, measurement techniques, temperature, velocity, tracer gas
Identifiers
urn:nbn:se:hig:diva-2020 (URN)10.3763/aber.2008.0206 (DOI)9781844073894 (ISBN)
Available from: 2008-06-18 Created: 2008-06-18 Last updated: 2018-03-13Bibliographically approved
Lundström, H., Sandberg, M. & Moshfegh, B. (2007). Temperature dependence of convective heat transfer from fine wires in air: a comprehensive experimental investigation with application to temperature compensation in hot-wire anemometry. Experimental Thermal and Fluid Science, 32(2), 649-657
Open this publication in new window or tab >>Temperature dependence of convective heat transfer from fine wires in air: a comprehensive experimental investigation with application to temperature compensation in hot-wire anemometry
2007 (English)In: Experimental Thermal and Fluid Science, ISSN 0894-1777, E-ISSN 1879-2286, Vol. 32, no 2, p. 649-657Article in journal (Refereed) Published
Abstract [en]

Heat transfer from a fine wire to air has been experimentally investigated. High accuracy measurements, where both the air temperature and wire temperature have been varied systematically and independently have made it possible to map the behavior of the heat transfer process for different velocities, air temperatures, and wire temperatures. Based on these results a compensation method is proposed which makes it possible to temperature compensate hot wires of large aspect ratio and at low Reynolds numbers for anemometry measurements with velocity calibration only at one air temperature.

Keywords
Heat transfer; Hot wire; Low velocity; Temperature compensation
National Category
Energy Systems
Identifiers
urn:nbn:se:hig:diva-902 (URN)10.1016/j.expthermflusci.2007.08.002 (DOI)000251758600031 ()2-s2.0-35748959343 (Scopus ID)
Available from: 2008-05-30 Created: 2008-05-30 Last updated: 2018-03-13Bibliographically approved
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