公开(公告)号：WO2014014778A3

公开(公告)日：2014-01-23

申请号：PCT/US2013/050311

申请日：2013-07-12

Applicant: MILLAR INSTRUMENTS

Inventor： MILLAR, Huntly, D. ,  THORNTON, Richard, T. ,  PAULY, Robert, L.

IPC: G01L1/22 ,  G01K7/20 ,  G01K13/00

Abstract: A method for determining a value of a parameter of an object or an environment includes positioning a device having a balanced circuit in or on an object or within a particular environment, wherein the balanced circuit comprises elements which are operationally sensitive to changes in a parameter of the object or the environment. The method further includes measuring a common mode signal of the balanced circuit and determining, from the common mode signal, a value of the parameter. An exemplary implementation of the method includes determining temperature using a resistive sensor having a Wheatstone bridge circuit with two variable resistors and two fixed resistors. Embodiments of systems and devices configured to employ such methods are provided, particularly medical probes, electronic signal monitoring devices, and systems employing such devices.