公开(公告)号：US20040200289A1

公开(公告)日：2004-10-14

申请号：US10696126

申请日：2003-10-29

发明人： David L. Sherman ,  Tyler J. Bessette

IPC分类号： G01L009/00

CPC分类号： G01L19/14 ,  G01L19/0007 ,  G01L19/0672

摘要： A pressure instrument with a seal connection connecting a pressure gauge to a process. A pressure sensor located in a base of the seal connection is in data communication with the pressure gauge that is spaced apart from the pressure sensor. Embodiments are particularly applicable on sanitary seal connections or where a low measuring range or high accuracy is required. Embodiments can include, for example, digital pressure gauges, pressure transducers and transmitters with any seal connection.

摘要翻译： 一种压力仪表，具有将压力表连接到过程的密封连接。 位于密封连接的基座中的压力传感器与压力传感器间隔开的压力表数据通信。 实施例特别适用于卫生密封连接或需要低测量范围或高精度的场合。 实施例可以包括例如具有任何密封连接的数字压力计，压力传感器和发射器。

公开(公告)号：US20040200288A1

公开(公告)日：2004-10-14

申请号：US09989102

申请日：2001-11-21

发明人： Eamon P. Gleeson ,  Fei Han

IPC分类号： G01L009/00

CPC分类号： G01L19/0681 ,  F01D21/003 ,  F02C7/00 ,  F05D2270/14 ,  F05D2270/301 ,  G01L19/0007 ,  G01L19/0609

摘要： A dynamic pressure probe for a combustor comprising a holder body having a pressure sensing passage; a pressure sensor and a pressure chamber located in a housing portion arranged substantially perpendicularly to the pressure sensing passage; and wherein the pressure chamber communicates with the pressure sensing passage via a relatively small aperture in a wall separating the pressure chamber from the pressure sensing passage.

摘要翻译： 一种用于燃烧器的动态压力探测器，包括具有压力感测通道的保持器主体; 压力传感器和位于基本上垂直于压力感测通道设置的壳体部分中的压力室; 并且其中所述压力室经由所述压力室与所述压力感测通道分离的壁中的相对较小的孔与所述压力感测通道连通。

公开(公告)号：US20040159160A1

公开(公告)日：2004-08-19

申请号：US10483398

申请日：2004-01-12

发明人： Bjorn Erik Seeberg

IPC分类号： G01L009/00 ,  G01L009/16

CPC分类号： G01L9/0027

摘要： Pressure gauge preferably arranged to function on the outside of a measuring element (1), the measuring element having a central cavity (103) and being constituted by at least two parts (100A-B) which are tightly joined for creation of the cavity, and comprising sensor organs (11-14) for the mechanical state of stress of the measuring element during pressure influence. The two parts of the measuring element (100A-B) are manufactured in planar techniques, preferably by silicon or quarts with the cavity running in the longitudinal direction. The central cavity has a considerably greater height than width. The sensor organs (11-14) have form of piezo-resistive elements arranged near an outer (105) eventually inner surface of the measuring element.

摘要翻译： 压力计优选地布置成在测量元件（1）的外侧上起作用，所述测量元件具有中心空腔（103）并且由至少两个部分（100A-B）构成，所述至少两个部分（100A-B）紧密接合以形成所述腔体， 并且包括用于在压力影响期间测量元件的应力的机械状态的传感器器件（11-14）。 测量元件（100A-B）的两个部分以平面技术制造，优选地通过硅或石英，空腔沿纵向延伸。 中心腔具有比宽度大得多的高度。 传感器器官（11-14）具有布置在测量元件的外（105）最终内表面附近的压阻元件的形式。

公开(公告)号：US20040129083A1

公开(公告)日：2004-07-08

申请号：US10646368

申请日：2003-08-22

申请人： Weatherford/Lamb, Inc.

发明人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  James R. Dunphy ,  Michael A. Davis ,  Christopher J. Wright ,  Alan D. Kersey ,  Martin A. Putnam ,  Robert N. Brucato ,  Paul E. Saunders

IPC分类号： G01L009/00

CPC分类号： G01L11/025

摘要： A fiber grating pressure sensor includes an optical sensing element which includes an optical fiber having a Bragg grating impressed therein which is encased within and fused to at least a portion of a glass capillary tube and/or a large diameter waveguide grating having a core and a wide cladding. Light is incident on the grating and light is reflected from the grating at a reflection wavelength null1. The sensing element may be used by itself as a sensor or located within a housing. When external pressure P increases, the grating is compressed and the reflection wavelength null1 changes. The shape of the sensing element may have other geometries, e.g., a nulldogbonenull shape, so as to enhance the sensitivity of shift in null1 due to applied external pressure and may be fused to an outer shell.

摘要翻译： 光纤光栅压力传感器包括光学感测元件，其包括其中印有布拉格光栅的光纤，该光纤被封装在玻璃毛细管和/或大直径波导光栅的至少一部分内并且熔融到具有芯和 宽包层 光入射到光栅上，光以反射波长λ1从光栅反射。 感测元件可以自身用作传感器或位于壳体内。 当外部压力P增加时，光栅被压缩，反射波长λ1变化。 感测元件的形状可以具有其他几何形状，例如“狗骨”形状，以便增加由于施加的外部压力而导致的λ1偏移的灵敏度，并且可以将其熔合到外壳。

公开(公告)号：US20040123668A1

公开(公告)日：2004-07-01

申请号：US10334085

申请日：2002-12-30

申请人： PTI Technologies, Inc.

发明人： Bijan Mouhebaty ,  Fermin Alejandro Sandoval Diaz ,  Daniel K. Moscaritolo

IPC分类号： G01L009/00

CPC分类号： G01L19/14 ,  G01L9/0089 ,  G01L19/12

摘要： A differential pressure indicator has a housing with at least two ports in the housing. One port receives a first pressure, and the second port receives a second pressure. A pressure resistive device is placed between the first port and the second port. The pressure resistive device changes its position when the first pressure exceeds the second pressure by a predetermined amount. A magnet is coupled to the pressure resistive device. A digital displacement sensor senses the position of the magnet. The digital displacement sensor is in communication with an electronic indicator. The electronic indicator activates when the first pressure exceeds the second pressure by a predetermined amount.

摘要翻译： 差压指示器具有在壳体中具有至少两个端口的壳体。 一个端口接收第一压力，并且第二端口接收第二压力。 压阻装置放置在第一端口和第二端口之间。 当第一压力超过第二压力预定量时，耐压装置改变其位置。 磁体耦合到压阻电阻器件。 数字位移传感器检测磁体的位置。 数字位移传感器与电子指示器通信。 当第一压力超过第二压力预定量时，电子指示器启动。

公开(公告)号：US20040060362A1

公开(公告)日：2004-04-01

申请号：US10399813

申请日：2003-09-24

发明人： Charlotte Kjellmann ,  Johan Lidman ,  Karin Ljungstrom ,  Kenth Nilsson

IPC分类号： G01L009/00

CPC分类号： G01L9/08 ,  A61B5/0215 ,  A61B2090/064 ,  A61B2562/0247 ,  A61M2025/0002 ,  G01L9/06

摘要： The invention relates to a fluid pressure sensor for a lead (18) or catheter preferably intended to be placed in a living organism, such as the heart of a human being, said sensor comprising a piezoelectric element (4, 10, 11, 14) delivering an electric signal when subjected to a pressure variation, said piezoelectric element (4, 10, 11, 14) being designed to exhibit circumferential sensitivity and being disposed on at least parts of the outer surface of a rigid annular or tubular supporting structure (2). The rigidity of said sensor is such that the signal from the sensor relating to the pressure transferred to the sensor through an ongrowth of for instance tissue on the sensor would be at least 90% of the signal from the sensor without the ongrowth.

摘要翻译： 本发明涉及一种用于引线（18）或导管的流体压力传感器，其优选地旨在放置在诸如人的心脏的生物体中，所述传感器包括压电元件（4,10,11,14） 当经受压力变化时传递电信号，所述压电元件（4,10,11,14）设计成具有周向灵敏度并且设置在刚性环形或管状支撑结构（2）的外表面的至少一部分上 ）。 所述传感器的刚度使得来自传感器的与通过传感器上的组织的生长传递到传感器的压力相关的信号将是来自传感器的信号的至少90％，而没有增长。

公开(公告)号：US20040040381A1

公开(公告)日：2004-03-04

申请号：US10427335

申请日：2003-05-01

发明人： Timothy J. Bailey ,  Mark R. Fernald ,  Alan D. Kersey ,  Trevor W. MacDougall ,  Martin A. Putnam

IPC分类号： G01L009/00

CPC分类号： G01L1/246 ,  G01L9/0077 ,  G01L11/025

摘要： A fluid diffusion resistant tube-encased fiber grating pressure sensor includes an optical fiber 10 having a Bragg grating 12 impressed therein which is encased within a sensing element, such as a glass capillary shell 20. A fluid blocking coating 30 is disposed on the outside surface of the capillary shell to prevent the diffusion of fluids, such as water molecules from diffusing into the shell. The fluid diffusion resistant fiber optic sensor reduces errors caused by the diffusion of water into the shell when the sensor is exposed to harsh conditions.

摘要翻译： 耐流体扩散的管封装的光纤光栅压力传感器包括一个光纤10，其中布置有布拉格光栅12，其被封装在诸如玻璃毛细管壳20之类的传感元件内。流体阻挡涂层30设置在外表面 的毛细管壳，以防止流体的扩散，例如水分子扩散到壳体中。 当传感器暴露在恶劣的条件下时，防止流体扩散的光纤传感器减少了由水扩散到壳体中引起的误差。

公开(公告)号：US20040000195A1

公开(公告)日：2004-01-01

申请号：US10606893

申请日：2003-06-27

发明人： Kenichi Yanai ,  Hiroto Nakatani ,  Tomoyasu Watanabe

IPC分类号： G01L009/00

CPC分类号： G01L1/20 ,  A61B5/024 ,  A61B5/113 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/046 ,  G01L1/205

摘要： A pressure sensor includes a pair of base films, a pair of electrodes, a layer of pressure-sensitive resistor, a spacer, and a projection. The electrodes are located between the base films. The layer of pressure-sensitive resistor is located between the base films to be distant from one of the electrodes by a predetermined gap. The spacer is located outside the layer of pressure-sensitive resistor between the base films and used for forming the gap. The projection is located on an outer surface of one of the base films in order to decrease the lowest pressure that can be detected by the pressure sensor. The contact state between the layer of pressure-sensitive resistor and one of the electrodes varies to vary the resistance between the electrodes when a pressure acts on the projection.

公开(公告)号：US20030121332A1

公开(公告)日：2003-07-03

申请号：US10027412

申请日：2001-12-21

发明人： Santhi E. Mathew ,  Kerry S. Lahey ,  Leonid Mindlin ,  Jim M. Poulin ,  Claudia J. Quigley ,  Gardy F. St.Paul ,  Irving Weiner

IPC分类号： G01L009/00

CPC分类号： G01L9/0072 ,  G01L9/12 ,  G01L19/02

摘要： A pressure transducer has an output characterized by two or more slopes. A pressure transducer generates an first output signal that may be linearly proportional to the sensed pressure. The pressure transducer includes an electrical circuit that shapes the first output signal to produce a shaped output signal that according to a first function of the first output signal when the first output signal is less than the first value and according to a second function of the first output signal when the first output signal is greater than a second value. Preferably, the shaped output signal is a dual slope signal such that the shaped output signal has a first linear portion characterized by a first slope and a second linear portion characterized by a second slope. The two linear portions of the shaped output signal may intersect at a knee point which corresponds to a pressure between two preferred desired pressure ranges. Preferably, the knee point corresponds to a sensed pressure that is approximately 10 percent of the maximum pressure sensed by the device. The higher slope may correspond to lower measured pressures and the lower slope may correspond to higher measured pressures. Preferably, the higher slope is high enough that even in low output voltage ranges, the shaped output signal can be resolved by an analog-to-digital converter to a desired degree of precision. Preferably, the total range of the output voltage is the same as the total range of the first output voltage.

摘要翻译： 压力传感器具有由两个或更多个斜面表征的输出。 压力传感器产生可以与感测到的压力成线性比例的第一输出信号。 压力传感器包括电路，其对第一输出信号进行整形以产生成形输出信号，该输出信号根据第一输出信号的第一功能，当第一输出信号小于第一值时，并且根据第一输出信号的第二功能 当第一输出信号大于第二值时，输出信号。 优选地，成形输出信号是双斜率信号，使得成形输出信号具有由第一斜率表征的第一线性部分和由第二斜率表征的第二线性部分。 成形输出信号的两个线性部分可以在对应于两个优选的期望压力范围之间的压力的拐点相交。 优选地，拐点对应于感测到的压力，其大约是由装置感测到的最大压力的10％。 较高的斜率可能对应于较低的测量压力，下斜率可对应于更高的测量压力。 优选地，较高的斜率足够高，即使在低输出电压范围内，成形的输出信号也可以通过模拟 - 数字转换器解析成期望的精度。 优选地，输出电压的总范围与第一输出电压的总范围相同。

公开(公告)号：US20030101824A1

公开(公告)日：2003-06-05

申请号：US09998292

申请日：2001-11-30

发明人： Chris P. Grudzien

IPC分类号： G01L009/00

CPC分类号： G01L19/083 ,  G01L19/086

摘要： An output device for a pressure transducer incorporates a cable connector and an electronic display. Both may be selectably positioned relative to the pressure transducer. In one aspect of the invention, the electronic display is rotatable around an axis perpendicular to the plane of the display. In another aspect of the invention, the cable connector is positioned by adjusting the connection of the output device relative to the pressure transducer. In some embodiments, the adjustability of the output device is provided through a bayonet connection between the output device and the pressure transducer. The adjustments to position of the display and of the cable connector may be performed without the use of tools. An output device constructed in accordance with the present invention may be field-configured in a multitude of ways, largely eliminating the need for the preselection of particular output devices for particular installations.

摘要翻译： 用于压力传感器的输出装置包括电缆连接器和电子显示器。 两者可以相对于压力传感器可选地定位。 在本发明的一个方面中，电子显示器可绕垂直于显示器平面的轴线旋转。 在本发明的另一方面，通过调节输出装置相对于压力传感器的连接来定位电缆连接器。 在一些实施例中，通过输出装置和压力传感器之间的卡口连接来提供输出装置的可调性。 可以在不使用工具的情况下执行对显示器和电缆连接器的位置的调整。 根据本发明构造的输出设备可以以多种方式进行现场配置，从而大大消除了对特定设备的特定输出设备的预选择的需要。