公开(公告)号：EP2859558A1

公开(公告)日：2015-04-15

申请号：EP13803735.3

申请日：2013-06-03

申请人： Rosemount Inc.

发明人： HAUSLER, George Charles ,  SCHWARTZ, Daniel Ronald ,  THOMPSON, Tyler Matthew

IPC分类号： H01B7/17

CPC分类号： G01D11/26 ,  G01D11/245 ,  G01D21/00

摘要： An environmental seal between two compartments, such as in a process transmitter, linked by a passageway contains an electrical cable. The seal includes a stop, a cable gland body, a compression bushing, a cable gland nut, and a first elastomeric seal. The stop projects from an interior surface of the passageway. The cable gland body is in contact with the stop and encircles a portion of the electrical cable. The compression bushing is within the cable gland body and encircles the portion of the electrical cable. The cable gland nut compresses the compression bushing and seals the compression bushing against the electrical cable and against an interior surface of the cable gland body. The first elastomeric seal seals between an exterior surface of the cable gland body and the interior surface of the passageway.

摘要翻译： 两个隔间之间的环境密封件，例如在由通道连接的过程变送器中的环境密封件包含电缆。 密封件包括止动件，电缆密封套本体，压缩衬套，电缆密封套螺母和第一弹性密封件。 停止从通道的内部表面突出。 电缆接头体与止动件接触并且环绕电缆的一部分。 压缩衬套位于电缆接头体内，并且环绕电缆部分。 电缆密封螺母压缩压缩衬套，并将压缩套管密封抵靠电缆并抵靠电缆密封套体的内表面。 第一弹性体密封件密封在电缆密封套本体的外表面和通道的内表面之间。

公开(公告)号：EP2856085A1

公开(公告)日：2015-04-08

申请号：EP13720669.4

申请日：2013-04-22

申请人： Rosemount Inc.

发明人： SOFEN, Brian E. ,  NELSON, Richard L.

IPC分类号： G01F23/14

CPC分类号： G01F23/14 ,  G01F23/0084 ,  G01F23/18 ,  G06F17/40 ,  G06F19/00

摘要： A process variable transmitter system for sensing a first pressure at a first location and second pressure at a second location, includes a first transmitter (110) having a first pressure sensor (202) configured to sense the first pressure and first analog output stage (204) coupled to the first sensor (202) configured to provide an analog output signal related to the first pressure. A second pressure transmitter (112) includes a second pressure sensor (202) configured to sense the second pressure and spaced apart from the first pressure sensor (202). A second analog output stage provides an analog output related to the second pressure. An analog processing stage provides a processed output related to the first and second pressures. A two-wire output (140) is configured to provide an analog current output on a two-wire process control loop based upon the processed output.

公开(公告)号：EP2726826A4

公开(公告)日：2015-04-01

申请号：EP12804181

申请日：2012-06-12

申请人： ROSEMOUNT INC

发明人： ROVNER BRUCE

IPC分类号： G01F1/56 ,  G01F1/58 ,  G01F1/60

CPC分类号： G01F1/58 ,  G01F1/60

公开(公告)号：EP2850439A1

公开(公告)日：2015-03-25

申请号：EP13791482.6

申请日：2013-05-01

申请人： Rosemount Inc.

发明人： MIKOLICHEK, Michael ,  ROGERS, Steven, Bruce

IPC分类号： G01P5/00

摘要： A magnetic flowmeter sensor includes two sensor faces, a conduit, a liner lining the conduit, and mechanical fasteners. The sensor faces are on each end of the sensor for connecting the sensor to the process fluid flow. The conduit connects the two sensor faces for conducting the process fluid flow through the sensor. The liner extends across at least a portion of each sensor face at each end of the flowmeter sensor to form a planar sealing surface on each end of the sensor. The liner includes holes through which the mechanical fasteners pass to mechanically attach the liner to the flowmeter sensor to prevent shifting of the liner. The mechanical fasteners do not extend beyond the planar sealing surfaces.

公开(公告)号：EP2841879A1

公开(公告)日：2015-03-04

申请号：EP12790981.0

申请日：2012-04-23

申请人： Rosemount Inc.

发明人： YERYOMENKO, Sergey Valeryevich ,  REPYEVSKY, Vladimir Victorovich

IPC分类号： G01D3/02 ,  G01D3/036

CPC分类号： G05B19/02 ,  G01D3/021 ,  G01D3/022 ,  G01D3/0365

摘要： A process variable transmitter includes a process variable sensor having a process variable sensor output related to a sensed process variable. Analog compensation circuitry is configured to receive the process variable sensor output and responsively provide a compensated process variable sensor output based upon a compensation function which is responsive to a control input. Output circuitry provides an output based upon the compensated process variable. Digital control circuitry is coupled to the analog compensation circuitry providing a control output which is applied to the control input of the analog compensation circuitry to thereby control the compensation function.

公开(公告)号：EP2621665B1

公开(公告)日：2015-03-04

申请号：EP11770272.0

申请日：2011-09-29

申请人： Rosemount, Inc.

发明人： PETERSEN, Eric, P. ,  SAMPSON, Daniel, S.

IPC分类号： B23K26/28 ,  B23K31/02 ,  B23K33/00 ,  G01N1/28 ,  G01N1/32 ,  G09B25/02

CPC分类号： G09B25/02 ,  B23K26/282 ,  B23K31/02 ,  B23K31/12 ,  B23K33/004 ,  B23K2201/06 ,  B23K2201/36

公开(公告)号：EP1883916B1

公开(公告)日：2015-01-28

申请号：EP06771538.3

申请日：2006-05-26

申请人： Rosemount, Inc.

发明人： SCHNAARE, Theodore, H. ,  OSTBY, Philip, G. ,  SIERRA, Gabriel, L.

IPC分类号： H04Q9/00 ,  G08C17/02

CPC分类号： H04Q9/00 ,  G08C17/02 ,  H04Q2209/30 ,  H04Q2209/43 ,  H04Q2209/823 ,  H04Q2209/86

公开(公告)号：EP2805142A1

公开(公告)日：2014-11-26

申请号：EP12729722.4

申请日：2012-05-28

申请人： Rosemount Inc.

发明人： ARUNACHALAM, Jawahar ,  KASTURI, Udayashankar Bangalore

IPC分类号： G01L27/00 ,  G01D3/08 ,  G01D21/00

CPC分类号： G01R31/021 ,  G01D3/08 ,  G01L27/007

摘要： An industrial process field device having a piezoelectric transducer performs self-testing of the condition of the piezoelectric transducer during a self-test mode. A charging current is supplied to the piezoelectric transducer, and voltage on the piezoelectric transducer as a result of the charging current is monitored. A diagnostic test result indicating condition of the piezoelectric transducer is produced based on the magnitude of the voltage.

摘要翻译： 具有压电换能器的工业过程现场设备在自检模式期间对压电换能器的状态进行自我测试。 向压电换能器提供充电电流，并且监视作为充电电流的结果的压电换能器上的电压。 基于电压的大小产生表示压电换能器的状态的诊断测试结果。

公开(公告)号：EP2786483A1

公开(公告)日：2014-10-08

申请号：EP12852620.9

申请日：2012-11-14

申请人： Rosemount Inc.

发明人： JOHNSON, James A. ,  NELSON, Richard

IPC分类号： H03D7/00

CPC分类号： G01F1/075 ,  G01F1/115 ,  G01F1/60 ,  G01F15/063

摘要： An electronic circuit for converting higher-frequency output signals from a sensor into lower-frequency input signals for a discrete input wireless transmitter. The circuit includes a differential amplifier, a digital comparator, a digital frequency divider, and a transistor switch. The differential amplifier amplifies the sensor signals as a function of a frequency of the sensor signals. The digital comparator generates a square wave signal by comparing the amplified sensor signals to a fixed reference voltage. The digital frequency divider generates a lower-frequency signal by dividing the square wave signal. The transistor switch generates the lower-frequency input signals for the discrete input wireless transmitter by switching as a function of the lower-frequency signal from the digital frequency divider.

公开(公告)号：EP2771748A1

公开(公告)日：2014-09-03

申请号：EP12787964.1

申请日：2012-10-22

申请人： Rosemount Inc.

发明人： ARUNACHALAM, Jawahar ,  KASTURI, Udayashankar, Bangalore

IPC分类号： G05B19/042

CPC分类号： G05B19/0423 ,  G05B2219/25428 ,  Y02P80/114

摘要： A wireless industrial process field device for use in controlling or monitoring a process variable of an industrial process includes a process interface element configured to sense or control the process variable of the industrial process. Process device circuitry includes a process interface circuit configured to measure or control the process variable of the industrial process with the process interface element. Wireless communication circuitry is configured for wireless communication. Power supply circuitry is configured to provide power to the process device circuitry from a power storage element at an output voltage. A low drop out (LDO) voltage regulator is configured to reduce the output voltage. A boost converter is configured to increase the output voltage.