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公开(公告)号：AU4024601A
公开(公告)日：2001-04-30
申请号：AU4024601
申请日：2000-09-19
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R , GOETZINGER CHARLES E
Abstract: A two-wire temperature transmitter performs thermocouple diagnostics on a thermocouple attached to the transmitter to determine if, and the extent to which, the thermocouple has degraded. Various methods of obtaining thermocouple resistance are also provided.
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公开(公告)号：BR9609268A
公开(公告)日：1999-05-11
申请号：BR9609268
申请日：1996-06-04
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
Abstract: A temperature transmitter in a process control system includes a temperature sensor which senses temperature and provides a sensor output related to sensed temperature. An analog-to-digital converter coupled to the sensor output provides a digitized output related to the sensor output. A microprocessor receives the digitized output, compensates the digitized output and provides a temperature output. Comparison circuitry compares the sensor output to a first threshold and provides an inhibit signal to the microprocessor if the sensor is outside of the first threshold.
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公开(公告)号：DE2746342C3
公开(公告)日：1993-12-02
申请号：DE2746342
申请日：1977-10-14
Applicant: ROSEMOUNT INC
Inventor： DOREMUS JOHN A , KIRKPATRICK WILLIAM R
Abstract: A positive temperature coefficient (PTC) resistance heater assembly is used in combination with an angle of attack vane to provide automatic means for maintaining the temperature of the vane at a level which will de-ice the vane. The heater assembly is embedded in a recess in the vane and is made up of a plurality of individual PTC resistors connected electrically and mechanically in parallel by flexible electrically conductive perforated strips which permit the individual resistors to move relative to each the other under thermal stress and which also permit the encapsulation of the resistors in a suitable thermally conductive, electrically oinsulative material that is sufficiently resilient to permit the individual resistors to expand and contract relative to the vane during use.
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公开(公告)号：DE3269927D1
公开(公告)日：1986-04-24
申请号：DE3269927
申请日：1982-04-06
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
Abstract: An air data sensor device, such as a pitot, total air temperature sensor, etc., includes an elongated probe having a sensor therein for sensing air flow parameters and a strut for positioning the probe in a desired position on an air vehicle. To avoid ice build-up on the device causing erroneous sensing of air flow parameters a substantially constant wattage electric resistive heater is provided in the probe for deicing. A PTC (positive temperature coefficient) resistive heater is disposed in the support at a location thermally isolated from the probe heater but in thermally conductive relationship to the external surface of the support. The PTC heater is connected in series with the probe heater and continuously varies heater power in response to the rate of heat dissipation at the external surface of the sensor device thereby preventing burn-out of the probe heater and erosion of the probe. A second constant wattage heater connected in parallel with the PTC heater is located within the probe and has a maximum rated power selected to insure that during conditions of minimum heat dissipation of the probe heater sufficient additional heat is supplied to the probe to perform the deicing function without raising the probe to damaging temperatures.
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公开(公告)号：DE60143295D1
公开(公告)日：2010-12-02
申请号：DE60143295
申请日：2001-05-08
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R , KARSCHNIA ROBER J , PELUSO MARCOS , DIMARCO STEVEN J , LENZ GARY A
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Patent Agency Ranking
公开(公告)号：SG128486A1
公开(公告)日：2007-01-30
申请号：SG200502950
申请日：2001-05-08
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R , KARSCHNIA ROBER J , PELUSO MARCOS , DIMARCO STEVEN J , LENZ GARY A
IPC: G05B15/00 , G05B19/00 , G05B19/05 , G06F1/16 , G06F1/18 , G06F3/05 , H05K5/00 , H05K7/00 , H05K7/14
Abstract: A two-wire field-mounted process device (16) with multiple isolated channels includes a channel that can be an input channel or an output channel. The given input or output channel can be coupled to multiple sensors or actuators (32, 34), respectively. The process device (16) is wholly powered by the two-wire process control loop (14). The process device (16) includes a controller (40) adapted to measure one or more characteristics of sensors (20, 22, 24, 26, 28, 30) coupled to an input channel (42, 44, 46) and to control actuators coupled to an output channel (48). The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands. The process device also includes a loop communicator (36) that is adapted to communicate over the two-wire loop.
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公开(公告)号：CA2073447A1
公开(公告)日：1991-08-22
申请号：CA2073447
申请日：1991-02-21
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
Abstract: PCT/US91/01210 A process transmitter (50) transmits a 4-20 mA current representing a sensed parameter to a loop (52) which energizes the transmitter (50). An output circuit (60) receives energization from the loop (52) and controls the 4-20 mA output as a function of a sensor data input. The output circuit (60) further generates a transformer driver output which also serves as a clock for isolated circuitry (106). A sensor circuit (82) generates a transformer driver output representing the sensed parameter. An isolation transformer (76) driven by the driver output excites the sensor circuit (82) and provides a clock reference as a function of the driver output oscillation to the sensor circuit (82). The isolation transformer (76) is a single coupling device which couples energization, clock reference, sensor data and programming data across an electrically insulating barrier between the output circuit (50) and the sensor circuit (82).
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公开(公告)号：BR8207580A
公开(公告)日：1983-03-29
申请号：BR8207580
申请日：1982-04-06
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
Abstract: An air data sensor device, such as a pitot, total air temperature sensor, etc., includes an elongated probe having a sensor therein for sensing air flow parameters and a strut for positioning the probe in a desired position on an air vehicle. To avoid ice build-up on the device causing erroneous sensing of air flow parameters a substantially constant wattage electric resistive heater is provided in the probe for deicing. A PTC (positive temperature coefficient) resistive heater is disposed in the support at a location thermally isolated from the probe heater but in thermally conductive relationship to the external surface of the support. The PTC heater is connected in series with the probe heater and continuously varies heater power in response to the rate of heat dissipation at the external surface of the sensor device thereby preventing burn-out of the probe heater and erosion of the probe. A second constant wattage heater connected in parallel with the PTC heater is located within the probe and has a maximum rated power selected to insure that during conditions of minimum heat dissipation of the probe heater sufficient additional heat is supplied to the probe to perform the deicing function without raising the probe to damaging temperatures.
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19.发明公开
公开(公告)号：EP0076306A4
公开(公告)日：1983-08-09
申请号：EP82901393
申请日：1982-04-06
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
CPC classification number: G01P5/165
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公开(公告)号：EP0518916A4
公开(公告)日：1992-10-19
申请号：EP91905145
申请日：1991-02-21
Applicant: ROSEMOUNT INC
Inventor： KIRKPATRICK WILLIAM R
IPC: G08C19/02
CPC classification number: G08C19/02 , H01F2019/085
Abstract: A process transmitter (50) transmits a 4-20 mA current representing a sensed parameter to a loop (52) which energizes the transmitter (50). An output circuit (60) receives energization from the loop (52) and controls the 4-20 mA output as a function of a sensor data input. The output circuit (60) further generates a transformer driver output which also serves as a clock for isolated circuitry (106). A sensor circuit (82) generates a transformer driver output representing the sensed parameter. An isolation transformer (76) driven by the driver output excites the sensor circuit (82) and provides a clock reference as a function of the driver output oscillation to the sensor circuit (82) . The isolation transformer (76) is a single coupling device which couples energization, clock reference, sensor data and programming data across an electrically insulating barrier between the output circuit (50) and the sensor circuit (82).
Abstract translation: 过程变送器（50）将表示感测参数的4-20mA电流传送给激励发送器（50）的回路（52）。 输出电路（60）接收来自回路（52）的通电并根据传感器数据输入控制4-20mA输出。 输出电路（60）还产生变压器驱动器输出，其也用作隔离电路（106）的时钟。 传感器电路（82）产生代表感测参数的变压器驱动器输出。 由驱动器输出驱动的隔离变压器（76）激励传感器电路（82），并将作为驱动器输出振荡的函数的时钟基准提供给传感器电路（82）。 隔离变压器（76）是单个耦合装置，其在输出电路（50）和传感器电路（82）之间的电绝缘屏障上耦合通电，时钟参考，传感器数据和编程数据。
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