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公开(公告)号：US10345178B2
公开(公告)日：2019-07-09
申请号：US15637292
申请日：2017-06-29
发明人： George Hershey , Richard D. Daugert
摘要： An apparatus includes a header containing a sensor configured to measure pressure and a sensor body connected to the header, where the sensor body and the header form a pressure vessel configured to receive an input pressure. The header is connected to the sensor body such that the input pressure received on an inner surface of the header is substantially equal to the input pressure received on an outer surface of the header. A lowest connection point of the header to the sensor body may be located at or above a highest point at which the input pressure extends into the header. A lower portion of the header may be unconnected to the sensor body and extend into an interior volume of the sensor body. The header may include a vent configured to expose the sensor to atmospheric pressure or a lower-pressure input pressure.
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公开(公告)号：US20180259414A1
公开(公告)日：2018-09-13
申请号：US15637232
申请日：2017-06-29
发明人： George Hershey , Richard D. Daugert
CPC分类号： G01L19/0618 , G01L7/08 , G01L7/082 , G01L11/004 , G01L13/026 , G01L15/00 , G01L19/0645 , G01L19/0663 , G01L19/14
摘要： An apparatus includes a sensor body, a sensor configured to measure differential pressure, and first and second pressure inputs in or on the sensor body. The pressure inputs are configured to provide multiple input pressures to the sensor. Each pressure input includes a barrier diaphragm configured to move in response to pressure and an overload diaphragm configured to limit movement of the barrier diaphragm. The overload diaphragm is also configured to exert a preload force against the sensor body. The overload diaphragm of each pressure input may include multiple convolutions. Bases of the convolutions may be configured to provide the preload force, and tops of the convolutions may be separated from the sensor body by gaps. Tops of the convolutions that are non-adjacent may be configured to provide the preload force, and tops of the convolutions between the non-adjacent convolutions may be separated from the sensor body by gaps.
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公开(公告)号：US20180259416A1
公开(公告)日：2018-09-13
申请号：US15632059
申请日：2017-06-23
CPC分类号： G01L19/0618 , G01L7/08 , G01L7/082 , G01L11/004 , G01L13/026 , G01L15/00 , G01L19/0645 , G01L19/0663 , G01L19/14
摘要： An apparatus includes a sensor body and a sensor configured to measure pressure. The apparatus also includes at least one pressure input in or on the sensor body, where the at least one pressure input is configured to provide at least one input pressure to the sensor. The apparatus further includes multiple fluid passages configured to convey the at least one input pressure from the at least one pressure input to the sensor using a fill fluid. The multiple fluid passages are configured to both (i) transport the fill fluid and (ii) absorb thermal energy in a flame created by the sensor before the flame exits the sensor body. The fluid passages can include long and narrow straight passages, long and narrow curved or helical passages, and turns or bends. The fluid passages can have small cross-sections relative to their lengths.
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公开(公告)号：US20180259413A1
公开(公告)日：2018-09-13
申请号：US15632005
申请日：2017-06-23
CPC分类号： G01L19/0618 , G01L7/08 , G01L7/082 , G01L11/004 , G01L13/026 , G01L15/00 , G01L19/0645 , G01L19/0663 , G01L19/14
摘要： An apparatus includes a sensor body and a sensor configured to measure differential pressure. The apparatus also includes first and second coplanar pressure inputs in or on the sensor body, where the pressure inputs are configured to provide multiple input pressures to the sensor. Each pressure input includes a barrier diaphragm configured to move in response to pressure and an overload diaphragm configured to limit movement of the barrier diaphragm. First and second fill fluid may be configured to convey the pressures from the barrier diaphragms of the pressure inputs to the sensor as first and second input pressures. Passages may be configured to transport the fill fluid between (i) gaps between the barrier diaphragms and the overload diaphragms of the pressure inputs and (ii) the sensor and gaps between the overload diaphragms and the sensor body.
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公开(公告)号：US09347847B2
公开(公告)日：2016-05-24
申请号：US14463344
申请日：2014-08-19
发明人： George Hershey
IPC分类号： G01L19/00
CPC分类号： G01L19/0092
摘要： A pressure transmitter includes at least one impulse line for coupling a fluid pipe or tank to a pressure sensor that measures a process pressure of a process fluid, a temperature sensor measuring an ambient temperature, and a processor accessing baseline data for the process pressure and ambient temperature. The processor implements an automatic impulse line plugging diagnostic (ILPD) algorithm stored in memory. The processor runs the ILPD algorithm implementing utilizing process measurements including a process pressure from the pressure sensor and an ambient temperature from the temperature sensor, comparing a magnitude of the process pressure to a baseline pressure predicted from the baseline data corresponding to the ambient temperature, and uses results of the comparing to determine whether the impulse line is plugged. The comparing can involve comparing a process pressure change to a baseline pressure change predicted corresponding to an ambient temperature change.
摘要翻译： 压力变送器包括用于将流体管或罐耦合到测量过程流体的过程压力的压力传感器，测量环境温度的温度传感器和处理器访问过程压力和环境的基准数据的至少一个脉冲管线 温度。 处理器实现存储在存储器中的自动脉冲线插入诊断（ILPD）算法。 处理器运行ILPD算法，其利用过程测量，包括来自压力传感器的过程压力和来自温度传感器的环境温度，将过程压力的大小与对应于环境温度的基线数据预测的基准压力进行比较;以及 使用比较结果来确定脉冲线是否被堵塞。 比较可以涉及将过程压力变化与对应于环境温度变化预测的基线压力变化进行比较。
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公开(公告)号：US10656039B2
公开(公告)日：2020-05-19
申请号：US15637232
申请日：2017-06-29
发明人： George Hershey , Richard D. Daugert
摘要： An apparatus includes a sensor body, a sensor configured to measure differential pressure, and first and second pressure inputs in or on the sensor body. The pressure inputs are configured to provide multiple input pressures to the sensor. Each pressure input includes a barrier diaphragm configured to move in response to pressure and an overload diaphragm configured to limit movement of the barrier diaphragm. The overload diaphragm is also configured to exert a preload force against the sensor body. The overload diaphragm of each pressure input may include multiple convolutions. Bases of the convolutions may be configured to provide the preload force, and tops of the convolutions may be separated from the sensor body by gaps. Tops of the convolutions that are non-adjacent may be configured to provide the preload force, and tops of the convolutions between the non-adjacent convolutions may be separated from the sensor body by gaps.
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公开(公告)号：US10378987B2
公开(公告)日：2019-08-13
申请号：US15632059
申请日：2017-06-23
摘要： An apparatus includes a sensor body and a sensor configured to measure pressure. The apparatus also includes at least one pressure input in or on the sensor body, where the at least one pressure input is configured to provide at least one input pressure to the sensor. The apparatus further includes multiple fluid passages configured to convey the at least one input pressure from the at least one pressure input to the sensor using a fill fluid. The multiple fluid passages are configured to both (i) transport the fill fluid and (ii) absorb thermal energy in a flame created by the sensor before the flame exits the sensor body. The fluid passages can include long and narrow straight passages, long and narrow curved or helical passages, and turns or bends. The fluid passages can have small cross-sections relative to their lengths.
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公开(公告)号：US20180259415A1
公开(公告)日：2018-09-13
申请号：US15637292
申请日：2017-06-29
发明人： George Hershey , Richard D. Daugert
CPC分类号： G01L19/0618 , G01L7/08 , G01L7/082 , G01L11/004 , G01L13/026 , G01L15/00 , G01L19/0645 , G01L19/0663 , G01L19/14
摘要： An apparatus includes a header containing a sensor configured to measure pressure and a sensor body connected to the header, where the sensor body and the header form a pressure vessel configured to receive an input pressure. The header is connected to the sensor body such that the input pressure received on an inner surface of the header is substantially equal to the input pressure received on an outer surface of the header. A lowest connection point of the header to the sensor body may be located at or above a highest point at which the input pressure extends into the header. A lower portion of the header may be unconnected to the sensor body and extend into an interior volume of the sensor body. The header may include a vent configured to expose the sensor to atmospheric pressure or a lower-pressure input pressure.
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公开(公告)号：US20170167939A1
公开(公告)日：2017-06-15
申请号：US14969331
申请日：2015-12-15
发明人： Bas Kastelein , Bin Sai , George Hershey
IPC分类号： G01L27/00
CPC分类号： G01L27/005
摘要： A system includes at least one pressure sensor that is configured to generate a first signal in response to sensing a process and generate a second signal in response to sensing a drift detection condition different from the process. The system includes at least one processing device that is configured to determine a pressure measurement (Pprocess) of the process using the first signal, and determine a pressure measurement (AP2) of the drift detection condition using the second signal. The at least one processing device is configured to compare the pressure measurement of the drift detection condition to one of: the pressure measurement of the process or a reference value. The at least one processing device is configured to identify whether drift has deteriorated accuracy of the at least one pressure sensor based on the comparison.
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