Patent ID: 7193931
Filing Date: 2007-03-20
Classification: H04R

Abstract:
1. A system for measurement of the value of a parameter at a plurality of spaced locations and for transmitting electrical signals commensurate with said parameter value to a position remote from said spaced locations, said system comprising: a) an elongated member having an insulated conductor and a coaxial cable extending therein; b) a plurality of sensing elements positioned in spaced relation along said elongated member with at least one of said sensor elements at each of said spaced locations, to generate electrical signals commensurate with said parameter value; c) an electrical power source to which said a first end of said insulated conductor is in electrical communication; and d) means for inductively coupling said power source to said sensing elements to provide electrical power for operation of said sensing elements; e) a control element for selective generation of electrical signals representing data to which said sensing elements are responsive; and f) wherein said electrical signals are communicated to said sensing elements over said coaxial cable.