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1. 发明授权

US06473711B1 Interchangeable differential, absolute and gage type of pressure transmitter 有权
标题翻译：可互换的差压，绝对和量规型压力变送器
公开(公告)号：US06473711B1
公开(公告)日：2002-10-29
申请号：US09373930
申请日：1999-08-13
申请人： Fred C. Sittler , Stanley E. Rud, Jr. , Carl R. Gansen
发明人： Fred C. Sittler , Stanley E. Rud, Jr. , Carl R. Gansen
IPC分类号： G01L1300
CPC分类号： G01L15/00 , Y10T137/87249
摘要： A pressure transmitter with first and second absolute pressure sensors receives process pressures from corresponding first and second process inlets. A transmitter circuit coupled to the first and second absolute pressure sensors generates a differential pressure type output. A third absolute pressure sensor coupled to the transmitter circuit receives atmospheric pressure from a third inlet. The transmitter circuit generates a second type of transmitter output that can be a gage or absolute pressure type. Single crystal. sapphire pressure sensors are preferred to provide enough accuracy for measuring accurately over 200:1 pressure range.
摘要翻译：具有第一和第二绝对压力传感器的压力变送器接收来自相应的第一和第二进程入口的过程压力。耦合到第一和第二绝对压力传感器的发射器电路产生压差型输出。耦合到发射器电路的第三绝对压力传感器从第三入口接收大气压力。发射机电路产生可以是量规或绝对压力类型的第二类型的发射器输出。单晶。优选的蓝宝石压力传感器提供足够的精度用于精确测量超过200：1的压力范围。

2. 发明授权

US06612174B2 Optical pressure sensor 有权
公开(公告)号：US06612174B2
公开(公告)日：2003-09-02
申请号：US09780148
申请日：2001-02-09
申请人： Fred C. Sittler , Charles R. Willcox , Stanley E. Rud, Jr.
发明人： Fred C. Sittler , Charles R. Willcox , Stanley E. Rud, Jr.
IPC分类号： G01L900
CPC分类号： G01L9/0007 , G01L9/0055 , G01L9/0072 , G01L9/0073 , G01L9/0075 , G01L9/0076 , G01L11/02 , G01L13/026
摘要： A pressure sensor configured to sense an applied pressure, comprising a diaphragm support structure, a diaphragm coupled to the diaphragm support structure and configured to deflect in response to applied pressure, a moveable member coupled to the diaphragm and configured to move in response to deflection of the diaphragm, and an optical interference element coupled to the moveable member and configured to interfere with incident light, wherein the interference is a function of position of the moveable member.

3. 发明授权

US06516671B2 Grain growth of electrical interconnection for microelectromechanical systems (MEMS) 有权
标题翻译：微机电系统（MEMS）电互连的晶粒生长
公开(公告)号：US06516671B2
公开(公告)日：2003-02-11
申请号：US09755346
申请日：2001-01-05
申请人： Mark G. Romo , Stanley E. Rud, Jr. , Mark A. Lutz , Fred C. Sittler , Adrian C. Toy
发明人： Mark G. Romo , Stanley E. Rud, Jr. , Mark A. Lutz , Fred C. Sittler , Adrian C. Toy
IPC分类号： G01L912
CPC分类号： G01L9/0075 , B81B7/0006
摘要： A sensor has an electrical interconnect grown in a cavity between first and second layers that are bonded together. Electrically conductive grain growth material is selectively deposited on at least one of two electrically conductive film interconnect regions that face one another across the cavity. The grain growth material is then grown upon predetermined conditions to form the electrical interconnect between the two interconnect regions. A sensor element deposited in the cavity is electrically coupled between the layers by the interconnect. The grain growth material can be tantalum that is heated after the layers are bonded to grow grains that interconnect the electrically conductive films.
摘要翻译：传感器具有在第一和第二层之间的空腔中生长的电互连结合在一起。导电晶粒生长材料被选择性地沉积在两个相互面对的导电膜互连区域中的至少一个上。晶粒生长材料然后在预定条件下生长以形成两个互连区域之间的电互连。沉积在空腔中的传感器元件通过互连电耦合在层之间。晶粒生长材料可以是在层被结合之后被加热以生长互连导电膜的晶粒的钽。

4. 发明授权

US07347099B2 Pressure transducer with external heater 有权
标题翻译：带外部加热器的压力传感器
公开(公告)号：US07347099B2
公开(公告)日：2008-03-25
申请号：US10893189
申请日：2004-07-16
申请人： Wesley E. Sund , Christina A. Nord , Fred C. Sittler , John McIntire
发明人： Wesley E. Sund , Christina A. Nord , Fred C. Sittler , John McIntire
IPC分类号： G01L9/00 , G00L9/00
CPC分类号： G01L19/0627
摘要： An improved pressure transducer is disclosed. The transducer includes a connector, an enclosure, a sensor portion, and an external heater disposed to heat the sensor portion. In some aspects, the sensor portion includes a sensor constructed from a brittle material and does not employ any fill fluid within the sensor. In another aspect, the invention includes a kit that adapts non-heated high purity vacuum transducers for heated use. The kit includes a connector portion and a heater portion that is coupled to the connector portion. The connector portion may also include one or more indicators.
摘要翻译：公开了一种改进的压力传感器。换能器包括连接器，外壳，传感器部分和设置为加热传感器部分的外部加热器。在一些方面，传感器部分包括由脆性材料构成的传感器，并且在传感器内不使用任何填充流体。在另一方面，本发明包括适用于未加热的高纯度真空换热器以用于加热使用的试剂盒。套件包括连接器部分和耦合到连接器部分的加热器部分。连接器部分还可以包括一个或多个指示器。

5. 发明授权

US06561038B2 Sensor with fluid isolation barrier 有权
公开(公告)号：US06561038B2
公开(公告)日：2003-05-13
申请号：US09978311
申请日：2001-10-15
申请人： James L. Gravel , Fred C. Sittler , David A. Broden
发明人： James L. Gravel , Fred C. Sittler , David A. Broden
IPC分类号： G01L700
CPC分类号： G01L9/0086 , G01L9/0075 , G01L19/0084 , G01L19/0645 , G01L19/14
摘要： A sensor capsule suitable for use in an industrial process fluid transmitter. The sensor capsule includes a block that has a sensor mounting hole. The block includes two half-blocks joined along mating surfaces passing lengthwise through the sensor mounting hole. A sensor has a sensor neck passing through the sensor mounting hole. The sensor neck is sealed to the sensor mounting hole.

6. 发明授权

US06520020B1 Method and apparatus for a direct bonded isolated pressure sensor 有权
标题翻译：用于直接粘合隔离压力传感器的方法和装置
公开(公告)号：US06520020B1
公开(公告)日：2003-02-18
申请号：US09478383
申请日：2000-01-06
申请人： Mark A. Lutz , Roger Frick , Fred C. Sittler , Adrian C. Toy
发明人： Mark A. Lutz , Roger Frick , Fred C. Sittler , Adrian C. Toy
IPC分类号： G01L700
CPC分类号： G01L9/0075
摘要： A pressure sensor integrally formed in the shape of a beam around a central channel. The beam has an integral blind end that is pressurized by the fluid. The beam has an opposite end that is shaped to provide a stepped corner with a gap opening at the base of the stepped corner, where the gap and isolated from the fluid. A sensing film in the channel adjacent the blind end has an electrical parameter that varies with pressure and electrical leads that extend from the channel and out the gap. A seal fills the gap around the leads and the seal fills a portion of the stepped corner. The sensor is preferably formed by direct bonding of single crystal alumina layers. Applications include industrial pressure transmitters, aerospace and turbine engine pressure sensing.
摘要翻译：压力传感器一体形成为围绕中心通道的梁的形状。梁具有由流体加压的整体的盲端。梁具有相对的端部，其形状设置成在阶梯形拐角的基部处提供间隙开口的阶梯形拐角，其中间隙与流体隔离。与盲端相邻的通道中的感测膜具有随着压力变化的电参数，以及从通道延伸出间隙的电引线。密封件填充引线周围的间隙，并且密封件填充阶梯形拐角的一部分。该传感器优选通过直接结合单晶氧化铝层来形成。应用包括工业压力变送器，航空航天和涡轮发动机压力传感。

7. 发明授权

US06484585B1 Pressure sensor for a pressure transmitter 有权
标题翻译：用于压力变送器的压力传感器
公开(公告)号：US06484585B1
公开(公告)日：2002-11-26
申请号：US09603640
申请日：2000-06-26
申请人： Fred C. Sittler , Roger Frick
发明人： Fred C. Sittler , Roger Frick
IPC分类号： G01L912
CPC分类号： G01L9/0075 , G01L9/125 , G01L19/04
摘要： A pressure transmitter in a process control system for transmitting pressure on a process control loop includes a transmitter housing, an isolation diaphragm configured to couple to a process fluid, and a pressure sensor body of a brittle corrosion resistant material operably coupled to the housing and positioned in the housing. The pressure sensor comprising a first portion bonded to a second portion by a fusion bond, the fusion bond substantially free of foreign material. An isolation fluid is configured to fluidically couple the pressure sensor body to the isolation diaphragm to thereby couple the pressure sensor to a pressure of the process fluid. Measurement circuitry in the transmitter housing coupled to the pressure sensor provides an output which is a function of capacitance, a loop interface in the transmitter housing coupled to the measurement circuitry configured to transmit a pressure related signal on the process control loop as a function of the pressure.
摘要翻译：用于在过程控制回路上传送压力的过程控制系统中的压力变送器包括变送器壳体，被配置成耦合到过程流体的隔离膜，以及可操作地耦合到壳体并定位的耐脆性腐蚀材料的压力传感器本体在房屋里所述压力传感器包括通过熔接键合到第二部分的第一部分，所述熔接基本上不含异物。隔离流体被配置成将压力传感器主体流体地耦合到隔离膜片，从而将压力传感器耦合到过程流体的压力。耦合到压力传感器的变送器外壳中的测量电路提供与电容有关的输出，该变送器壳体中的环路接口耦合到测量电路，该测量电路经配置以在过程控制回路上传递压力相关信号，作为压力。

8. 发明授权

US5707150A Apparatus for computing BTU content in a sample of gas 失效
标题翻译：用于计算气体样品中BTU含量的装置
公开(公告)号：US5707150A
公开(公告)日：1998-01-13
申请号：US531218
申请日：1995-09-19
申请人： Fred C. Sittler
发明人： Fred C. Sittler
IPC分类号： G01N33/22 , G01N25/22
CPC分类号： G01N33/225
摘要： An apparatus for measuring the BTU content of a gas includes a source of combustion air, a detector and a sample loop or tube connected to a six-port switching valve. The switching valve allows accurate and repeatable quantities of the gas to be obtained and mixed with the combustion air. In a second embodiment, the apparatus includes a second switching valve to obtain samples of the gas at a second pressure and calculate the BTU content at the second pressure. By measuring the BTU content at two different pressures, a quantity related to the volumetric flow of the gas between the two pressures can also be calculated.
摘要翻译：用于测量气体的BTU含量的装置包括燃烧空气源，检测器和连接到六口转换阀的样品环路或管。切换阀允许获得准确和可重复的气体量并与燃烧空气混合。在第二实施例中，该装置包括第二切换阀，以获得在第二压力下的气体样品，并计算第二压力下的BTU含量。通过测量两个不同压力下的BTU含量，也可以计算与两个压力之间的气体体积流量相关的量。

9. 发明授权

US5482678A Organic chemical sensor 失效
标题翻译：有机化学传感器
公开(公告)号：US5482678A
公开(公告)日：1996-01-09
申请号：US337135
申请日：1994-11-10
申请人： Fred C. Sittler
发明人： Fred C. Sittler
IPC分类号： G01B7/16 , G01M3/04 , G01N19/10
CPC分类号： G01M3/045 , G01B7/16 , G01N19/10 , Y10T436/21
摘要： In this invention, a first sensor senses an organic gas, liquid or vapor and includes a first support having a first support surface with a layer of material fastened to it. In the presence of liquid, gas or vapor, the material swells and expands so as to vary at least one of its dimensions. Such expansion develops a stress at an interface between the first support surface and the material, and strain sensitive resistors detect the stress and produce an output which varies as a function of the stress at the interface. One of a pair of piezoresistors is located where there is increased stress and the other piezoresistor is disposed where there is reduced stress. If desired, a second sensor similar in structure to the first but exposed only to a reference organic liquid, gas or vapor temperature compensates the first. In another embodiment of the invention, an organic chemical responsive sensor includes a first support having a first support surface and a first capacitor plate fastened to the first support. A second support coupled to the first support spaces a second capacitor plate a distance away from the first plate. A material which expands in the presence of organic liquid, gas or vapor is applied to the first support surface so that upon expansion, the first support deflects and changes the distance between the two capacitor plates, thereby changing an electrical capacity between the plates. Another sensor of similar structure may optionally temperature compensate the first.
摘要翻译：在本发明中，第一传感器感测有机气体，液体或蒸气，并且包括具有第一支撑表面的第一支撑件，第一支撑表面具有固定到其上的材料层。在存在液体，气体或蒸汽的情况下，材料膨胀和膨胀以改变其尺寸中的至少一个。这种膨胀在第一支撑表面和材料之间的界面处产生应力，并且应变敏感电阻器检测应力并产生随着界面处的应力的函数而变化的输出。一对压敏电阻器之一位于应力增加的地方，另一个压敏电阻器设置在应力减小的地方。如果需要，第二传感器在结构上与第一传感器类似，但仅暴露于参考有机液体，气体或蒸汽温度补偿第一传感器。在本发明的另一个实施例中，有机化学响应传感器包括具有第一支撑表面的第一支撑件和紧固到第一支撑件的第一电容器板。耦合到第一支撑件的第二支撑件将离开第一板的距离离开第二电容器板。在有机液体，气体或蒸气的存在下膨胀的材料被施加到第一支撑表面，使得在膨胀时，第一支撑件偏转并改变两个电容器板之间的距离，从而改变板之间的电容。类似结构的另一传感器可以可选地温度补偿第一。

10. 发明授权

US08898036B2 Process variable transmitter with acceleration sensor 有权
标题翻译：具有加速度传感器的过程变量变送器
公开(公告)号：US08898036B2
公开(公告)日：2014-11-25
申请号：US11834221
申请日：2007-08-06
申请人： Fred C. Sittler , Robert C. Hedtke
发明人： Fred C. Sittler , Robert C. Hedtke
IPC分类号： G06F11/30 , G01F1/20 , G01H1/00 , G01M13/02
CPC分类号： G01H1/00 , G01M13/028
摘要： A process variable transmitter for use in an industrial process control or monitoring system includes a transmitter housing and a process variable sensor having a sensor output related to a process variable. An accelerometer is coupled to the transmitter and provides an accelerometer output related to acceleration. Diagnostic circuitry provides a diagnostic output as a function of the sensor output and the accelerometer output.
摘要翻译：用于工业过程控制或监控系统的过程变量变送器包括变送器壳体和具有与过程变量相关的传感器输出的过程变量传感器。加速度计耦合到发射机，并提供与加速有关的加速度计输出。诊断电路根据传感器输出和加速度计输出提供诊断输出。

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