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    • 111. 发明授权
    • Differential pressure transducer
    • 差压传感器
    • US5796007A
    • 1998-08-18
    • US710814
    • 1996-09-23
    • Louis J. PanagotopulosHerman W. Erichsen
    • Louis J. PanagotopulosHerman W. Erichsen
    • G01L9/00G01L13/02
    • G01L9/006G01L9/0089
    • A differential pressure transducer for measuring a pressure differential between a first pressure source and a second pressure source. The differential pressure transducer includes a displacement element and a sensing element coupled to the displacement element. The displacement element moves in a linear direction and deflects the sensing element to provide a signal that is proportional to the movement of the displacement element when the first and second ends are subjected to the pressures at the pressure sources. The differential pressure transducer can also include a force transfer beam that connects the displacement element and the sensing element. The sensing element can include a sensing beam and a strain gauge mounted on the beam to provide an electrical signal proportional to the strain in the beam induced by the deflection of the beam. The force transfer beam and the sensing element can be portions of a unitary member formed as a stamped part. The displacement element can be a single piston or it can include a pair of force collectors attached to opposing sides of the force transfer beam. Additionally, the transducer can include overload protection to limit the movement of the displacement element and the force transfer beam. Further, the strain gauge is disposed on a portion of the beam that is externally accessible so as to improve the assembly and maintenance of the transducer.
    • 一种差压传感器,用于测量第一压力源和第二压力源之间的压力差。 压差传感器包括位移元件和联接到位移元件的感测元件。 位移元件在线性方向上移动并且使感测元件偏转以提供当第一和第二端受到压力源处的压力时位移元件的移动成比例的信号。 差压传感器还可以包括连接位移元件和传感元件的力传递梁。 感测元件可以包括传感光束和安装在光束上的应变计,以提供与由光束的偏转引起的光束中的应变成比例的电信号。 力传递束和感测元件可以是形成为冲压部件的整体构件的部分。 位移元件可以是单个活塞,或者它可以包括附接到力传递梁的相对侧的一对力收集器。 此外,换能器可以包括过载保护以限制位移元件和力传递梁的移动。 此外,应变仪设置在外部可接近的梁的一部分上,以便改进换能器的组装和维护。
    • 112. 发明授权
    • Silicone oil-filled semiconductor pressure sensor
    • 硅油填充半导体压力传感器
    • US5625151A
    • 1997-04-29
    • US456306
    • 1995-06-01
    • Yasuo Yamaguchi
    • Yasuo Yamaguchi
    • G01L9/04G01L9/00G01L19/04G01L23/24G01L13/02G01L7/00G01L15/00
    • G01L23/24G01L19/04G01L19/0645G01L19/147
    • A semiconductor pressure sensor that can be inexpensively manufactured with a reduced number of assembly steps and without using spacers includes a stem having an upper surface on which are mounted a pedestal and a semiconductor pressure sensor chip of substantially the same area as that of the stem upper surface. The semiconductor pressure sensor chip and the pedestal include aligned lead insertion holes through which leads are inserted. While spacers have been used in the prior art to reduce vacant space in the sensor that is filled with silicone oil, the spacers can be dispensed with in the invention because the semiconductor pressure sensor chip and the pedestal have areas substantially the same as the stem upper surface and serve as spacers.
    • 可以以少量的组装步骤廉价地制造并且不使用间隔件的半导体压力传感器包括具有上表面的杆,座上安装有基座和半导体压力传感器芯片,其具有与杆上部基本相同的面积 表面。 半导体压力传感器芯片和基座包括对准的引线插入孔,通过引线插入引线。 虽然在现有技术中已经使用间隔物来减少填充有硅油的传感器中的空白空间,但是由于半导体压力传感器芯片和基座具有与杆上部基本相同的区域,因此在本发明中可以省略间隔件 表面并用作间隔物。
    • 113. 发明授权
    • Coplanar pressure sensor mounting for remote sensor
    • 用于远程传感器的共面压力传感器安装
    • US5596147A
    • 1997-01-21
    • US559810
    • 1995-11-17
    • Douglas W. WildaCharles E. Lane, IIIMilton W. Mathias
    • Douglas W. WildaCharles E. Lane, IIIMilton W. Mathias
    • G01L9/00G01L13/02
    • G01L19/148G01L13/025G01L19/0038G01L19/0645G01L19/142
    • A pressure transmitter comprises a first housing having a first and second diaphragm for receiving a first and second process fluid under a first and second pressure, respectively. The first and second diaphragm is deflected in response to the first and second pressure of the process fluid. A second housing includes a printed wire board. A first and second capillary tube is included, the first capillary tube being operatively coupled to the first diaphragm and the second capillary tube being operatively coupled to the second diaphragm, each corresponding capillary tube having an internal fluid therein. A sensor package, having a sensor element, is mounted internally within the second housing, and is coupled to the first and second capillary tubes such that the sensor element provides a first signal which is coupled to electrical circuit components mounted on the printed wire board to output a signal representative of the differential pressure of the process fluid.
    • 压力变送器包括具有第一和第二隔膜的第一壳体,用于分别在第一和第二压力下接收第一和第二处理流体。 第一和第二隔膜响应于工艺流体的第一和第二压力而偏转。 第二壳体包括印刷线路板。 包括第一和第二毛细管,第一毛细管可操作地耦合到第一隔膜,第二毛细管可操作地连接到第二隔膜,每个相应的毛细管在其中具有内部流体。 具有传感器元件的传感器封装件内部安装在第二壳体内,并且耦合到第一和第二毛细管,使得传感器元件提供第一信号,其耦合到安装在印刷线路板上的电路元件 输出代表过程流体压差的信号。
    • 114. 发明授权
    • Differential pressure transmitter having an integral flame arresting
body and overrange diaphragm
    • 差压变送器具有一体式阻火器和超量程隔膜
    • US5583294A
    • 1996-12-10
    • US294090
    • 1994-08-22
    • Edwin L. Karas
    • Edwin L. Karas
    • G01L13/00G01L9/00G01L9/06G01L13/02G01L19/00G01L19/06G01L7/02
    • G01L19/147G01L13/026G01L19/0046G01L19/0618G01L19/0663G01L19/0681
    • A pressure transmitter apparatus having a Unitary body portion, separate diaphragms and flange elements and disposed within the body, a first and second normally vertical pressure passage. The first and second pressure passageways communicate respectively between first and second pressure openings extending-normally horizontally through the body portion, and a transducer mounting element. The mounting element, coupled to the body portion and located above the pressure passageways, mounts a transducer that generates a differential pressure signal. One or a pair of diaphragm elements are configured to form first and second process diaphragms, closing first and second pressure openings. The flange element overlies the diaphragm element and is removably and replaceably secured to the body portion. The pressure transmitter also includes a flame retardation element that is disposed within at least one of the pressure passageways, and an overrange protection element, integrally arranged with the unitary body portion, that protects the transducer from overrange pressure fluctuations. Special flange plane geometries optimize size and sensitivity of isolation diaphragms.
    • 一种压力变送器装置,具有一体式主体部分,分离的膜片和凸缘元件,并设置在主体内,第一和第二正常垂直的压力通道。 第一和第二压力通道分别在通过主体部分正常水平延伸的第一和第二压力开口之间连通,以及换能器安装元件。 耦合到主体部分并且位于压力通道上方的安装元件安装产生差压信号的换能器。 一个或一对隔膜元件构造成形成第一和第二过程隔膜,关闭第一和第二压力开口。 凸缘元件覆盖在隔膜元件上,并可拆卸地且可更换地固定在主体部分上。 压力变送器还包括设置在压力通道中的至少一个压力通道中的阻燃元件和与整体主体部分整体设置的超范围保护元件,其保护换能器免受过大的压力波动的影响。 特殊的法兰面几何尺寸优化隔离膜的尺寸和灵敏度。
    • 118. 发明授权
    • Method of decoding a spectrally modulated light signal
    • 解码光谱调制光信号的方法
    • US5400140A
    • 1995-03-21
    • US260204
    • 1994-06-10
    • James S. Johnston
    • James S. Johnston
    • G01D5/26G01L9/00G01L11/02G01L13/02G01B9/00
    • G01L9/0079G01D5/266G01L11/02
    • In a method of analyzing a spectrally modulated light signal received from an interferometric transducer the value of an optical path difference associated with a parameter to be remotely sensed is encoded as a characteristic frequency of spectral modulation in the received light. The intensity of the received light is measured at a number of wavelengths within a selected range of wavelengths to obtain data defining a measured spectrum. Reference data is generated to represent a theoretical spectrum corresponding to a nominal optical path difference, the reference data being generated for a greater range of wavelengths than the selected range of wavelengths of the measured spectrum. The measured spectrum is correlated with successive portions of the reference data to identify a portion of the reference data exhibiting correlation with the measured spectrum, and an output signal is then generated which is representative of the location of the correlating portion within the wavelength range of the reference data. The method provides improved resolution for remote sensing of parameters such as pressure.
    • 在分析从干涉测量传感器接收的光谱调制光信号的方法中,与待遥测的参数相关联的光程差的值被编码为所接收的光中的光谱调制的特征频率。 在选定的波长范围内的多个波长处测量接收光的强度,以获得定义测量光谱的数据。 生成参考数据以表示对应于标称光程差的理论光谱,该参考数据是在比所测量的光谱的选定波长范围更大的波长范围内生成的。 测量的频谱与参考数据的连续部分相关,以识别与测量的频谱呈现相关性的参考数据的一部分,然后产生代表相关部分在波长范围内的位置的输出信号 参考数据。 该方法提供了用于遥感诸如压力等参数的改进的分辨率。
    • 119. 发明授权
    • Pre-stressed pressure transducer and method of forming same
    • 预应力压力传感器及其形成方法
    • US5349491A
    • 1994-09-20
    • US973088
    • 1992-11-06
    • Horst Obermeier
    • Horst Obermeier
    • G01L9/00G01L13/02H01G7/00
    • G01L9/0075G01L13/025
    • A pre-stressed capacitive pressure transducer is disclosed which is capable of withstanding an applied high pressure. The transducer incorporates a pre-stress mechanism comprising upper and lower pre-stress members which are welded together to apply a compressive force to the transducer sealing means. The compressive force serves to improve the transducer seal resistance to high pressure damage. The pre-stress mechanism may also be adapted to provide additional overpressure protection by bottoming out against the transducer input flange. A method of forming such a pre-stressed transducer is also disclosed. The pre-stress mechanism and method can be easily adapted to meet the requirements of a wide variety of transducers without requiring modification of the transducer internal design parameters.
    • 公开了一种能够承受施加的高压的预应力电容式压力传感器。 换能器包括预应力机构,其包括上和下预应力构件,其被焊接在一起以向换能器密封装置施加压缩力。 压缩力用于提高换能器密封抵抗高压损伤。 预应力机构还可以适于通过向下抵靠换能器输入法兰提供额外的超压保护。 还公开了形成这种预应力换能器的方法。 预应力机构和方法可以容易地适应于满足各种换能器的要求,而不需要修改换能器内部设计参数。
    • 120. 发明授权
    • Resistive strain gauge pressure sensor with increased sensitivity
    • 电阻应变计压力传感器灵敏度增加
    • US5317920A
    • 1994-06-07
    • US989211
    • 1992-12-11
    • James R. Kremidas
    • James R. Kremidas
    • G01L9/00G01L7/08G01L9/06G01L13/02
    • G01L9/0051G01L19/003G01L19/0038G01L19/0084G01L19/142G01L19/143G01L9/0055
    • A resistive strain gauge pressure sensor including upper and lower housings coacting to define a pressure chamber within the housing. A board member is clamped between the housings and defines a diaphragm portion which extends across the pressure chamber to divide the pressure chamber into upper and lower chamber portions. All of the circuitry of the sensor is screen printed onto the lower planar face of the board member including the various resistor elements of the strain gauge assembly, the various elements of the conditioning circuit receiving the output of the strain gauge assembly, and the various further leads required to connect the circuitry elements to the terminals of the sensor. The sensor terminals are provided by a plurality of connector pins extending downwardly through the board member for connection at their respective lower ends to the circuitry provided on the lower face of the board member. Each resistor element of the strain gauge assembly is screen printed onto a pad which is screen printed onto the diaphragm portion. The pads increase the strain experience by the resistors in response to a given deflection of the diaphragm and thereby increase the sensitivity of the sensor to a given pressure differential applied across the diaphragm.
    • 电阻式应变计压力传感器,包括上壳体和下壳体,共同作用以在壳体内限定压力室。 板构件被夹持在壳体之间并且限定了隔膜部分,隔膜部分延伸穿过压力室以将压力室分成上部和下部腔室部分。 传感器的所有电路被丝网印刷到包括应变计组件的各种电阻元件的板构件的下平面上,调节电路的各种元件接收应变仪组件的输出,以及各种其它 将电路元件连接到传感器的端子所需的导线。 传感器端子由多个连接器销提供,该连接器销向下延伸穿过该板构件,用于在它们各自的下端处连接到设置在该板构件的下表面上的电路。 应变计组件的每个电阻元件被丝网印刷到丝网印刷在隔膜部分上的垫上。 这些焊盘响应于膜片的给定偏转而增加电阻器的应变经验,从而增加传感器对施加在隔膜上的给定压力差的灵敏度。