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公开(公告)号：EP0090167A3
公开(公告)日：1984-08-29
申请号：EP83101517
申请日：1983-02-17
Applicant: The Foxboro Company
Inventor： Gilby, Anthony C. , Lewis, Edward L. , Olsen, Everett O.
Abstract: An instrumentation system for use in measuring and processing industrial process variables, such as flow, pressure, or temperature, includes a resonant element sensor whose resonant frequency varies in accordance with changes in the desired process variable communicating through an optical fiber link to a distant control room. The sensor is activated into resonant physical motion by light energy from a source in the control room, while the motion of the wire is sensed optically and retransmitted to the control room to produce an output signal whose frequency is equal to that of the resonating element. A feedback network maintains the sensor in resonance by synchronizing the delivery of light energy to the motion of the resonant element. The powering and sensing aspect may be performed by individual fiber optic cables or alternatively this function may be combined by utilizing a single fiber optic strand.
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公开(公告)号：EP0552529A1
公开(公告)日：1993-07-28
申请号：EP92300611.8
申请日：1992-01-24
Applicant: THE FOXBORO COMPANY
Inventor： Annino, Raymond , Lewis, Edward L. , Lueck, Dale E. , Phillips, Matthew L. , Villalobos, Richard
CPC classification number: G01N30/20 , G01N30/6047 , G01N30/88 , G01N2030/204 , G01N2030/3084 , G01N2030/8881
Abstract: A gas chromatography device for separating sample fluids from carrier fluids and analyzing the sample is configured so that it is a modular unit. This modularity enables repairs to be quickly effected on the unit and also greatly simplifies the task of accessing the components of the chromatography cartridge. The modular chromatography cartridge (10) is comprised of separation columns (25, 27, 29) for separating the sample fluid from the carrier fluid. The cartridge (10) additionally includes detectors (28) for detecting distinguishing characteristics of fluids exiting the column, and preferably includes valve assemblies (32, 34) for directing the flow of the carrier fluid and sample fluid throughout the cartridge (10) and restrictors (36) for adjusting the flow rate of the fluids as they flow through the cartridge. All of the components of the cartridge are configured upon a manifold (26). The manifold has a means for attaching the cartridge to fluid sources and support structure.
Abstract translation: 用于从载体流体分离样品流体和分析样品的气相色谱装置被配置为使其为模块化单元。 这种模块化使得能够在单元上快速实现修理，并且还极大地简化了访问色谱柱组件的任务。 模块化色谱柱（10）由用于将样品流体与载体流体分离的分离柱（25,27,29）组成。 墨盒（10）还包括用于检测离开色谱柱的流体的区别特性的检测器（28），并且优选地包括用于引导载体流体和样品流体流过整个药筒（10）和限流器的阀组件（32,34） （36），用于当流体流过所述盒时调节流体的流速。 墨盒的所有部件都配置在歧管（26）上。 歧管具有将筒附接到流体源和支撑结构的装置。
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公开(公告)号：EP0090167A2
公开(公告)日：1983-10-05
申请号：EP83101517.7
申请日：1983-02-17
Applicant: THE FOXBORO COMPANY
Inventor： Gilby, Anthony C. , Lewis, Edward L. , Olsen, Everett O.
Abstract: An instrumentation system for use in measuring and processing industrial process variables, such as flow, pressure, or temperature, includes a resonant element sensor whose resonant frequency varies in accordance with changes in the desired process variable communicating through an optical fiber link to a distant control room. The sensor is activated into resonant physical motion by light energy from a source in the control room, while the motion of the wire is sensed optically and retransmitted to the control room to produce an output signal whose frequency is equal to that of the resonating element. A feedback network maintains the sensor in resonance by synchronizing the delivery of light energy to the motion of the resonant element. The powering and sensing aspect may be performed by individual fiber optic cables or alternatively this function may be combined by utilizing a single fiber optic strand.
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