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51. 发明授权

US07255012B2 Process fluid flow device with variable orifice 有权
标题翻译：具有可变孔口的过程流体流量装置
公开(公告)号：US07255012B2
公开(公告)日：2007-08-14
申请号：US11000564
申请日：2004-12-01
申请人： Robert C. Hedtke
发明人： Robert C. Hedtke
IPC分类号： G01F1/42
CPC分类号： F16K3/03 , G05D7/0635
摘要： A process device providing total fluid flow control is provided. The device includes a closure mechanism disposed in a flow conduit. The closure mechanism, which is preferably an iris-type diaphragm, provides a variable internal diameter. The device includes a differential pressure sensor for sensing the differential pressure on opposite sides of the diaphragm. A controller receives an indication of differential pressure and generates a control signal to an actuator that actuates the closure mechanism. The closure mechanism, differential pressure sensor and controller create a closed-loop flow controller in a single process device.
摘要翻译：提供了一种提供总体流体流量控制的过程装置。该装置包括设置在流动管道中的封闭机构。优选为虹膜型隔膜的封闭机构提供可变内径。该装置包括用于感测隔膜相对侧上的压差的差压传感器。控制器接收压差指示，并产生一个控制信号给促动关闭机构的致动器。封闭机构，差压传感器和控制器在单个过程装置中创建一个闭环流量控制器。

52. 发明授权

US06662662B1 Pressure transmitter with improved isolator system 有权
标题翻译：压力变送器具有改进的隔离系统
公开(公告)号：US06662662B1
公开(公告)日：2003-12-16
申请号：US09564506
申请日：2000-05-04
申请人： Christina A. Nord , David A. Horky , Kenneth G. Guttsen , Thomas E. Johnson , Matthew G. Sherin , Kevin P. Szafranski , William J. Ballot , Renae M. Patrick , Donald E. Harasyn , Ryan R. Eidenschink , Todd W. Schansberg , Mark G. Romo , Steven M. Behm , Bennett L. Louwagie , Robert C. Hedtke , Stanley E. Rud, Jr. , Jeffrey C. Brekken
发明人： Christina A. Nord , David A. Horky , Kenneth G. Guttsen , Thomas E. Johnson , Matthew G. Sherin , Kevin P. Szafranski , William J. Ballot , Renae M. Patrick , Donald E. Harasyn , Ryan R. Eidenschink , Todd W. Schansberg , Mark G. Romo , Steven M. Behm , Bennett L. Louwagie , Robert C. Hedtke , Stanley E. Rud, Jr. , Jeffrey C. Brekken
IPC分类号： G01L708
CPC分类号： G01L19/0645 , G01L19/0618 , G01L19/0663
摘要： A pressure transmitter with a fluid isolator that includes a sensor tube and a fill tube that have “D” shaped ends that connect together in a port internal to the transmitter. The shaped ends can be brazed into the port for sealing. Fitting both the sensor tube and the fill tube in the same port provides a low cost isolator with reduced isolator liquid volume. The fluid isolator has an isolator diaphragm with a central diaphragm region overlying a central backing plate that includes a annular groove. The annular groove avoids slow response of the isolator after an overpressure condition.
摘要翻译：具有流体隔离器的压力变送器，其包括传感器管和填充管，其具有在发射器内部的端口中连接在一起的“D”形端。成型端可以钎焊到端口中进行密封。将传感器管和填充管同时连接在同一个端口，可提供低成本的隔离器，减少隔离液体积。流体隔离器具有隔离隔膜，隔膜隔膜具有覆盖中心背板的中心隔膜区域，该中心隔板包括环形槽。环形槽避免了超压条件下隔离器的响应缓慢。

53. 发明授权

US06484590B1 Method for measuring fluid flow 有权
标题翻译：测量流体流量的方法
公开(公告)号：US06484590B1
公开(公告)日：2002-11-26
申请号：US09400562
申请日：1999-09-21
申请人： Lowell A. Kleven , Robert C. Hedtke , David E. Wiklund
发明人： Lowell A. Kleven , Robert C. Hedtke , David E. Wiklund
IPC分类号： G01F132
CPC分类号： G01F15/024 , G01F1/3254 , G01F1/329
摘要： A method for measuring fluid flow includes generating vortices in a fluid and relating the fluid flow to a first set of fluid parameters to obtain a first relationship, and relating the fluid flow to a second set of fluid parameters to obtain a second relationship. The first and second sets of fluid parameters are monitored. A first flow value is calculated from the first set of monitor fluid parameters and the first relationship. The second relationship is adjusted based on the first flow value. The output value is calculated from the second set of monitored fluid parameters and the adjusted second relationship.
摘要翻译：用于测量流体流动的方法包括在流体中产生涡流并将流体流与第一组流体参数相关联以获得第一关系，并将流体流与第二组流体参数相关联以获得第二关系。监测第一组和第二组流体参数。从第一组监测流体参数和第一关系计算第一流量值。基于第一流量值调整第二关系。输出值由第二组监测流体参数和经调整的第二关系计算。

54. 发明授权

US06170338B2 Vortex flowmeter with signal processing 失效
标题翻译：具有信号处理的涡街流量计
公开(公告)号：US06170338B2
公开(公告)日：2001-01-09
申请号：US08826167
申请日：1997-03-27
申请人： Lowell A. Kleven , Robert C. Hedtke , David E. Wiklund
发明人： Lowell A. Kleven , Robert C. Hedtke , David E. Wiklund
IPC分类号： G01F132
CPC分类号： G01F15/024 , G01F1/3254 , G01F1/329
摘要： A vortex sensor senses the generated vortices and provides a vortex signal. A filtering circuit is coupling to the vortex sensor to receive the vortex signal and provide an output indicative of fluid flow. A temperature sensor senses a temperature of the fluid and provides a temperature value, while a pressure sensor senses a pressure of the fluid and provides a pressure value. A processor is operably coupled to the filtering circuit, the temperature sensor, and the pressure sensor for receiving the output, the temperature value, and the pressure value, respectively. The processor calculates a calibration factor as a function of the output, the temperature value, and the pressure value for use in calculating the output value indicative of the flow rate of the fluid.
摘要翻译：涡流传感器感测所产生的涡流并提供涡流信号。滤波电路耦合到涡流传感器以接收涡流信号并提供指示流体流动的输出。温度传感器检测流体的温度并提供温度值，同时压力传感器感测流体的压力并提供压力值。处理器可操作地耦合到过滤电路，温度传感器和用于分别接收输出，温度值和压力值的压力传感器。处理器根据输出，温度值和压力值来计算校准因子，用于计算表示流体流量的输出值。

55. 发明授权

US09568387B2 Thermal diagnostic for single-crystal process fluid pressure sensor 有权
标题翻译：单晶工艺流体压力传感器的热诊断
公开(公告)号：US09568387B2
公开(公告)日：2017-02-14
申请号：US13569894
申请日：2012-08-08
申请人： Robert C. Hedtke
发明人： Robert C. Hedtke
IPC分类号： G01L27/00 , G01L9/00
CPC分类号： G01L9/0075 , G01L27/007
摘要： A method of verifying a condition of a single-crystal pressure sensor is provided. The method includes providing a single-crystal pressure sensor that has at least one electrical characteristic that varies with applied pressure being coupled to a first output and a second output. The pressure sensor also has at least one resistive element therein. A current is applied through the resistive element to heat the pressure sensor. At least one output of the pressure sensor is monitored to determine a response of the pressure sensor to current-induced heat. A verification output is provided based on the response.
摘要翻译：提供一种验证单晶压力传感器的状态的方法。该方法包括提供具有至少一个电特性的单晶压力传感器，该电特性随施加的压力而变化，所述压力传感器耦合到第一输出端和第二输出端。压力传感器还具有至少一个电阻元件。通过电阻元件施加电流以加热压力传感器。监测压力传感器的至少一个输出以确定压力传感器对电流感应热的响应。基于响应提供验证输出。

56. 发明授权

US08669866B2 Proximity sensor system for industrial process transmitter for detecting a spatial relationship between the transmitter and a mounting component 有权
标题翻译：用于工业过程变送器的接近传感器系统，用于检测变送器与安装部件之间的空间关系
公开(公告)号：US08669866B2
公开(公告)日：2014-03-11
申请号：US12660072
申请日：2010-02-19
申请人： Robert C. Hedtke
发明人： Robert C. Hedtke
IPC分类号： G08B21/00
CPC分类号： G01L27/007
摘要： A process transmitter for measuring a process variable comprises a process sensor, transmitter circuitry, a transmitter housing, a mounting component, and a non-contact proximity sensor. The process sensor senses a process variable of a process fluid. The transmitter circuitry processes a signal from the process sensor. The transmitter housing receives the process sensor and transmitter circuitry. The transmitter mounting component is connected to the housing to isolate the sensor, the transmitter circuitry or the transmitter housing from the process fluid or an external environment. The non-contact proximity sensor system detects a spatial relationship between the transmitter housing and the transmitter mounting component.
摘要翻译：用于测量过程变量的过程变送器包括过程传感器，变送器电路，变送器壳体，安装部件和非接触式接近传感器。过程传感器感测过程流体的过程变量。发射机电路处理来自过程传感器的信号。发射机壳体接收过程传感器和发射机电路。变送器安装部件连接到外壳，以将传感器，变送器电路或变送器壳体与过程流体或外部环境隔离。非接触式接近传感器系统检测变送器外壳和变送器安装部件之间的空间关系。

57. 发明申请

US20130074604A1 PROCESS FLUID PRESSURE TRANSMITTER WITH SEPARATED SENSOR AND SENSOR ELECTRONICS 有权
标题翻译：具有分离传感器和传感器电子的过程流体压力传感器
公开(公告)号：US20130074604A1
公开(公告)日：2013-03-28
申请号：US13245306
申请日：2011-09-26
申请人： Robert C. Hedtke , John Schulte , David A. Broden
发明人： Robert C. Hedtke , John Schulte , David A. Broden
IPC分类号： G01L9/00
CPC分类号： G01L19/0061 , G01F1/34 , G01F1/36 , G01F1/38 , G01F1/42 , G01F15/06 , G01F15/061 , G01L19/0046 , G01L19/0084 , G01L19/0681 , G01L19/08
摘要： A process fluid pressure transmitter has a remote pressure sensor. The transmitter includes an electronics housing and a loop communicator disposed in the electronics housing and being configured to communicate in accordance with a process communication protocol. A controller is disposed within the electronics housing and is coupled to the loop communicator. Sensor measurement circuitry is disposed within the electronics housing and is coupled to the controller. A remote pressure sensor housing is configured to couple directly to a process and is spaced from the electronics housing. A pressure sensor is disposed within the remote pressure sensor housing. The pressure sensor forms at least one electrical component having an electrical characteristic that varies with process fluid pressure. Portions of the electrical component are coupled directly to a multiconductor cable that operably connects the pressure sensor to the sensor measurement circuitry.
摘要翻译：过程流体压力变送器具有远程压力传感器。发射机包括电子设备壳体和设置在电子设备壳体中并被配置为根据过程通信协议进行通信的环路通信器。控制器设置在电子设备外壳内并耦合到环路通信器。传感器测量电路设置在电子设备外壳内并耦合到控制器。远程压力传感器壳体被配置为直接耦合到过程并且与电子器件壳体间隔开。压力传感器设置在远程压力传感器壳体内。压力传感器形成至少一个具有随过程流体压力变化的电特性的电气部件。电气部件的部分直接连接到可操作地将压力传感器连接到传感器测量电路的多导体电缆。

58. 发明授权

US08299938B2 Projected instrument displays for field mounted process instruments 有权
标题翻译：用于现场安装的过程仪器的投影仪显示
公开(公告)号：US08299938B2
公开(公告)日：2012-10-30
申请号：US12555582
申请日：2009-09-08
申请人： Robert C. Hedtke
发明人： Robert C. Hedtke
IPC分类号： G08C15/06
CPC分类号： G01D7/002 , G01D7/02
摘要： An industrial process transmitter includes a first process sensor, transmitter circuitry, a housing and an image projector. The first process sensor measures a process variable of an industrial process and generates a sensor signal. The transmitter circuitry is connected to the first process sensor and is configured to operate functions of the process transmitter. The housing includes a window and an image projector. The image projector is connected to the transmitter circuitry and is configured to project an image of information relating to functions of the process transmitter onto the window in the housing.
摘要翻译：工业过程变送器包括第一过程传感器，发射器电路，壳体和图像投影仪。第一过程传感器测量工业过程的过程变量并产生传感器信号。发射机电路连接到第一过程传感器并被配置为操作过程变送器的功能。壳体包括窗口和图像投影仪。图像投影仪连接到发射机电路，并且被配置为将与过程变送器的功能相关的信息的图像投影到壳体中的窗口上。

59. 发明申请

US20120006120A1 TRANSMITTER OUTPUT WITH SCALABLE RANGEABILITY 有权
标题翻译：具有可扩展范围的变送器输出
公开(公告)号：US20120006120A1
公开(公告)日：2012-01-12
申请号：US12834393
申请日：2010-07-12
申请人： Robert C. Hedtke
发明人： Robert C. Hedtke
IPC分类号： G01L9/00
CPC分类号： G01L9/125 , G01D3/02 , G01L9/12
摘要： An industrial process transmitter includes a sensing system and transmitter electronics. The sensing system senses a process variable over a range. The transmitter electronics is connected to the sensing system and produces a scaled analog communication signal to communicate the process variable over an analog loop. The range is disproportionately distributed over the scale by the transmitter electronics.
摘要翻译：工业过程变送器包括感测系统和变送器电子器件。感测系统感测一个范围内的过程变量。发射机电子设备连接到感测系统，并产生一个缩放的模拟通信信号，以通过模拟环路传送过程变量。发射机电子设备的范围不成比例地分布在规模上。

60. 发明授权

US07954383B2 Method and apparatus for pressure measurement using fill tube 有权
标题翻译：使用填充管进行压力测量的方法和装置
公开(公告)号：US07954383B2
公开(公告)日：2011-06-07
申请号：US12327050
申请日：2008-12-03
申请人： Charles R. Willcox , Robert C. Hedtke , Liangju Lu
发明人： Charles R. Willcox , Robert C. Hedtke , Liangju Lu
IPC分类号： G01L9/12
CPC分类号： G01L15/00 , G01L9/0029 , G01L9/003 , G01L9/16 , G01L13/021 , G01L13/06 , G01L23/12 , G01L23/125 , G01L23/145
摘要： A pressure sensor includes a fill tube which is arranged to couple to a process pressure. A sensor is coupled to the fill tube and is configured to measure pressure of fluid in the fill tube as a function of a change of a physical property of the fill tube. Circuitry is provided to measure pressure using the pressure sensor, and to measure pressure based upon the change of the physical property of the fill tube.
摘要翻译：压力传感器包括填充管，该填充管被布置成耦合到过程压力。传感器耦合到填充管，并且被配置为根据填充管的物理性质的变化来测量填充管中的流体的压力。提供电路以使用压力传感器测量压力，并且基于填充管的物理特性的变化来测量压力。

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