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A thermally stable tension meter for atmospheric soundings using kites

By R. G. Harrison and K. T. Walesby

Abstract

Kites offer considerable potential as wind speed sensors—a role distinct from their traditional use\ud as instrument-carrying platforms. In the sensor role, wind speed is measured by kite-line tension. A\ud kite tether line tension meter is described here, using strain gauges mounted on an aluminum ring\ud in a Wheatstone bridge electronic circuit. It exhibits a linear response to tension 19.5 mV N−1\ud with good thermal stability mean drift of −0.18 N °C−1 over 5–45 °C temperature range and a\ud rapid time response 0.2 s or better. Field comparisons of tether line tension for a Rokkaku kite with\ud a fixed tower sonic anemometer show an approximately linear tension-wind speed relationship over\ud the range 1–6 ms−1. © 2010 American Institute of Physics. doi:10.1063/1.346556

Publisher: AIP
Year: 2010
DOI identifier: 10.1063/1.3465560
OAI identifier: oai:centaur.reading.ac.uk:6113

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