COOLING FOR INDUSTRIAL PROCESS VARIABLE TRANSMITTERS
    92.
    发明申请
    COOLING FOR INDUSTRIAL PROCESS VARIABLE TRANSMITTERS 有权
    工业过程可变发电机冷却

    公开(公告)号:US20160084725A1

    公开(公告)日:2016-03-24

    申请号:US14493679

    申请日:2014-09-23

    Applicant: Rosemount Inc.

    Abstract: A pressure transmitter assembly for measuring a process pressure of an industrial process includes a pressure sensor configured to sense the process pressure. A process coupling couples the pressure sensor to the industrial process. In one example configuration, a phase change material carried in the process coupling is configured to reduce heat transfer from the industrial process to the process variable sensor by changing phase in response to heat from the industrial process. In another example configuration, a thermocouple electric cooling element is coupled to the process coupling and configured to conduct heat away from the coupling in response to an applied electric current.

    Abstract translation: 用于测量工业过程的过程压力的压力变送器组件包括被配置为感测过程压力的压力传感器。 过程联接将压力传感器耦合到工业过程。 在一个示例性配置中,在过程耦合中携带的相变材料被配置为通过响应于来自工业过程的热而改变相位来减少从工业过程到过程变量传感器的热传递。 在另一示例性配置中,热电偶电冷却元件耦合到过程耦合并且被配置为响应于施加的电流将热量从耦合传导离开。

    Process variable transmitter with EMF detection and correction
    93.
    发明授权
    Process variable transmitter with EMF detection and correction 有权
    具有EMF检测和校正功能的过程变量变送器

    公开(公告)号:US09207129B2

    公开(公告)日:2015-12-08

    申请号:US13629127

    申请日:2012-09-27

    Applicant: Rosemount Inc.

    Inventor: Jason H. Rud

    CPC classification number: G01K7/20 G01K7/021

    Abstract: A preexisting voltage across a sensor is latched to a storage capacitor prior to any excitation current being applied to the sensor. Once the excitation current is applied, the voltage on the storage capacitor is directly subtracted from a differential voltage across the sensor. The subtraction is done before a measurement is converted to a digital value and passed to a transmitter. The subtraction is performed in hardware, and a time required to sample and hold the preexisting voltage across the storage capacitor is within a settling time used for collecting any sensor measurements.

    Abstract translation: 在任何激励电流施加到传感器之前,传感器上的预先存在的电压被锁存到存储电容器。 一旦施加了激励电流,就会从传感器上的差分电压直接减去存储电容上的电压。 在将测量值转换为数字值并传送到发射机之前进行减法。 减法在硬件中执行,并且在存储电容器之间采样和保持预先存在的电压所需的时间在用于收集任何传感器测量值的建立时间内。

    Channel grey listing
    94.
    发明授权
    Channel grey listing 有权
    频道灰色列表

    公开(公告)号:US09191063B2

    公开(公告)日:2015-11-17

    申请号:US13796222

    申请日:2013-03-12

    Applicant: Rosemount Inc.

    CPC classification number: H04B1/713 H04B1/715 H04B2001/7154

    Abstract: A wireless communication system grey-lists those channels that interfere with channels used by a second wireless communication system. The wireless communication system reduces the rate at which the grey-listed channels are utilized in the channel-hopping pattern, but does not completely eliminate use of the grey-listed channels.

    Abstract translation: 无线通信系统灰色列出干扰第二无线通信系统使用的信道的那些信道。 无线通信系统降低了在信道跳频模式中使用灰色列表信道的速率,但是并不完全消除对灰色列表信道的使用。

    Thermowell insert
    95.
    发明授权
    Thermowell insert 有权
    热套管插头

    公开(公告)号:US09188490B2

    公开(公告)日:2015-11-17

    申请号:US13795969

    申请日:2013-03-12

    Applicant: Rosemount Inc.

    CPC classification number: G01K1/14 G01K13/02

    Abstract: A temperature sensing system comprises a thermowell, a sensor, and a solid insert. The thermowell extends into a sensing region of a fluid flow. The sensor has a probe housed in the thermowell to sense a temperature in the sensing region. The solid insert is configured to removably support the probe within the thermowell and to provide a thermal contact between the thermowell and the probe.

    Abstract translation: 温度感测系统包括热套管,传感器和实心插入件。 热套管延伸到流体流动的感测区域。 传感器具有容纳在热电偶套管中的探针,以感测感测区域中的温度。 固体插入物构造成可移除地支撑热套管内的探针并且在热套管和探针之间提供热接触。

    ANOMALY FLUID DETECTION
    96.
    发明申请
    ANOMALY FLUID DETECTION 有权
    异常流体检测

    公开(公告)号:US20150323357A1

    公开(公告)日:2015-11-12

    申请号:US14493699

    申请日:2014-09-23

    Applicant: Rosemount Inc.

    Abstract: A flowmeter includes a process sensor assembly providing a sensor signal and a filter stage comprising a low pass filter and a high pass filter and providing a filtered signal from the sensor signal. A processor determines that a filtered signal is indicative of a low flow condition for a first fluid, alters at least one parameter of the low pass filter and at least one parameter of the high pass filter in response to the low flow condition such that the filter stage provides a new filtered signal, determines that the new filtered signal is not indicative of a low flow condition for a second fluid and generates an alarm in response to the new filtered signal not being indicative of a low flow condition for the second fluid.

    Abstract translation: 流量计包括提供传感器信号的过程传感器组件和包括低通滤波器和高通滤波器并且从传感器信号提供滤波信号的滤波器级。 处理器确定滤波后的信号指示第一流体的低流量条件,响应于低流量条件改变低通滤波器的至少一个参数和高通滤波器的至少一个参数,使得滤波器 阶段提供新的滤波信号,确定新的滤波信号不指示第二流体的低流量条件,并且响应于新的滤波信号而不是指示第二流体的低流量条件而产生报警。

    Industrial process field device with low power optical isolator
    97.
    发明授权
    Industrial process field device with low power optical isolator 有权
    具有低功率光隔离器的工业过程现场设备

    公开(公告)号:US09175993B2

    公开(公告)日:2015-11-03

    申请号:US14038117

    申请日:2013-09-26

    Applicant: Rosemount Inc.

    Abstract: An industrial process control field device includes a process variable transducer configured to sense or control a process variable. Field device circuitry is configured to couple to the process variable transducer and communicate information related to the process variable to another location. The field device circuitry includes an optical isolator having transmit circuitry on a first side of a galvanic isolation configured to transmit an optical signal which is pulsed on and off across the isolation. Receive circuitry is located on a second side of galvanic isolation and configured to receive the optical signal with an optical sensor. The optical sensor enters an “on” state when it receives a pulse and is otherwise in an “off” state. The receive circuitry provides a secondary side output based upon the received optical signal. The receive circuitry enters in a low power state when the optical sensor is in the “off” state.

    Abstract translation: 工业过程控制现场设备包括被配置为感测或控制过程变量的过程变量变换器。 现场设备电路被配置为耦合到过程变量传感器并将与过程变量相关的信息传递到另一位置。 现场设备电路包括光隔离器,其具有在电隔离器的第一侧上的发射电路,其被配置为传输跨越隔离物脉冲通过和关闭的光信号。 接收电路位于电隔离的第二侧,并被配置为用光学传感器接收光信号。 当光学传感器接收到脉冲并处于“关闭”状态时,该光学传感器进入“接通”状态。 接收电路基于所接收的光信号提供次级侧输出。 当光学传感器处于“关闭”状态时,接收电路进入低功率状态。

    Magnetic flowmeter with drive signal diagnostics
    98.
    发明授权
    Magnetic flowmeter with drive signal diagnostics 有权
    具有驱动信号诊断功能的磁力流量计

    公开(公告)号:US09163968B2

    公开(公告)日:2015-10-20

    申请号:US14038065

    申请日:2013-09-26

    Applicant: Rosemount Inc.

    Abstract: A magnetic flowmeter includes a flowtube arranged to receive a flow of process fluid. A coil is positioned proximate the flowtube and arranged to apply a magnetic field to the process fluid in response to a drive current alternating direction. First and second electrodes are arranged to sense a voltage potential in the process fluid in response to the applied magnetic field. The voltage potential is indicative of flow rate of process fluid through the flowtube. A sensor is coupled to the first and second current paths which has a sensor output related to the drive current. Diagnostic circuitry provides a diagnostic output as a function of a transient change in the sensor output when current flowing through the coil alternates direction.

    Abstract translation: 磁流量计包括布置成接收工艺流体流的流管。 线圈被定位在流管附近,并且布置成响应于驱动电流交替方向向过程流体施加磁场。 第一和第二电极布置成响应于所施加的磁场感测过程流体中的电压电位。 电压电位表示通过流量管的工艺流体的流量。 传感器耦合到具有与驱动电流相关的传感器输出的第一和第二电流路径。 当电流流过线圈交替方向时,诊断电路提供诊断输出作为传感器输出瞬态变化的函数。

    High pressure fluid coupling
    99.
    发明授权
    High pressure fluid coupling 有权
    高压流体联轴器

    公开(公告)号:US09157824B2

    公开(公告)日:2015-10-13

    申请号:US13630641

    申请日:2012-09-28

    Applicant: Rosemount Inc.

    CPC classification number: G01L19/0007 F16L19/0206 F16L19/07

    Abstract: A process fluid pressure sensing system includes a process fluid pressure transmitter and a process manifold. The process fluid pressure transmitter has first and second pressure inlets and is configured to obtain a measurement relative to pressures applied at the first and second pressure inlets and provide a process variable output based on the measurement. The process manifold is operably coupled to a process fluid and has first and second pressure outlets. A first high-pressure coupling joins the first pressure outlet of the process manifold to the first pressure inlet of the process fluid pressure transmitter. A second high-pressure coupling joins the second pressure outlet of the process manifold to the second pressure inlet of the process fluid pressure transmitter. The first and second high-pressure fluid couplings are configured to accommodate misalignment between the respective pressure outlets and inlets.

    Abstract translation: 过程流体压力感测系统包括过程流体压力变送器和过程歧管。 过程流体压力变送器具有第一和第二压力入口并且被配置为获得相对于在第一和第二压力入口处施加的压力的测量值,并且基于测量提供过程变量输出。 工艺歧管可操作地连接到工艺流体并且具有第一和第二压力出口。 第一高压联接器将过程歧管的第一压力出口连接到过程流体压力变送器的第一压力入口。 第二高压联接器将过程歧管的第二压力出口连接到过程流体压力变送器的第二压力入口。 第一和第二高压流体联接器构造成适应相应压力出口和入口之间的不对准。

    HIGH PRESSURE WAFER STYLE MAGNETIC FLOWMETER
    100.
    发明申请
    HIGH PRESSURE WAFER STYLE MAGNETIC FLOWMETER 有权
    高压滚筒式磁流量计

    公开(公告)号:US20150276444A1

    公开(公告)日:2015-10-01

    申请号:US14226327

    申请日:2014-03-26

    Applicant: Rosemount Inc.

    CPC classification number: G01F1/584 G01F1/58 G01F1/586 G01F15/185

    Abstract: A wafer-type electromagnetic flow sensor includes a single-piece chassis having a pair of faces and a flow conduit extending between the pair of faces. Each face of the chasses includes a feature configured to engage a metal sealing ring. A non-conductive liner is disposed in the flow conduit of the single-piece chassis. A plurality of electromagnetic coils is configured to generate a flux into process fluid flowing through the flow conduit. A pair of electrodes is configured to electrically couple to the process fluid. A feedthrough assembly is configured to maintain process fluid pressure while allowing a plurality of electrical conductors to pass therethrough.

    Abstract translation: 晶片型电磁流量传感器包括具有一对面的一体式底盘和在该对面之间延伸的流动导管。 所述笛子的每个面包括构造成接合金属密封环的特征。 非导电衬套设置在单件底盘的流动管道中。 多个电磁线圈被配置为产生流过流动管道的过程流体中的通量。 一对电极被配置为电耦合到工艺流体。 馈通组件被配置为保持过程流体压力,同时允许多个电导体通过。

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