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1. 发明申请

US20060129724A1 Multi-protocol bus device 失效
公开(公告)号：US20060129724A1
公开(公告)日：2006-06-15
申请号：US11349911
申请日：2006-02-09
申请人： Vladimir Kostadinov
发明人： Vladimir Kostadinov
IPC分类号： G06F13/42
CPC分类号： H04L12/40032 , H04L29/06 , H04L69/18
摘要： In one general aspect, methods and devices for use with multiple communications protocols automatically determine which communications protocol to use when connected to a system bus. Signals transmitted on the system bus are monitored to determine what communications protocol the system bus is using. After determining which communications protocol the system is using, a compatible communications protocol is selected from one of several communications protocols stored in a device's memory. As a result, a user may connect a device to the system bus without having to determine which communications protocol is used by the system bus. Furthermore, suppliers may stock a single type of device that is compatible with multiple communications protocols reducing overhead associated with stocking devices. In addition, a device may be switched between systems without regard to the communications protocol of the device or system.

2. 发明申请

US20060047778A1 Peer-to-peer hosting of intelligent field devices 有权
公开(公告)号：US20060047778A1
公开(公告)日：2006-03-02
申请号：US11207816
申请日：2005-08-22
申请人： Lloyd Adams , Alexander Johnson
发明人： Lloyd Adams , Alexander Johnson
IPC分类号： G06F15/16
CPC分类号： H04L67/34 , G05B2219/25428 , G06F11/1464 , H04L67/125
摘要： Device configurations are stored in a system including at least two intelligent field devices (IFDs) connected by a communications connection. A configuration for a first IFD is stored in the first IFD, and a backup of the configuration for the first IFD is stored in at least one other IFD. Storing a configuration for the first IFD may include having the first IFD request a configuration from at least one other IFD using the communications connection, an IFD having a stored backup of the configuration for the first IFD transmitting the backup to the first IFD using the communications connection, and the first IFD receiving the transmitted backup and storing the received backup in the first IFD as the configuration for the first IFD. Storing a backup of the configuration for the first IFD may include having the first IFD transmit a backup of the configuration for the first IFD to at least one other IFD using the communications connection, and having the at least one other IFD receive and store the backup of the configuration.

3. 发明申请

US20050284237A1 Correcting for two-phase flow in a digital flowmeter 有权
标题翻译：纠正数字流量计中的两相流量
公开(公告)号：US20050284237A1
公开(公告)日：2005-12-29
申请号：US11207876
申请日：2005-08-22
申请人： Manus Henry , Maria De La Fuente
发明人： Manus Henry , Maria De La Fuente
IPC分类号： G01F1/74 , G01F1/84
CPC分类号： G01F1/8404 , G01F1/74 , G01F1/8431 , G01F1/8436 , G01F1/8486
摘要： A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit and is operable to sense the motion of the conduit and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to detect a single-phase flow condition and process the sensor signal using a first process during the single-phase flow condition to generate a validated mass-flow measurement. The controller is also operable to detect a two-phase flow condition and process the sensor signal using a second process during the two-phase flow condition to generate the validated mass-flow measurement.
摘要翻译：公开了一种流量计。流量计包括可振动导管和连接到导管的驱动器，其可操作以将运动传递给导管。传感器连接到管道并且可操作以感测导管的运动并产生传感器信号。连接控制器以接收传感器信号。控制器可操作以检测单相流动状态并且在单相流动条件期间使用第一过程处理传感器信号以产生经验证的质量流量测量。控制器还可操作以检测两相流条件，并且在两相流条件期间使用第二过程处理传感器信号，以产生经验证的质量流量测量。

4. 发明申请

US20060090537A1 Flowmeter calibration techniques 有权
标题翻译：流量计校准技术
公开(公告)号：US20060090537A1
公开(公告)日：2006-05-04
申请号：US11304698
申请日：2005-12-16
申请人： Wade Mattar
发明人： Wade Mattar
IPC分类号： G01F25/00
CPC分类号： G01F1/8436 , G01F1/74 , G01F1/8486 , G01F1/849 , G01F25/00 , G01N9/002
摘要： Descriptions are provided for implementing flowmeter zeroing techniques. In operating a flowmeter, it may be the case that, if not properly calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. By determining a magnitude of such erroneous measurements, calibration values may be determined, which may later be used to adjust a measurement that is output by the flowmeter and thereby improve an accuracy of the flowmeter. Such calibration values may be determined for a plurality of operational conditions associated with the flowmeter, such as densities of materials being measured, and/or configurations of flow elements associated with transporting material to the flowmeter. Then, the calibration values may be correlated with the relevant operational conditions, and stored for later use. In this way, during an actual operation of the flowmeter, a number of calibration values may be made available, and an optimal calibration value may be selected for an existing operational condition of the flowmeter.
摘要翻译：提供了实现流量计归零技术的说明。在操作流量计时，可能的情况是，如果未正确校准，流量计将产生错误的测量，例如将在零流量期间指示非零流量。通过确定这种错误测量的大小，可以确定校准值，其可以稍后用于调节由流量计输出的测量值，从而提高流量计的精度。可以针对与流量计相关联的多个操作条件（例如被测量的材料的密度）和/或与向流量计输送材料相关联的流动元件的构造确定这样的校准值。然后，校准值可以与相关的操作条件相关联，并存储供以后使用。以这种方式，在流量计的实际操作期间，可以使许多校准值可用，并且可以针对流量计的现有操作条件选择最佳校准值。

5. 发明申请

US20040243359A1 Evaluating a vortex flow-meter signal 有权
标题翻译：评估涡流流量计信号
公开(公告)号：US20040243359A1
公开(公告)日：2004-12-02
申请号：US10889007
申请日：2004-07-13
申请人： Invensys Systems, Inc., a Massachusetts corporation
发明人： Tarek Ghaoud , David W. Clarke
IPC分类号： G06F015/00
CPC分类号： G01F1/329
摘要： A signal processor, for use with a zero crossing module of a vortex flow meter, includes a peak amplitude detector, a comparator, and a filter module. The filter module is enabled when the comparator determines that the amplitude is less than a low flow rate threshold. The filter module filters a vortex signal and the filtered signal is provided to a frequency estimator that uses a zero crossing algorithm. The signal processor may increase the signal-to-noise ratio at low flow rates for which the frequency estimator may not otherwise be able to accurately estimate the flow rate. Low flow rates may be measured by determining that there is a low flow rate using amplitude detection of a vortex signal, filtering the vortex signal based on the amplitude detection, and using a zero crossing algorithm on the filtered,vortex signal.
摘要翻译：与涡流流量计的零交叉模块一起使用的信号处理器包括峰值振幅检测器，比较器和滤波器模块。当比较器确定振幅小于低流量阈值时，滤波器模块被使能。滤波器模块对涡流信号进行滤波，滤波后的信号被提供给使用零交叉算法的频率估计器。信号处理器可以在低流量下增加信噪比，频率估计器可能不能够准确地估计流量。可以通过使用涡流信号的振幅检测来确定存在低流量，基于振幅检测来过滤涡流信号，以及在滤波的涡旋信号上使用零交叉算法来测量低流速。

6. 发明申请

US20050201472A1 4-20 mA interface circuit 有权
标题翻译： 4-20 mA接口电路
公开(公告)号：US20050201472A1
公开(公告)日：2005-09-15
申请号：US11124052
申请日：2005-05-09
申请人： Michael Loechner
发明人： Michael Loechner
IPC分类号： G08C19/02 , H04B3/00 , H04L25/00
CPC分类号： G08C19/02
摘要： A valve controller is disclosed. The valve controller includes an interface circuit having an input for connection to a controller, a processor in data communication with the interface circuit which is operable to generate a control signal for controlling a valve position, and a control device operable to control the valve position in response to the control signal from the processor. The interface circuit includes a power extraction circuit connected to the controller and is further operable to generate a DC operating voltage for use in powering the interface circuit and the processor. The interface circuit includes a current sensor connected to the controller and is further operable to generate a measure of a current from the controller, the measure being used in controlling a device associated with the interface circuit. The interface circuit also includes a digital communications circuit connected to the controller and is further operable to transmit and receive communication signals. The digital communications circuit includes an impedance controller having an operational amplifier connected to control an impedance presented to the controller by the interface circuit.
摘要翻译：公开了一种阀控制器。阀控制器包括具有用于连接到控制器的输入的接口电路，与接口电路进行数据通信的处理器，其可操作以产生用于控制阀位置的控制信号;以及控制装置，其可操作以控制阀位置响应来自处理器的控制信号。接口电路包括连接到控制器的功率提取电路，并且还可操作以产生用于为接口电路和处理器供电的DC工作电压。接口电路包括连接到控制器的电流传感器，并且还可操作以产生来自控制器的电流测量值，所述测量用于控制与接口电路相关联的设备。接口电路还包括连接到控制器的数字通信电路，并且还可操作以发送和接收通信信号。数字通信电路包括具有运算放大器的阻抗控制器，其连接以控制由接口电路呈现给控制器的阻抗。

7. 发明申请

US20060123923A1 Two-phase steam measurement system 有权
公开(公告)号：US20060123923A1
公开(公告)日：2006-06-15
申请号：US11344046
申请日：2006-02-01
申请人： Robert Dutton , Wade Mattar
发明人： Robert Dutton , Wade Mattar
IPC分类号： G01F1/84
CPC分类号： G01F1/8468 , G01F1/74 , G01F15/024 , G01F15/046 , G01F15/08 , G01N9/002
摘要： A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals. The computing device also may calculate the total heat energy flow rate of the flow. Other implementations may include a full or partial separator to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow and a second Coriolis meter.

8. 发明申请

US20050273204A1 Intelligent valve flow linearization 有权
标题翻译：智能阀流量线性化
公开(公告)号：US20050273204A1
公开(公告)日：2005-12-08
申请号：US11203615
申请日：2005-08-15
申请人： Peter Hansen , Bulent Goksel
发明人： Peter Hansen , Bulent Goksel
IPC分类号： G05D7/06 , G05D7/00 , G05D11/00
CPC分类号： G05D7/005
摘要： A feed-forward flow controller is designed to calculate a target valve position from a target flow. Correction is made for liquid or gas pressure drop across the valve and for the valve flow modulating member geometry. This feed-forward action may also be used to linearize a feed-back flow control loop.
摘要翻译：前馈流量控制器被设计为从目标流量计算目标阀位置。对于阀门和阀门流量调节构件几何形状的液体或气体压降进行校正。这种前馈动作也可以用于线性化反馈流量控制回路。

9. 发明申请

US20030154804A1 Correcting for two-phase flow in a digital flowmeter 有权
标题翻译：纠正数字流量计中的两相流量
公开(公告)号：US20030154804A1
公开(公告)日：2003-08-21
申请号：US10339623
申请日：2003-01-10
申请人： Invensys Systems, Inc., a Massachusetts corporation
发明人： Manus P. Henry , Maria Jesus De La Fuente
IPC分类号： G01F001/84
CPC分类号： G01F1/8431 , G01F1/74 , G01F1/8436 , G01F1/8486 , G01F15/024
摘要： A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit and is operable to sense the motion of the conduit and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to detect a single-phase flow condition and process the sensor signal using a first process during the single-phase flow condition to generate a validated mass-flow measurement. The controller is also operable to detect a two-phase flow condition and process the sensor signal using a second process during the two-phase flow condition to generate the validated mass-flow measurement.
摘要翻译：公开了一种流量计。流量计包括可振动导管和连接到导管的驱动器，其可操作以将运动传递给导管。传感器连接到管道并且可操作以感测导管的运动并产生传感器信号。连接控制器以接收传感器信号。控制器可操作以检测单相流动状态并且在单相流动条件期间使用第一过程处理传感器信号以产生经验证的质量流量测量。控制器还可操作以检测两相流条件，并且在两相流条件期间使用第二过程处理传感器信号，以产生经验证的质量流量测量。

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