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    • 1. 发明授权
    • Pressure sensor
    • 压力传感器
    • US06829942B2
    • 2004-12-14
    • US10606893
    • 2003-06-27
    • Kenichi YanaiHiroto NakataniTomoyasu Watanabe
    • Kenichi YanaiHiroto NakataniTomoyasu Watanabe
    • G01L900
    • G01L1/20A61B5/024A61B5/113A61B5/6892A61B2562/0247A61B2562/046G01L1/205
    • 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.
    • 压力传感器包括一对基膜,一对电极,一层压敏电阻器,间隔件和突起。 电极位于基膜之间。 压敏电阻层位于基膜之间,以远离电极之一预定的间隙。 间隔物位于基膜之间的压敏电阻层之外,用于形成间隙。 突起位于一个基膜的外表面上,以便降低由压力传感器检测到的最低压力。 当压力作用在突起上时,压敏电阻层与其中一个电极之间的接触状态变化,以改变电极之间的电阻。
    • 2. 发明授权
    • Temperature compensated fiber-optic pressure sensor
    • 温度补偿光纤压力传感器
    • US06823738B1
    • 2004-11-30
    • US10686500
    • 2003-10-15
    • Marek T. WlodarczykThomas J. Poorman
    • Marek T. WlodarczykThomas J. Poorman
    • G01L900
    • G01L19/04
    • Compensation techniques for high temperature fiber-optic pressure sensors are aimed at correcting for the sensor sensitivity and offset dependence on temperature. By using materials of different thermal expansion coefficients for the sensor diaphragm, housing, ferrule and fiber-bonding compound and by optimizing the length of such parts, the relative distance of the fiber tip with respect to the sensing diaphragm changes in a manner that reduces sensor sensitivity and/or offset dependence on temperature. In the first embodiment, the distance change results from controlled fiber movement within the ferrule and is used to reduce the temperature sensitivity of dynamic sensors. In the second embodiment, an optimum selection of the diaphragm, housing, ferrule and bonding compound materials yields a stable fiber position within the ferrule but, instead, a well defined ferrule movement with respect to the diaphragm in response to temperature changes. The latter technique is used to reduce the offset error of static sensors or the sensitivity error of dynamic sensors.
    • 高温光纤压力传感器的补偿技术旨在校正传感器灵敏度和偏移对温度的依赖性。 通过使用不同热膨胀系数的材料用于传感器隔膜,外壳,套圈和纤维粘合剂,并且通过优化这些部件的长度,纤维尖端相对于感测膜片的相对距离以减少传感器 灵敏度和/或偏移依赖于温度。 在第一实施例中,距离变化是由套管内受控纤维运动引起的,并用于降低动态传感器的温度敏感度。 在第二实施例中,隔膜,壳体,套圈和接合复合材料的最佳选择在套圈内产生稳定的纤维位置,而是响应于温度变化而相对于隔膜的良好限定的套圈移动。 后一种技术用于减少静态传感器的偏移误差或动态传感器的灵敏度误差。
    • 4. 发明授权
    • Relative pressure measuring instrument
    • 相对压力测量仪
    • US06752021B2
    • 2004-06-22
    • US10195148
    • 2002-07-15
    • Dietfried BurczykThomas VeltenTanja Stöcklin
    • Dietfried BurczykThomas VeltenTanja Stöcklin
    • G01L900
    • G01L19/0645G01L19/0038
    • A relative pressure measuring instrument has a reference pressure feed that offers a high measure of safety and is easy to produce. Included is a relative pressure measuring cell having a pressure sensitive element, on whose process-facing side there is present during operation a pressure (p) to be measured, on whose process-averted side there is present during operation a reference pressure (pR) to which the pressure (p) to be measured is to be referred, a support on which the relative pressure measuring cell is arranged and which is enclosed in a housing, a process connection, that is connected to a process-facing end of the housing, a measuring instrument housing that is arranged at a process-averted end of the housing, and a reference pressure feed through which during operation the reference pressure (pR) is led to the process-averted side of the pressure sensitive element, and which leads completely out of the relative pressure measuring instrument laterally through the support and a single bore through the housing.
    • 相对压力测量仪器具有参考压力进给,提供高度的安全性,易于生产。 包括具有压力敏感元件的相对压力测量单元,在操作期间在其处理面侧存在待测量的压力(p),在工作过程中存在参考压力(pR) 要对其进行测量的压力(p),安装有相对压力测量单元并被封装在壳体中的支撑件,连接到壳体的面向过程的端部的过程连接 ,布置在壳体的过程避免端的测量仪器壳体和参考压力进给器,在参考压力进给期间,参考压力(pR)被引导到压敏元件的过程避免侧,并且其引导 完全从相对压力测量仪器横向通过支撑件和单个孔穿过外壳。
    • 7. 发明授权
    • Portable altimeter and altitude computing method
    • 便携式高度计和高度计算方法
    • US06678629B2
    • 2004-01-13
    • US09765552
    • 2001-01-19
    • Tomoharu Tsuji
    • Tomoharu Tsuji
    • G01L900
    • G01C5/06
    • A portable altimeter of the present invention is provided with a movement determining unit for determining whether or not the altimeter is at a standstill or moving by comparing an amount of change in altitude with a prescribed standstill threshold value and movement threshold value. When the standstill mode is set, the moving mode is then set only when the amount of change equals or exceeds the movement threshold value, and when the moving mode is set, the standstill mode is then set only when the amount of change falls below the standstill threshold value.
    • 本发明的便携式高度计具有移动确定单元,用于通过将高度的变化量与规定的静止阈值和移动阈值进行比较来确定高度计是否处于停止状态或移动。 当设置了停止模式时,仅当变化量等于或超过移动阈值时才设置移动模式,并且当设置移动模式时,仅当变化量低于 停顿阈值。
    • 10. 发明授权
    • Differential pressure transducers
    • 差压传感器
    • US06539807B1
    • 2003-04-01
    • US09444600
    • 1999-11-22
    • Dankwart WohlrabFriedrich Schwamm
    • Dankwart WohlrabFriedrich Schwamm
    • G01L900
    • F02C9/263
    • The invention pertains to differential pressure transducers for gas turbine motors, for measuring variable pressure differences within a medium or between different media. The differential pressure transducer is constructed as a linear displacement sensor according to the linear variable displacement transducer (LVDT) principle, and has a ferromagnetic core that can be moved in a translatory manner, a spring element for the set position of the core given nominal differential pressure, a primary coil and two secondary coils arranged in succession axially over the length of the stroke range of the core, and a tubular housing having a delivery connection on both sides of the stroke area of the core.
    • 本发明涉及用于燃气涡轮发动机的差压传感器,用于测量介质内或不同介质之间的可变压力差。 差压传感器根据线性可变位移传感器(LVDT)原理构造为线性位移传感器,并具有能够以平移方式移动的铁磁芯,用于芯的设定位置的弹簧元件给定额定微分 压力,初级线圈和两个次级线圈,其在芯的行程范围的长度上沿轴向排列,以及管状壳体,其在芯的冲程区域的两侧具有输送连接。