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    PRESSURE TRANSMITTER LONG-TERM DRIFT DETECTION AND CORRECTION
    1.
    发明公开
    PRESSURE TRANSMITTER LONG-TERM DRIFT DETECTION AND CORRECTION 审中-公开

    公开(公告)号：US20240344913A1

    公开(公告)日：2024-10-17

    申请号：US18134762

    申请日：2023-04-14

    申请人： Honeywell International Inc.

    发明人： Wang Yang

    IPC分类号： G01L19/08

    CPC分类号： G01L19/08

    摘要： A pressure transmitter and a method for enhancing the performance of the pressure transmitter, can involve obtaining pressure values from a pressure transmitter during a period of time in which pressure is not present in the process of a process control system, determining a long-term drift based on the obtained pressure values during the period of time in which pressure is not present in the process, and correcting the long-term drift by offsetting the amount of pressure measurement by the pressure transmitter to improve the measurement accuracy of the pressure transmitter. The long-term drift can be further determined with temperature measurements made by the pressure transmitter. In addition, a zero correction function may be performed to remove drift.

    PRESSURE GAUGE
    4.
    发明申请
    PRESSURE GAUGE 有权

    公开(公告)号：US20180073947A1

    公开(公告)日：2018-03-15

    申请号：US15564452

    申请日：2016-04-15

    申请人： PROSPINE Co., Ltd. ,  OKADA KEIKI MFG CO., LTD.

    发明人： Hidetoshi KONNO ,  Manabu OONUMA ,  Nobutaka OKADA

    IPC分类号： G01L7/04 ,  G01L19/08 ,  G01D5/12

    CPC分类号： G01D7/04 ,  G01D5/125 ,  G01L7/04 ,  G01L19/08

    摘要： A Bourdon tube pressure gauge includes: a Bourdon tube; a rotary piece rotatably attached to a first shaft arranged near a tip of the Bourdon tube; a pointer including a second shaft arranged on a side facing an outer periphery of the fan-shaped portion of the rotary piece; a first permanent magnet provided on an outer peripheral surface side of a fan-shaped portion of the rotary piece; a second permanent magnet provided at the second shaft. An outer peripheral surface of the first permanent magnet and an outer peripheral surface of the second permanent magnet each has N pole and S pole alternately magnetized at equal pitches. A magnetic member configured to relax force by which the second permanent magnet is attracted to the first permanent magnet is provided across the second permanent magnet from the first permanent magnet.

    Smartphone operated air pressure meter and system
    5.
    发明授权
    Smartphone operated air pressure meter and system 有权

    公开(公告)号：US09816844B2

    公开(公告)日：2017-11-14

    申请号：US14680670

    申请日：2015-04-07

    申请人： Scott Madden

    发明人： Scott Madden

    IPC分类号： G01L7/00 ,  G01F1/00 ,  G01L19/08 ,  G01F1/34

    CPC分类号： G01F1/00 ,  G01F1/34 ,  G01L7/00 ,  G01L19/08 ,  G01L19/083

    摘要： A smartphone-operated air pressure meter and system includes an air pressure meter having a pair of input channels that are each connected to a pressure chamber and pressure sensor. A control unit is included with the pressure meter for receiving air pressure data and for transmitting the same. The system also includes an airflow balancing application that generates one or more application icons, and calculates airflow information. The airflow information can include the received pressure data alone, or pressure data that has been applied to a mathematical algorithm, along with environmental data.

    METHOD AND SYSTEM FOR A SAMPLE FILTER VISUAL CONTAMINATION CHECK
    8.
    发明申请
    METHOD AND SYSTEM FOR A SAMPLE FILTER VISUAL CONTAMINATION CHECK 审中-公开

    公开(公告)号：US20170160159A1

    公开(公告)日：2017-06-08

    申请号：US14959680

    申请日：2015-12-04

    申请人： General Electric Company

    发明人： Jeffrey Dale Richey ,  Joshua Daniel Brown

    IPC分类号： G01L19/06 ,  G01L19/08 ,  G01L23/26 ,  G01M15/14

    CPC分类号： G01L19/0636 ,  G01L15/00 ,  G01L19/08 ,  G01L23/26 ,  G01M15/14

    摘要： A multi-channel pressure measuring device includes a plurality of sample conduits and a plurality of sample inlets. Each sample inlet is configured to receive a respective sample conduit. The sample conduit is configured to channel a sample fluid and an incidental fluid through a respective sample inlet. The multi-channel pressure measuring device also includes a sample block including a plurality of collection wells coupled to the sample inlets. Each collection well includes a diameter larger than a diameter of a respective sample inlet. The sample block is fabricated from at least one of a transparent material and a translucent material. The multi-channel pressure measuring device further includes a plurality of filter indicator elements. Each filter indicator element is positioned within a respective collection well. Each filter indicator element is configured to retain the incidental fluid therewithin and to indicate a presence of the retained incidental fluid.

    HYDRAULIC SYSTEM SENSOR
    10.
    发明申请
    HYDRAULIC SYSTEM SENSOR 有权
    液压系统传感器

    公开(公告)号：US20160238489A1

    公开(公告)日：2016-08-18

    申请号：US15027057

    申请日：2014-10-02

    申请人： EATON CORPORATION

    发明人： Paul BRENNER ,  Hassan AL-ATAT ,  David MAKIS

    IPC分类号： G01M99/00 ,  G01L19/00 ,  G01K7/02

    CPC分类号： G01M99/005 ,  B66F9/07572 ,  F15B19/005 ,  F15B2211/6306 ,  F15B2211/6343 ,  G01D21/00 ,  G01K7/02 ,  G01K2013/026 ,  G01L1/246 ,  G01L19/0092 ,  G01L19/08 ,  H01L35/30 ,  H02N2/185

    摘要： A hydraulic system includes a hydraulic circuit and a sensor for sensing a characteristic of hydraulic fluid of the hydraulic circuit. An energy harvester is configured to harvest energy from the hydraulic circuit. A controller interfaces with the sensor and is powered at least in part by the energy harvester. Various types of sensors are employed, including pressure and temperature sensors. A battery may further be included for powering the controller in addition to the energy harvester.

    摘要翻译： 液压系统包括用于感测液压回路的液压流体的特性的液压回路和传感器。 能量收集器配置成从液压回路中收集能量。 控制器与传感器接口，至少部分由能量收集器供电。 采用各种类型的传感器，包括压力和温度传感器。 除了能量收集器之外，还可以包括用于为控制器供电的电池。