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61. 发明授权

US6151557A Friction flowmeter with improved software 失效
标题翻译：摩擦流量计具有改进的软件
公开(公告)号：US6151557A
公开(公告)日：2000-11-21
申请号：US6452
申请日：1998-01-13
申请人： David A. Broden , David E. Wiklund
发明人： David A. Broden , David E. Wiklund
IPC分类号： G01F1/34 , G01F1/50 , G01F1/00
CPC分类号： G01F1/50 , G01F1/34
摘要： A method in a pressure transmitter and a pressure transmitter for determining a mass flow rate of a fluid in a conduit measure a differential pressure between two points in the fluid, where the conduit has a substantially constant cross-sectional area between the two points. In one aspect, the mass flow rate is calculated by multiplying the square-root of the differential pressure by a mass flow constant.
摘要翻译：用于确定管道中的流体的质量流量的压力变送器和压力变送器中的方法测量流体中两个点之间的压差，其中导管在两个点之间具有基本恒定的横截面积。一方面，通过将压差的平方根乘以质量流量常数来计算质量流量。

62. 发明授权

US5920016A Apparatus for coupling a transmitter to process fluid 失效
标题翻译：用于将发射器耦合到处理流体的装置
公开(公告)号：US5920016A
公开(公告)日：1999-07-06
申请号：US929804
申请日：1997-09-15
申请人： David A. Broden
发明人： David A. Broden
IPC分类号： G01L19/00 , G01L7/00
CPC分类号： G01L19/0015 , Y10T137/9029
摘要： A transmitter of the type used in the process control industry includes a sensor for sensing a process variable and a transmitter body having a sensor coupling. A sensor extension couples to the sensor coupling and includes a sensor coupling face. A first flange interface has a process face which provides a process connection and a sensor face which provides a sensor connection. A passageway couples the process connection to the sensor connection. The first flange interface is coupled to the sensor extension by a coupling mechanism. The sensor extension and the first flange interface may be moved throughout a range of positions relative to one another.
摘要翻译：在过程控制行业中使用的类型的发射器包括用于感测过程变量的传感器和具有传感器耦合的发射器主体。传感器延伸件耦合到传感器联轴器并且包括传感器联接面。第一法兰接口具有提供过程连接的工艺面和提供传感器连接的传感器面。通道将过程连接耦合到传感器连接。第一法兰接口通过联接机构联接到传感器延伸部。传感器延伸部和第一法兰接口可以在相对于彼此的位置范围内移动。

63. 发明授权

US5899962A Differential pressure measurement arrangement utilizing dual transmitters 失效
标题翻译：使用双发射器的差压测量装置
公开(公告)号：US5899962A
公开(公告)日：1999-05-04
申请号：US792298
申请日：1997-01-31
申请人： Bennett L. Louwagie , Gregory S. Munson , David E. Wiklund , Michael J. Zweber , David A. Broden , Brian J. Bischoff , Gary P. Corpron
发明人： Bennett L. Louwagie , Gregory S. Munson , David E. Wiklund , Michael J. Zweber , David A. Broden , Brian J. Bischoff , Gary P. Corpron
IPC分类号： G01F1/36 , G01F1/88 , G01F15/06 , G01F23/14 , G01F23/18 , G01L7/08 , G01L9/04 , G01L19/00 , G01L19/08 , G01C25/00
CPC分类号： G01F23/18 , G01F1/363 , G01F1/50 , G01F1/88 , G01F15/063 , G01L19/0007 , G01L19/0015 , G01L19/083 , G01L9/045
摘要： A two-wire transmitter senses differential pressure, absolute pressure, and process temperature of a process fluid. The information can be used to provide an output representative of mass flow through a pipe. The transmitter has an electronics module housing attached to a sensor module housing. The sensor module housing contains all the sensors for the pressures and includes a boss input for receiving a signal representative of a temperature or pressure signal. The three process variables are appropriately digitized, and received by an electronics circuit board in the electronics housing including a microprocessor for calculating the mass flow. The microprocessor in the electronics housing also calculates a compressibility factor and a discharge coefficients according to a polynomials of specific forms. The boss is integral to the sensor module housing and is adapted to fit either shielded twisted pair cabling or conduit.
摘要翻译：双线变送器感应过程流体的差压，绝对压力和过程温度。该信息可用于提供代表通过管道的质量流量的输出。变送器具有连接到传感器模块外壳的电子模块外壳。传感器模块壳体包含用于压力的所有传感器，并且包括用于接收代表温度或压力信号的信号的凸台输入。三个过程变量被适当地数字化，并由包括用于计算质量流量的微处理器的电子设备外壳中的电子电路板接收。电子壳体中的微处理器还根据特定形式的多项式计算压缩系数和放电系数。凸台是传感器模块外壳的一部分，适用于屏蔽双绞线电缆或导线。

64. 外观设计

USD317266S Pressure transmitter housing 失效
公开(公告)号：USD317266S
公开(公告)日：1991-06-04
申请号：US184695
申请日：1988-04-22
申请人： David A. Broden , David W. Lee , Timothy A. Miller , Debra K. Zeller
设计人： David A. Broden , David W. Lee , Timothy A. Miller , Debra K. Zeller

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