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1. 发明申请

US20110282467A1 TWO-WIRE INDUSTRIAL PROCESS FIELD DEVICE WITH POWER SCAVENGING 有权
标题翻译：双线工业过程现场设备与电源SCAVENGING
公开(公告)号：US20110282467A1
公开(公告)日：2011-11-17
申请号：US13098678
申请日：2011-05-02
申请人： John P. Schulte
发明人： John P. Schulte
IPC分类号： G06F1/26
CPC分类号： G05B19/0423
摘要： A process field device for use in monitoring or controlling an industrial process includes first and second loop terminals configured to couple to a two-wire industrial process control loop. Field device circuitry is configured to monitor or control a process variable of the industrial process. The field device circuitry is powered by power connections from the two-wire industrial process control loop. A current regulator is connected in series with the two-wire industrial process control loop, the first and second loop terminals and the field device circuitry. The current regulator is configured to control a loop current flowing through the two-wire process control loop. A voltage regulator is connected in parallel with the current regulator and in series with the two-wire industrial process control loop, first and second loop terminals and field device circuitry. The voltage regulator is configured to control a voltage across the field device circuitry.
摘要翻译：用于监测或控制工业过程的过程现场设备包括被配置为耦合到两线工业过程控制回路的第一和第二回路端子。现场设备电路被配置为监视或控制工业过程的过程变量。现场设备电路由来自两线工业过程控制回路的电源连接供电。电流调节器与双线工业过程控制回路，第一和第二回路端子和现场设备电路串联连接。电流调节器被配置为控制流过两线过程控制回路的回路电流。电压调节器与电流调节器并联连接，并与两线工业过程控制回路，第一和第二回路端子和现场设备电路串联。电压调节器被配置为控制现场设备电路两端的电压。

2. 发明授权

US07970063B2 Variable liftoff voltage process field device 有权
标题翻译：可变离心电压过程现场设备
公开(公告)号：US07970063B2
公开(公告)日：2011-06-28
申请号：US12045248
申请日：2008-03-10
申请人： John P. Schulte
发明人： John P. Schulte
IPC分类号： H04L27/00
CPC分类号： G05B19/0423 , G05B2219/25428 , G08C19/02 , G08C2201/10
摘要： A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop terminal configured to couple to the two-wire process control loop. A switching regulator has an input and an output. The output is coupled to the transmitter circuitry and arranged to provide power to the transmitter circuitry. A variable voltage source having an input electrically coupled to the first process control loop terminal, and a voltage output coupled to the input of the switching regulator and a control input. The voltage output is a function of the control input.
摘要翻译：现场发射机包括配置成测量或控制过程变量的现场设备电路。第一过程控制回路端子被配置为耦合到携带回路电流的二线过程控制回路。配置为耦合到两线制过程控制回路的第二过程控制回路端子。开关稳压器具有输入和输出。输出耦合到发射机电路并被布置成向发射机电路提供电力。一种可变电压源，具有电耦合到第一过程控制回路端子的输入端，以及耦合到开关调节器的输入端的电压输出端和控制输入端。电压输出是控制输入的函数。

3. 发明申请

US20100083768A1 Thermal-based diagnostic system for process transmitter 有权
标题翻译：用于过程变送器的基于热的诊断系统
公开(公告)号：US20100083768A1
公开(公告)日：2010-04-08
申请号：US12287106
申请日：2008-10-06
申请人： Robert C. Hedtke , Charles R. Willcox , David A. Broden , Andrew Juri Klosinski , John P. Schulte
发明人： Robert C. Hedtke , Charles R. Willcox , David A. Broden , Andrew Juri Klosinski , John P. Schulte
IPC分类号： G01L9/12
CPC分类号： G01L27/005 , G01L27/007 , Y02P80/114
摘要： A process transmitter for measuring a process variable in an industrial process comprises a sensor module, a heating device and transmitter circuitry. The sensor module has a sensor for sensing a process variable of an industrial process and generating a sensor signal. The heating device is connected to the sensor module for generating a heat pulse to influence generation of the sensor signal. The transmitter circuitry is connected to the sensor and the heating device. The transmitter circuitry verifies operation of the sensor by measuring a change in the sensor signal due to the heat pulse. In one embodiment of the invention, the heat pulse thermally expands a volume of a fill fluid within the process transmitter. In another embodiment, the heat pulse changes a physical property, such as dielectric, of a fill fluid within the process transmitter.
摘要翻译：用于测量工业过程中的过程变量的过程变送器包括传感器模块，加热装置和发射器电路。传感器模块具有用于感测工业过程的过程变量并产生传感器信号的传感器。加热装置连接到传感器模块，用于产生热脉冲以影响传感器信号的产生。发射机电路连接到传感器和加热装置。发射机电路通过测量由于热脉冲引起的传感器信号的变化来验证传感器的操作。在本发明的一个实施例中，热脉冲热膨胀过程变送器内的填充流体的体积。在另一个实施例中，热脉冲改变过程变送器内的填充流体的物理性质，例如电介质。

4. 发明申请

US20090224730A1 VARIABLE LIFTOFF VOLTAGE PROCESS FIELD DEVICE 有权
标题翻译：可变升压电压过程现场设备
公开(公告)号：US20090224730A1
公开(公告)日：2009-09-10
申请号：US12045248
申请日：2008-03-10
申请人： John P. Schulte
发明人： John P. Schulte
IPC分类号： G05F1/00 , G05B24/02
CPC分类号： G05B19/0423 , G05B2219/25428 , G08C19/02 , G08C2201/10
摘要： A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop terminal configured to couple to the two-wire process control loop. A switching regulator has an input and an output. The output is coupled to the transmitter circuitry and arranged to provide power to the transmitter circuitry. A variable voltage source having an input electrically coupled to the first process control loop terminal, and a voltage output coupled to the input of the switching regulator and a control input. The voltage output is a function of the control input.
摘要翻译：现场发射机包括配置成测量或控制过程变量的现场设备电路。第一过程控制回路端子被配置为耦合到携带回路电流的二线过程控制回路。配置为耦合到两线制过程控制回路的第二过程控制回路端子。开关稳压器具有输入和输出。输出耦合到发射机电路并被布置成向发射机电路提供电力。一种可变电压源，具有电耦合到第一过程控制回路端子的输入端，以及耦合到开关调节器的输入端的电压输出端和控制输入端。电压输出是控制输入的函数。

5. 发明授权

US5083091A Charged balanced feedback measurement circuit 失效
标题翻译：充电平衡反馈测量电路
公开(公告)号：US5083091A
公开(公告)日：1992-01-21
申请号：US175627
申请日：1988-03-30
申请人： Roger L. Frick , John P. Schulte
发明人： Roger L. Frick , John P. Schulte
IPC分类号： G01L9/12
CPC分类号： G01L9/125
摘要： A measurement circuit provides an output signal as a function of an input signal. The measurement circuit includes a charge generator which provides packets of charge as a function of the input signal to a measurement element. The measurement element measures the charge provided and provides a measurement signal as a function of the charge received. The measurement signal is coupled to a feedback circuit which couples to switches in the charge generator to control production of charge packets. The feedback circuit provides at least one output signal indicative of the quantity or number of charge packets provided.
摘要翻译：测量电路提供作为输入信号的函数的输出信号。测量电路包括电荷发生器，该电荷发生器根据输入信号向测量元件提供电荷分组。测量元件测量所提供的电荷，并提供作为接收电荷的函数的测量信号。测量信号耦合到反馈电路，该反馈电路耦合到电荷发生器中的开关以控制电荷分组的产生。反馈电路提供指示所提供的充电分组的数量或数量的至少一个输出信号。

6. 发明授权

US4578735A Pressure sensing cell using brittle diaphragm 失效
标题翻译：使用脆性膜片的压力传感器
公开(公告)号：US4578735A
公开(公告)日：1986-03-25
申请号：US660394
申请日：1984-10-12
申请人： Thomas A. Knecht , Roger L. Frick , John P. Schulte
发明人： Thomas A. Knecht , Roger L. Frick , John P. Schulte
IPC分类号： G01L9/12 , G01L9/00 , H01G5/16 , H01G7/00
CPC分类号： G01L9/0073 , H01G5/16 , Y10T29/43
摘要： A capacitive sensing cell is adapted for manufacture in a batch process, and uses a substrate or base from a rigid insulating material such as glass and a diaphragm assembly of a brittle semiconductor. The diaphragm assembly and the substrate are anodically bonded together. A very shallow recess is formed on either the diaphragm or the substrate to accommodate a deposited capacitor plate. Two such assemblies are connected together and the assembly is filled with noncompressible fluid to slightly bow the diaphragms away from the substrates. Differential pressure between the diaphragm assemblies is sensed by detecting the relative positions of the two diaphragms.
摘要翻译：电容式感测单元适于以间歇方式制造，并且使用来自诸如玻璃的刚性绝缘材料的基底或基底以及脆性半导体的隔膜组件。隔膜组件和基板阳极结合在一起。在隔膜或基板上形成非常浅的凹槽以容纳沉积的电容器板。两个这样的组件连接在一起，并且组件填充有不可压缩的流体，以使离开基板的膜片略微弯曲。通过检测两个隔膜的相对位置来检测隔膜组件之间的差压。

7. 发明授权

US09264787B2 Communication system for process field device 有权
标题翻译：过程现场设备通信系统
公开(公告)号：US09264787B2
公开(公告)日：2016-02-16
申请号：US12955185
申请日：2010-11-29
申请人： Eugene Korolev , John P. Schulte
发明人： Eugene Korolev , John P. Schulte
IPC分类号： H04Q9/00 , H04L25/03 , H04B3/32 , H04B1/7107 , H04B15/02
CPC分类号： H04Q9/00 , H04B1/7107 , H04B3/32 , H04B15/02 , H04L25/0328 , H04Q2209/10 , H04Q2209/40
摘要： A field device for use in an industrial process, includes a process interface element configured to measure or control a process variable. Communication circuitry is configured to communicate with another location. A communication system is configured to provide communications between at least two components in the field device. A signal inverter couples an inverted signal from the communication system to other circuitry to thereby reduce interference received by the other circuitry.
摘要翻译：用于工业过程的现场设备包括被配置为测量或控制过程变量的过程接口元件。通信电路被配置为与另一位置通信。通信系统被配置为提供现场设备中的至少两个组件之间的通信。信号反相器将来自通信系统的反相信号耦合到其他电路，从而减少由另一电路接收的干扰。

8. 发明授权

US08340791B2 Process device with sampling skew 有权
标题翻译：具有采样偏移的过程装置
公开(公告)号：US08340791B2
公开(公告)日：2012-12-25
申请号：US12571622
申请日：2009-10-01
申请人： John P. Schulte
发明人： John P. Schulte
IPC分类号： G01R23/10 , G01R23/00 , G01R25/00 , G01R35/00 , G01R19/00 , G01R23/12 , G06F17/40 , H03F1/26 , G05B11/01 , G05B21/02
CPC分类号： G05B23/0221 , G01F15/00 , G01F15/063 , G01F23/0069 , G01F23/0076
摘要： An industrial process device for monitoring or controlling an industrial process includes a first input configured to receive a first plurality of samples related to a first process variable and a second input configured to receive a second plurality of samples related to a second process variable. Compensation circuitry is configured to compensate for a time difference between the first plurality of samples and the second plurality of samples and provide a compensated output related to at least one of the first and second process variables. The compensated output can comprise, or can be used to calculate a third process variable. The third process variable can be used to monitor or control the industrial process.
摘要翻译：一种用于监测或控制工业过程的工业过程装置包括被配置为接收与第一过程变量相关的第一多个采样的第一输入和被配置为接收与第二过程变量相关的第二多个采样的第二输入。补偿电路被配置为补偿第一多个样本和第二多个样本之间的时间差，并提供与第一和第二过程变量中的至少一个有关的补偿输出。补偿输出可以包括或可以用于计算第三过程变量。第三个过程变量可用于监控或控制工业过程。

9. 发明申请

US20120136931A1 COMMUNICATION SYSTEM FOR PROCESS FIELD DEVICE 有权
标题翻译：用于处理现场设备的通信系统
公开(公告)号：US20120136931A1
公开(公告)日：2012-05-31
申请号：US12955185
申请日：2010-11-29
申请人： Eugene Korolev , John P. Schulte
发明人： Eugene Korolev , John P. Schulte
IPC分类号： G06F15/16
CPC分类号： H04Q9/00 , H04B1/7107 , H04B3/32 , H04B15/02 , H04L25/0328 , H04Q2209/10 , H04Q2209/40
摘要： A field device for use in an industrial process, includes a process interface element configured to measure or control a process variable. Communication circuitry is configured to communicate with another location. A communication system is configured to provide communications between at least two components in the field device. A signal inverter couples an inverted signal from the communication system to other circuitry to thereby reduce interference received by the other circuitry.
摘要翻译：用于工业过程的现场设备包括被配置为测量或控制过程变量的过程接口元件。通信电路被配置为与另一位置通信。通信系统被配置为提供现场设备中的至少两个组件之间的通信。信号反相器将来自通信系统的反相信号耦合到其他电路，从而减少由另一电路接收的干扰。

10. 发明授权

US06828802B2 Pressure measurement device including a capacitive sensor in an amplifier feedback path 有权
标题翻译：包括放大器反馈路径中的电容式传感器的压力测量装置
公开(公告)号：US06828802B2
公开(公告)日：2004-12-07
申请号：US10222260
申请日：2002-08-16
申请人： John P. Schulte
发明人： John P. Schulte
IPC分类号： G01R2726
CPC分类号： G01L9/125
摘要： A pressure measurement device that has a digital clock circuit that provides an excitation clock and a control output. An integrator includes a switch controlled by the control output, an amplifier, and a pressure sensing capacitance coupled in an amplifier feedback path. The switch connects across the first pressure sensing capacitance. A reference capacitance that is insensitive to the pressure couples between the excitation clock and the amplifier input. An amplifier output represents the pressure.
摘要翻译：具有提供激励时钟和控制输出的数字时钟电路的压力测量装置。积分器包括由控制输出控制的开关，放大器和耦合在放大器反馈路径中的压力感测电容。开关连接第一压力感测电容。对激励时钟和放大器输入之间的压力耦合不敏感的参考电容。放大器输出代表压力。

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