公开(公告)号：WO2014014778A2

公开(公告)日：2014-01-23

申请号：PCT/US2013050311

申请日：2013-07-12

Applicant: MILLAR INSTRUMENTS

Inventor： MILLAR HUNTLY D ,  THORNTON RICHARD T ,  PAULY ROBERT L

IPC: G01K7/20 ,  G01K13/00 ,  G01N27/04

CPC classification number: G01R17/10 ,  A61B5/1073 ,  A61B5/11 ,  A61B5/14539 ,  A61B5/14542 ,  A61B2562/0247 ,  A61B2562/0271 ,  A61B2562/029 ,  G01K7/20 ,  G01K13/002 ,  G01L1/2262 ,  G01L1/2281 ,  G01L9/045 ,  G01L9/065

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.

Abstract translation: 一种用于确定对象或环境的参数的值的方法包括将具有平衡电路的设备定位在对象内或在特定环境中，其中平衡电路包括对操作上对参数变化的操作敏感的元件 对象或环境。 该方法还包括测量平衡电路的共模信号，并从共模信号确定该参数的值。 该方法的示例性实现包括使用具有带有两个可变电阻器和两个固定电阻器的惠斯通电桥电路的电阻式传感器来确定温度。 提供了被配置为采用这种方法的系统和装置的实施例，特别是医疗探针，电子信号监测装置和采用这种装置的系统。