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热词
    • 93. 发明授权
    • Gas sensor with phased heaters for increased sensitivity
    • 带有加热器的气体传感器,增加灵敏度
    • US06393894B1
    • 2002-05-28
    • US09361886
    • 1999-07-27
    • Ulrich BonneJay GoetzPurnendu K. Dasgupta
    • Ulrich BonneJay GoetzPurnendu K. Dasgupta
    • G01N3000
    • G01N30/12G01N1/2214G01N1/40G01N1/405G01N2030/123G01N2030/3076G01N2030/3015
    • A concentrator and sensor assembly are disclosed that use phased heaters to multiply the concentration levels that can be eluted, relative to operation with a single interactive element having a sorbent material to increase the concentration of desired gas constituents at a detector. This is accomplished here by providing two or more interactive concentrator elements that are selectively heated in a time phased sequence so that each of the interactive elements becomes heated and desorbs gas constituents into the sample fluid stream at substantially the same time that an upstream concentration pulse, produced by heating one or more upstream interactive elements, reaches the interactive element. This produces a multiplication effect that significantly increases the concentration of the gas constituents at the detector, thereby increasing the effective sensitivity of the detector.
    • 公开了一种浓缩器和传感器组件,其使用相位加热器相对于具有吸附剂材料的单个相互作用元件的操作相比可以洗脱的浓度水平增加以增加检测器处的​​期望气体组分的浓度。 这通过提供两个或更多个相互作用的集中器元件来实现,所述两个或多个相互作用的集中器元件在时间相序中被选择性地加热,使得每个相互作用元件被加热并且将气体成分解吸到样品流体流中, 通过加热一个或多个上游交互元件产生的到达交互元件。 这产生了显着增加检测器处气体成分浓度的乘法效应,从而提高了检测器的有效灵敏度。
    • 96. 发明授权
    • Microsensor housing
    • 微传感器外壳
    • US06361206B1
    • 2002-03-26
    • US09239125
    • 1999-01-28
    • Ulrich Bonne
    • Ulrich Bonne
    • G01K1302
    • G01N33/0014G01F1/6842G01F1/6845G01N1/2247G01N25/18G01N25/488G01N2001/2285
    • A microsensor housing having a structure with at least one inlet at one end and a thermal property sensor at the other end. Situated between the inlet and the sensor is a convection shield. Sampled fluid is taken in the inlet from a channel carrying the fluid to be sampled. The convection flow lines of the fluid are barred by the convection shield. The fluid is diffused into a cavity between the shield and sensor. The sensor detects a thermal property of the diffused fluid. One preferred shield has holes about its perimeter with a solid center part of the shield covering at a distance the sensor. The channel carrying the fluid may have screens to reduce turbulence noise and to aid in fluid transport to and from the sensor housing.
    • 具有在一端具有至少一个入口的结构的微传感器外壳和另一端的热性传感器。 位于入口和传感器之间的是对流屏蔽。 采样流体从携带要采样的流体的通道进入入口。 流体的对流流线被对流屏蔽体所禁止。 流体扩散到屏蔽和传感器之间的空腔中。 传感器检测扩散流体的热性质。 一个优选的屏蔽件围绕其周边具有孔,屏蔽件的实心中心部分在传感器的一定距离处覆盖。 承载流体的通道可以具有筛网以减少湍流噪声并且有助于流体传输到传感器壳体和从传感器壳体传输。
    • 100. 发明授权
    • Differential pressure sensor with stress reducing pressure balancing
means
    • 差压传感器带减压压力平衡装置
    • US5684253A
    • 1997-11-04
    • US780751
    • 1997-01-08
    • Ulrich BonneD. Joseph Maurer
    • Ulrich BonneD. Joseph Maurer
    • G01L9/00G01L7/00
    • G01L19/0038G01L19/003G01L19/0084G01L19/142
    • The present invention relates generally to a pressure sensor and, more specifically, to a pressure equalization structure that balances the forces on the pressure sensitive component in order to reduce the stress that could otherwise be imposed on its piezoresistors. The pressure sensor provides a housing in which a cavity is formed. Within the cavity, a pressure sensitive component is disposed between a first seal and a second seal in order to expose a first surface of the pressure sensitive component to a first conduit and a second surface of the pressure sensitive component to a second conduit. The pressure surrounding the pressure sensitive structure is generally equalized to one of the first and second conduits by providing a bypass conduit connected therebetween.
    • 本发明一般涉及一种压力传感器,更具体地说,涉及一种平衡压力敏感部件上的力的压力均衡结构,以便减少另外可能施加在其压敏电阻器上的应力。 压力传感器提供其中形成空腔的壳体。 在空腔内,压力敏感部件设置在第一密封件和第二密封件之间,以将压敏部件的第一表面暴露于第一导管和压敏部件的第二表面到第二导管。 围绕压敏结构的压力通常通过连接在它们之间的旁路管道而与第一和第二管道中的一个相等。