METHOD FOR DETECTING AND OBTAINING INFORMATION ABOUT CHANGERS IN VARIABLES
摘要
An elongate sensor for detecting and locating presence of a liquid, e.g. water or a hydrocarbon. The sensor includes first and second elongate members which are spaced apart from each other and each of which is a metal conductor covered by a conductive polymer; a third, insulated elongate conductor; and an elongate insulating core. At least one of the elongate members is helically wrapped around the core. Presence of the liquid at any point along the length of the sensor causes the first and second members to be electrically connected at that point, creating a system in which the potential drop down one of the members can be measured and the location of the connection determined.
申请公布号
US5235286(A)
申请公布日期
1993.08.10
申请号
US19910698012
申请日期
1991.05.09
申请人
RAYCHEM CORPORATION
发明人
MASIA, MICHAEL;REED, JAMES P.;WASLEY, ROBERT S.;REEDER, LARRY R.;BROOKS, PETER L.;TOLLES, THOMAS W.;FRANK, LOUIS M.;BONOMI, MAURO;STEWART, RAY F.;LAHLOUGH, JOHN;WELSH, LAWRENCE