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1. 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。

2. 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。

3. 发明授权

US5705978A Process control transmitter 失效
标题翻译：过程控制变送器
公开(公告)号：US5705978A
公开(公告)日：1998-01-06
申请号：US536766
申请日：1995-09-29
申请人： Roger L. Frick , Ahmed H. Tewfik , John P. Schulte
发明人： Roger L. Frick , Ahmed H. Tewfik , John P. Schulte
IPC分类号： G08C19/02 , G08C19/10 , G08B29/00
CPC分类号： G08C19/10 , G08C19/02
摘要： A transmitter in a process control system includes input/output circuitry for coupling to a process control loop. A first sensor having a first impedance is responsive to a first sensed parameter. A second sensor having a second impedance is responsive to a sensed parameter. First and second excitation signals are applied to the first and second sensors. A summing node sums the outputs of the first and second sensors. An analog to digital converter provides a digital output representative of the summed signals. Digital signal processing circuitry coupled to the analog to digital converter provides an output related to the outputs of the first and second sensors to the input/output circuitry for transmission over the process control loop.
摘要翻译：过程控制系统中的变送器包括用于耦合到过程控制回路的输入/输出电路。具有第一阻抗的第一传感器响应于第一感测参数。具有第二阻抗的第二传感器响应感测参数。第一和第二激励信号被施加到第一和第二传感器。求和节点对第一和第二传感器的输出求和。模数转换器提供代表求和信号的数字输出。耦合到模数转换器的数字信号处理电路将与第一和第二传感器的输出相关的输出提供给输入/输出电路，以便在过程控制环路上传输。

4. 发明授权

US5155445A Vernier voltage-to-digital converter with a storage capacitance selectable in magnitude 失效
标题翻译：具有可选择大小的存储电容的游标电压 - 数字转换器
公开(公告)号：US5155445A
公开(公告)日：1992-10-13
申请号：US670988
申请日：1991-03-18
申请人： Roger L. Frick , John P. Schulte
发明人： Roger L. Frick , John P. Schulte
IPC分类号： G01L9/12 , G01L1/22 , G01R27/26
CPC分类号： G01L1/2256 , G01L1/2281
摘要： A voltage-to-digital converter comprising a storage circuit for providing a storage capacitance with a plurality of selectable magnitudes. The storage circuit provides a charge output representative of applied voltage input signals and the selected capacitive magnitude. A charge accumulation circuit is coupled to the charge output. The total charge accumulated is proportional to the integral of the amount of charge discharged from the storage circuit. The charge accumulation circuit provides a balance output representative of a comparison of the accumulated charge and a reference charge. A control circuit is coupled to the balance output for providing feedback signals as functions of the balance output for periodically charging and discharging the storage capacitance whereby a first sequence of charge packets is provided on the charge output for driving the accumulation of charge toward the reference within a first set of limits when a first capacitive magnitude is selected in the storage circuit and whereby a second sequence of charge packets is provided on the charge output for driving the accumulation of charge toward the reference charge within a second set of limits when a second capacitive magnitude is selected in the storage circuit. A calculation circuit is coupled to the feedback circuit for counting the number of charged packets generated in a measurement cycle. An output circuit provides an output indicative of the voltage input signals as a function of the number of packets counted.
摘要翻译：一种电压 - 数字转换器，包括用于向多个可选择量值提供存储电容的存储电路。存储电路提供表示施加的电压输入信号和所选择的电容幅度的电荷输出。电荷累积电路耦合到电荷输出。累积的总电荷与从存储电路放出的电荷量的积分成比例。电荷累积电路提供表示累积电荷与参考电荷的比较的平衡输出。控制电路耦合到平衡输出端，用于提供作为平衡输出的功能的反馈信号，用于周期性地对存储电容进行充电和放电，由此在电荷输出上提供第一序列的电荷分组，以将电荷累积驱动向着参考的内部当在存储电路中选择第一电容幅度并且由此在电荷输出上提供第二序列的电荷分组时的第一组限制，以在第二组电容中驱动向第一组限制内的参考电荷积累在存储电路中选择大小。计算电路耦合到反馈电路，用于对在测量周期中产生的充电分组的数量进行计数。输出电路提供指示电压输入信号的输出作为计数的分组数的函数。

5. 发明授权

US06568279B2 Scalable process transmitter 有权
公开(公告)号：US06568279B2
公开(公告)日：2003-05-27
申请号：US10125286
申请日：2002-04-18
申请人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Schumacher
发明人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Schumacher
IPC分类号： G01L700
CPC分类号： G01D1/00 , G01L13/026 , G01L19/0084 , G01L19/0663 , G01L19/069 , G01L19/083 , H01R13/527 , H01R29/00 , Y10S439/912 , Y10T29/49002
摘要： A scalable process transmitter architecture includes a unitized sensor module and an optional scalable transmitter. The sensor module has a sensor output that is configurable which can connect locally to a scalable transmitter module to form a transmitter, or can be wired directly to a remote receiver. The scalable transmitter can mount on the unitized sensor module and generates a scalable output for a remote receiver. The transmitter module can provide more advanced features for specific applications.

6. 发明授权

US06457367B1 Scalable process transmitter 有权
标题翻译：可扩展的过程变送器
公开(公告)号：US06457367B1
公开(公告)日：2002-10-01
申请号：US09671495
申请日：2000-09-27
申请人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Shumacher
发明人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Shumacher
IPC分类号： G01L900
CPC分类号： G01D1/00 , G01L13/026 , G01L19/0084 , G01L19/0663 , G01L19/069 , G01L19/083 , H01R13/527 , H01R29/00 , Y10S439/912 , Y10T29/49002
摘要： A scalable process transmitter architecture includes a unitized sensor module and an optional scalable transmitter. The sensor module has a sensor output that is configurable which can connect locally to a scalable transmitter module to form a transmitter, or can be wired directly to a remote receiver. The scalable transmitter can mount on the unitized sensor module and generates a scalable output for a remote receiver. The transmitter module can provide more advanced features for specific applications.
摘要翻译：可扩展的过程变送器架构包括一个单元化的传感器模块和一个可选的可扩展发射器。传感器模块具有可配置的传感器输出，其可以本地连接到可扩展发射器模块以形成发射器，或者可以直接连接到远程接收器。可扩展的发射机可以安装在单元化的传感器模块上，并为远程接收机生成可扩展的输出。发射机模块可以为特定应用提供更高级的功能。

7. 发明授权

US06898980B2 Scalable process transmitter 有权
标题翻译：可扩展的过程变送器
公开(公告)号：US06898980B2
公开(公告)日：2005-05-31
申请号：US10445710
申请日：2003-05-27
申请人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Schumacher
发明人： Steven M. Behm , Dale S. Davis , Mark C. Fandrey , Roger L. Frick , Robert C. Hedtke , Richard L. Nelson , Scott D. Nelson , Weston Roper , Theodore H. Schnaare , John P. Schulte , Mark S. Schumacher
IPC分类号： G01L19/14 , G01D1/00 , G01L9/00 , H01R29/00 , H01R31/06 , H05K7/00 , H01S4/00 , G01L000/16
CPC分类号： G01D1/00 , G01L13/026 , G01L19/0084 , G01L19/0663 , G01L19/069 , G01L19/083 , H01R13/527 , H01R29/00 , Y10S439/912 , Y10T29/49002
摘要： A scalable process transmitter architecture includes a unitized sensor module and an optional scalable transmitter. The sensor module has a sensor output that is configurable which can connect locally to a scalable transmitter module to form a transmitter, or can be wired directly to a remote receiver. The scalable transmitter can mount on the unitized sensor module and generates a scalable output for a remote receiver. The transmitter module can provide more advanced features for specific applications.
摘要翻译：可扩展的过程变送器架构包括一个单元化的传感器模块和一个可选的可扩展发射器。传感器模块具有可配置的传感器输出，其可以本地连接到可扩展发射器模块以形成发射器，或者可以直接连接到远程接收器。可扩展的发射机可以安装在单元化的传感器模块上，并为远程接收机生成可扩展的输出。发射机模块可以为特定应用提供更高级的功能。

8. 发明授权

US5119033A Vernier voltage-to-digital converter with a storage capacitance selectable in magnitude 失效
标题翻译：具有存储容量的VERNIER电压到数字转换器可在MAGNITUDE中选择
公开(公告)号：US5119033A
公开(公告)日：1992-06-02
申请号：US414533
申请日：1989-09-29
申请人： Roger L. Frick , John P. Schulte
发明人： Roger L. Frick , John P. Schulte
IPC分类号： G01L9/12 , G01L1/22 , G01R27/26
CPC分类号： G01L1/2256 , G01L1/2281
摘要： A voltage-to-digital converter comprising a storage circuit for providing a storage capacitance with a plurality of selectable magnitudes. The storage circuit provides a charge output representative of applied voltage input signals and the selected capacitive magnitude. A charge accumulation circuit is coupled to the charge output. The total charge accumulated is proportional to the integral of the amount of charge discharged from the storage circuit. The charge accumulation circuit provides a balance output representative of a comparison of the accumulated charge and a reference charge. A control circuit is coupled to the balance output for providing feedback signals as functions of the balance output for periodically charging and discharging the storage capacitance whereby a first sequence of charge packets is provided on the charge output for driving the accumulation of charge toward the reference within a first set of limits when a first capacitive magnitude is selected in the storage circuit and whereby a second sequence of charge packets is provided on the charge output for driving the accumulation of charge toward the reference charge within a second set of limits when a second capacitive magnitude is selected in the storage circuit. A calculation circuit is coupled to the feedback circuit for counting the number of charged packets generated in a measurement cycle. An output circuit provides an output indicative of the voltage input signals as a function of the number of packets counted.
摘要翻译：一种电压 - 数字转换器，包括用于向多个可选择量值提供存储电容的存储电路。存储电路提供表示施加的电压输入信号和所选择的电容幅度的电荷输出。电荷累积电路耦合到电荷输出。累积的总电荷与从存储电路放出的电荷量的积分成比例。电荷累积电路提供表示累积电荷与参考电荷的比较的平衡输出。控制电路耦合到平衡输出端，用于提供作为平衡输出的功能的反馈信号，用于周期性地对存储电容进行充电和放电，由此在电荷输出上提供第一序列的电荷分组，以将电荷累积驱动向着参考的内部当在存储电路中选择第一电容幅度并且由此在电荷输出上提供第二序列的电荷分组时的第一组限制，以在第二组电容中驱动向第一组限制内的参考电荷积累在存储电路中选择大小。计算电路耦合到反馈电路，用于对在测量周期中产生的充电分组的数量进行计数。输出电路提供指示电压输入信号的输出作为计数的分组数的函数。

9. 发明授权

US4878012A Charge balanced feedback transmitter 失效
标题翻译：充电平衡反馈变送器
公开(公告)号：US4878012A
公开(公告)日：1989-10-31
申请号：US205268
申请日：1988-06-10
申请人： John P. Schulte , Kelly M. Orth , Roger L. Frick , Brian L. Westfield , Randy K. Paschke
发明人： John P. Schulte , Kelly M. Orth , Roger L. Frick , Brian L. Westfield , Randy K. Paschke
IPC分类号： G01D5/24 , G01L9/12 , G01R27/26
CPC分类号： G01L9/12 , G01D5/24 , G01R27/2605
摘要： A charge balanced feedback type transmitter generates charge packets representative of a sensed parameter. Improved performance is achieved by the additiion of resistance connected between a charge packet generating reactance and an integrator to reduce the effects of noise caused by switching transients and by ground noise which is coupled to the charge packet generating circuitry by stray capacitance. The charge packets are integrated by the integrater, and the integrator output is supplied from a selective basis to the input of a comparator. The output of the comparator is used to control the application of charge packets to the integrator to achieve charge balance. The input of the comparator is selectively connected to the output of the integrator, to a first supply voltage, or to a second supply voltage to ensure a stable output of the comparator at a critical time when charge is being supplied to the integrator.
摘要翻译：电荷平衡反馈型发射器产生表示感测参数的电荷分组。通过增加连接在电荷分组产生电抗和积分器之间的电阻来实现改进的性能，以减少由开关瞬变引起的噪声的影响，以及通过杂散电容耦合到电荷分组产生电路的地面噪声。电荷分组由积分器积分，积分器输出从选择性提供给比较器的输入。比较器的输出用于控制对积分器的电荷分组的应用，以实现电荷平衡。比较器的输入选择性地连接到积分器的输出到第一电源电压或第二电源电压，以确保在向积分器供电的关键时刻稳定的比较器输出。

10. 发明授权

US4791352A Transmitter with vernier measurement 失效
标题翻译：变送器用游标测量
公开(公告)号：US4791352A
公开(公告)日：1988-12-13
申请号：US887603
申请日：1986-07-17
申请人： Roger L. Frick , John P. Schulte
发明人： Roger L. Frick , John P. Schulte
IPC分类号： G01L9/12 , G01D5/12 , G01D5/24 , G01R27/26
CPC分类号： G01R27/2605 , G01D5/12
摘要： A transmitter provides an output representative of a parameter. A generating circuit in the transmitter senses the parameter and provides charge packets having adjustable magnitudes to a measurement circuit. The measurement circuit measures the quantity of charge and provides a measurement signal representing the charge to a feedback circuit. The feedback circuit is controlled by the measurement signal and provides timed feedback signals to the generating means. The feedback signals control the generation and magnitude of the charge packets such that the charge coupled to the measurement circuit is finely balanced in a short measurement interval. The feedback means counts the number of charge packets provided during a measurement interval such that the numbers counted are representative of the sensed parameter.
摘要翻译：发射机提供代表参数的输出。发射机中的发生电路感测参数，并向测量电路提供具有可调幅度的电荷分组。测量电路测量电荷量，并向反馈电路提供表示电荷的测量信号。反馈电路由测量信号控制，并向发生装置提供定时反馈信号。反馈信号控制电荷分组的产生和幅度，使得耦合到测量电路的电荷在短的测量间隔内被精细平衡。反馈装置对在测量间隔期间提供的充电数据包的数量进行计数，使得所计数的数字表示所感测的参数。

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