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公开(公告)号：WO2008042274A3
公开(公告)日：2008-05-29
申请号：PCT/US2007020970
申请日：2007-09-28
Applicant: ROSEMOUNT INC , ANDERSON WILLIAM T
Inventor： ANDERSON WILLIAM T
Abstract: A transmitter (10) senses flow of a process fluid in a process pipe. The process pipe (20) may include a flow restrictor (22) positioned therein that carries a primary flow of a process fluid. Impulse piping (30) is configured to carry a secondary flow of the process fluid from an upstream side of the flow restrictor to a downstream side. An electro-kinetic element (12) is positioned within the impulse piping (30) and is configured to generate an electro-kinetic potential related to the primary flow. Measurement circuitry in the transmitter (10) is configured to measure the electro-kinetic potential across the electro-kinetic element (12) and relate the electro-kinetic potential to the flow of process fluid through the process pipe (20).
Abstract translation: 变送器（10）感测过程管道中的过程流体的流动。 过程管道（20）可以包括限定器（22），该限流器（22）位于其内，承载过程流体的主流。 脉冲管道（30）构造成将过程流体的二次流从限流器的上游侧运送到下游侧。 电动元件（12）定位在脉冲管道（30）内并且被配置为产生与主流相关的电动势。 发射器（10）中的测量电路被配置成测量横跨电动元件（12）的电动势，并将电动势与通过工艺管（20）的工艺流体流相关联。
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公开(公告)号：DE10392997T5
公开(公告)日：2005-10-06
申请号：DE10392997
申请日：2003-07-31
Applicant: ROSEMOUNT INC
Inventor： ANDERSON WILLIAM T
Abstract: A capacitive sensor for sensing the thickness of an automobile brake pad is provided. The sensing capacitor includes a pair of parallel plates that are arranged such that brake pad wear reduces the size of one or both of the pads. The reduced size of the plate(s) is detectable as a change in capacitance between the plates. In on aspect a reference capacitor is also placed within the brake pad. The reference capacitor includes a pair of plates that do not change size during wear of the brake pad. The capacitance of the sensing capacitor can be compared to the capacitance of the reference capacitor for a more accurate indication of pad wear.
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公开(公告)号：AU2003257964A1
公开(公告)日：2004-02-25
申请号：AU2003257964
申请日：2003-07-31
Applicant: ROSEMOUNT INC
Inventor： ANDERSON WILLIAM T
Abstract: A capacitive sensor for sensing the thickness of an automobile brake pad is provided. The sensing capacitor includes a pair of parallel plates that are arranged such that brake pad wear reduces the size of one or both of the pads. The reduced size of the plate(s) is detectable as a change in capacitance between the plates. In on aspect a reference capacitor is also placed within the brake pad. The reference capacitor includes a pair of plates that do not change size during wear of the brake pad. The capacitance of the sensing capacitor can be compared to the capacitance of the reference capacitor for a more accurate indication of pad wear.
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公开(公告)号：DE112005003370T5
公开(公告)日：2007-12-13
申请号：DE112005003370
申请日：2005-12-02
Applicant: ROSEMOUNT INC
Inventor： ANDERSON WILLIAM T , STREI DAVID
Abstract: A large-scale MEMS device includes a MEMS die supported by at least one compliant die mount. The compliant die mount couples the MEMS die to a support structure. The support structure is positioned within a package. In accordance with an aspect of the invention, the package is substantially symmetrical about the MEMS die. In accordance with another aspect of the invention, the support structure and/or the package is designed to have a neutral bend axis along the MEMS die.
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