<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lange, P. A.</style></author><author><style face="normal" font="default" size="100%">Bernd Jähne</style></author><author><style face="normal" font="default" size="100%">Tschiersch, J.</style></author><author><style face="normal" font="default" size="100%">Johann Ilmberger</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Comparison between an amplitude-measuring wire and a slope-measuring laser water wave gauge</style></title><secondary-title><style face="normal" font="default" size="100%">Rev. Sci. Instrum.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1982</style></year></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">53</style></volume><pages><style face="normal" font="default" size="100%">651--655</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Capillary waves produced in a laboratory wind wave tunnel have been measured using a wire resistance-type gauge (measuring wave amplitude) and a laser gauge (measuring wave slope). Comparison of power spectra of the gauges shows good agreement to 80 Hz, which is the upper frequency limit of the wire gauge. The upper frequency limit of the laser gauge depends upon laser beam diameter and is about 300 Hz.</style></abstract></record></records></xml>