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21.发明申请GAS PULSE GENERATOR FOR BASELINE DRIFT CORRECTION AND RELATED SYSTEM AND METHOD 有权用于基线修正的气体脉冲发生器及相关系统及方法公开(公告)号：US20100101301A1
公开(公告)日：2010-04-29
申请号：US12260007
申请日：2008-10-28
申请人： Adam Dewey McBrady , J. David Zook , Alex Gu , Michael L. Rhodes
发明人： Adam Dewey McBrady , J. David Zook , Alex Gu , Michael L. Rhodes
IPC分类号： G01N30/00
CPC分类号： G01N33/0011 , G01N2030/122 , G01N2030/623 , Y10T436/25 , Y10T436/25375 , Y10T436/255
摘要： A method includes acquiring a chemical sample and modulating the chemical sample at a frequency greater than a drift frequency of a sensor. The method also includes determining at least one of a presence and a concentration of the analyte within the modulated chemical sample using the sensor. Modulating the chemical sample could include alternately absorbing at least some of the analyte into a sorbent material and releasing at least some of the analyte from the sorbent material. Modulating the chemical sample could also include heating the sorbent material, absorbing part of the analyte into the sorbent material, and passing a remaining portion of the analyte into the sensor. Modulating the chemical sample could further include stopping the heating of the sorbent material, releasing the part of the analyte from the sorbent material, and passing the sample with the released part of the analyte into the sensor.
摘要翻译： 一种方法包括获取化学样品并以大于传感器的漂移频率的频率调制化学样品。 该方法还包括使用传感器确定调制的化学样品中的分析物的存在和浓度中的至少一种。 调制化学样品可以包括交替地将至少一些分析物吸收到吸附材料中并从吸附剂材料中释放至少一些分析物。 调制化学样品还可以包括加热吸附剂材料，将分析物的一部分吸收到吸附剂材料中，并将分析物的剩余部分传递到传感器中。 调制化学样品可进一步包括停止吸附剂材料的加热，将分析物的一部分从吸附剂材料中释放出来，并将样品与分析物的释放部分一起传递到传感器中。
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公开(公告)号：US07322243B2
公开(公告)日：2008-01-29
申请号：US11156012
申请日：2005-06-16
申请人： James Z T Liu , Michael L. Rhodes , Aziz Rahman
发明人： James Z T Liu , Michael L. Rhodes , Aziz Rahman
CPC分类号： G01N17/02 , G01N29/022 , G01N33/2888 , G01N2291/0224 , G01N2291/0226 , G01N2291/0256 , G01N2291/0422 , G01N2291/0423 , G01N2291/0426 , G01N2291/0427
摘要： An acoustic wave sensor system for monitoring the etch rate or etch ability of a selective material has an acoustic wave sensing device having a piezoelectric substrate and at least one electrode coupled to the substrate for generating a propagating acoustic wave and for detecting changes in frequency or other propagation characteristics of the acoustic wave. A selective material is disposed on the substrate. Changes in propagation characteristics of the wave caused by etching of the selective material by an etchant can be analyzed to evaluate the etching rate or etch ability of the selective material. The sensing system can have a wireless sensing device which device is mountable in an oil filter system for monitoring the corrosion of the engine. The sensing device can be configured as BAW, SH-SAW, SH-APM, FPM devices or other acoustic wave devices.
摘要翻译： 用于监测选择性材料的蚀刻速率或蚀刻能力的声波传感器系统具有声波感测装置，其具有压电衬底和耦合到衬底的至少一个电极，用于产生传播声波并用于检测频率或其它变化 声波的传播特性。 选择性材料设置在基板上。 可以分析通过蚀刻剂蚀刻选择性材料引起的波的传播特性的变化，以评估选择性材料的蚀刻速率或蚀刻能力。 感测系统可以具有无线感测装置，该装置可安装在用于监测发动机腐蚀的机油滤清器系统中。 感测装置可以配置为BAW，SH-SAW，SH-APM，FPM装置或其他声波装置。
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公开(公告)号：US07447587B2
公开(公告)日：2008-11-04
申请号：US11612211
申请日：2006-12-18
CPC分类号： F02D41/005 , F01N2560/026 , F01N2560/05 , F01N2560/06 , F02B37/00 , F02D41/0087 , F02D41/1402 , F02D41/146 , F02D41/1461 , F02D41/1466 , F02D2041/1433 , F02M26/05 , F02M26/21 , F02M26/23 , Y02T10/47
摘要： Method and system for controlling cylinder to cylinder variations of undesirable emissions in exhaust gas of engines with exhaust gas recirculation. An engine model is used to predict the intake composition of the next cylinder firing based on the composition of the exhaust, as a function of time and applicable engine conditions. At least one engine parameter is adjusted to compensate for the predicted intake composition in order to minimize cylinder to cylinder variations.
摘要翻译： 用于控制具有废气再循环的发动机废气中不期望排放的气缸与气缸的变化的方法和系统。 发动机模型用于根据排气的组成，根据时间和适用的发动机条件预测下一个气缸点火的进气组成。 调整至少一个发动机参数以补偿预测的摄入组成，以便使气缸与气缸的变化最小化。
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公开(公告)号：US07293450B2
公开(公告)日：2007-11-13
申请号：US11244594
申请日：2005-10-05
申请人： James Z T Liu , Aziz Rahman , Michael L. Rhodes
发明人： James Z T Liu , Aziz Rahman , Michael L. Rhodes
IPC分类号： G01N11/00
CPC分类号： G01N29/022 , G01N29/036 , G01N29/2462 , G01N33/2888 , G01N2291/0226 , G01N2291/0255 , G01N2291/0256 , G01N2291/0258 , G01N2291/02818 , G01N2291/0422 , G01N2291/0423 , G01N2291/0427 , G01N2291/101
摘要： An oil quality sensor system comprise an acoustic wave viscosity and an etch rate sensor. The etch rate sensor system includes a piezoelectric substrate and one or more sensing layers configured upon the piezoelectric substrate. A layer of gold is generally configured above the sensing layer(s), such that the gold layer provides protection to the sensing layer(s), thereby extending the operating life of the resulting etch rate sensor system. The sensing layer(s) generally comprises one or more reactive electrodes. The etch rate sensor system can be adapted for use in a permanent oil quality sensor application.
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25.发明授权公开(公告)号：US06509732B1
公开(公告)日：2003-01-21
申请号：US09561671
申请日：2000-05-01
IPC分类号： G01R33025
摘要： Systems and methods are discussed that detect the position of an actuator. One aspect of the present invention includes a system to detect a position of an actuator. The system includes a magnetic source coupled to the actuator radiating a field, at least two sensors to generate a response based on angles of the field, and an analyzer receptive to the response to produce an enhanced position of the magnetic source. Such analysis occurs in the presence of undesired effects arising from misalignment of the at least two sensors. Another aspect of the present invention includes a method for detecting a position of an actuator. The method includes interpolating a response of at least two sensors to form a quantity. The quantity is indicative of a position of a magnetic source coupled to the actuator. The method further includes adjusting the quantity by selecting one of two compensation techniques. One compensation technique is based on maximum slopes of the response curve. Another compensation technique is based on minimum separation of a cubic fit of the response curve.
摘要翻译： 讨论了检测致动器位置的系统和方法。 本发明的一个方面包括一种用于检测致动器的位置的系统。 该系统包括耦合到致动器的磁源，辐射场，至少两个传感器以基于场的角度产生响应，以及接收响应的分析器，以产生磁源的增强位置。 这种分析发生在由至少两个传感器的未对准引起的不期望的影响的情况下。 本发明的另一方面包括一种用于检测致动器的位置的方法。 该方法包括内插至少两个传感器的响应以形成数量。 该量表示耦合到致动器的磁源的位置。 该方法还包括通过选择两种补偿技术之一来调整数量。 一种补偿技术是基于响应曲线的最大斜率。 另一种补偿技术是基于响应曲线的三次拟合的最小分离。
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26.发明授权
公开(公告)号：US6097183A
公开(公告)日：2000-08-01
申请号：US59798
申请日：1998-04-14
申请人： Jay R. Goetz , Michael L. Rhodes
发明人： Jay R. Goetz , Michael L. Rhodes
IPC分类号： G01B7/00 , B29B7/00 , G01D5/14 , G01D5/16 , G01R33/025
CPC分类号： G01D5/145
摘要： A position determining apparatus including a magnet that is attached to a movable member which moves along a predefined path of finite length. An array of magnetic field transducers are located adjacent to the predefined path. The transducers provide a bipolar output signal as the magnet approaches, passes and moves away from each transducer. A correction mechanism is provided to correct for residual error caused by the non-linearity of the transducers. The correction mechanism preferably approximates the residual error with a predetermined function, and applies correction factors that correspond to the predetermined function to offset the residual error. By correcting for the non-linearity of the transducers, the length of the magnet may be reduced and/or the spacing of the transducers may be reduced.
摘要翻译： 一种位置确定装置，包括附接到沿着有限长度的预定路径移动的可动构件的磁体。 一组磁场换能器位于预定路径附近。 当磁体接近，通过并远离每个换能器时，换能器提供双极性输出信号。 提供校正机构来校正由换能器的非线性引起的残余误差。 校正机构优选地以预定的功能近似残差，并且应用与预定函数相对应的校正因子以抵消残差。 通过校正换能器的非线性，可以减小磁体的长度和/或可以减小换能器的间隔。
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公开(公告)号：US4939646A
公开(公告)日：1990-07-03
申请号：US192586
申请日：1988-05-09
CPC分类号： G06F17/175 , G06T11/203 , Y10S378/901
摘要： A method for representing digitized scanned image data obtained by a non-intrusive cross-sectional image generating device. By representing an original set of user-input data points in polar coordinates, such that all of the points lie in the upper two quadrants of the coordinate system, a cubic spline algorithm can be applied once to generate a series of polynomial functions that describe a curve connecting all of the input data points. The method also uses the calculated cubic spline coefficients for the initial curve to determine intermediate data points at each of which a uniform length perpendicular is constructed. By traversing each perpendicular a desired length, new data points equidistant from the initial curve are calculated, resulting in additional curves equidistant from the initial curve. Any of the curve representations generated can then be used to select pixels from the scanned image data to display a reformatted view of the original data.
摘要翻译： 一种用于表示由非侵入式横截面图像生成装置获得的数字化扫描图像数据的方法。 通过在极坐标中表示原始的一组用户输入数据点，使得所有点位于坐标系的上两个象限中，可以应用一次三次样条算法来生成一系列多项式函数，其描述一个 曲线连接所有输入数据点。 该方法还使用计算的三次样条系数作为初始曲线，以确定在其中构造均匀长度垂直的每个中间数据点。 通过将每个垂直线穿过所需长度，计算与初始曲线等距的新数据点，导致与初始曲线等距的附加曲线。 然后可以使用生成的任何曲线表示来从扫描图像数据中选择像素以显示原始数据的重新格式化视图。
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公开(公告)号：US09146206B2
公开(公告)日：2015-09-29
申请号：US13365388
申请日：2012-02-03
申请人： Michael L. Rhodes , Clayton S. Morton , James A. Chambers , Graeme L. Jarvis , Larry L. Hendrickson
发明人： Michael L. Rhodes , Clayton S. Morton , James A. Chambers , Graeme L. Jarvis , Larry L. Hendrickson
CPC分类号： G01N27/223 , G01N33/246
摘要： A capacitance-based moisture sensor may include a sleeve having an internal cavity, a container filled with soil or other material inserted into the internal cavity, and a pair of ring-shaped conductive bands around the exterior of the sleeve forming a capacitor and providing a frequency output. The rings positioned around a perimeter of the sleeve may be connected to a fixed inductor to form an oscillator with a variable frequency output. The sensor may be calibrated from the frequency output for each of a plurality of substances, measuring the volumetric water content for saturation of the material, and determining at least one fitting constant in an equation wherein volumetric water content is a function of the frequency output and a plurality of fitting constants.
摘要翻译： 基于电容的湿度传感器可以包括具有内部空腔的套筒，填充有插入到内部空腔中的土壤或其他材料的容器以及围绕套筒外部的一对环形导电带，形成电容器并提供 频率输出。 围绕套筒周边定位的环可以连接到固定电感器以形成具有可变频率输出的振荡器。 传感器可以从多个物质中的每一个的频率输出校准，测量材料的饱和度的体积含水量，以及在等式中确定至少一个拟合常数，其中体积含水量是频率输出的函数， 多个拟合常数。
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公开(公告)号：US20120274315A1
公开(公告)日：2012-11-01
申请号：US13096100
申请日：2011-04-28
CPC分类号： G01D5/14
摘要： An assembly is provided comprising a member having a graduated edge that varies in radius with respect to an axis, and a sensor adjacent to the graduated edge, the member and the sensor are capable of rotating relative to one another. The sensor provides a signal level proportional to a distance between the sensor and the graduated edge, and the distance, between the sensor and the graduated edge, is indicative of a rotation angle of the member relative to the sensor.
摘要翻译： 提供了一种组件，其包括具有相对于轴线半径变化的刻度边缘的构件，以及邻近刻度边缘的传感器，该构件和传感器能够相对于彼此旋转。 传感器提供与传感器和刻度边缘之间的距离成比例的信号电平，并且传感器和刻度边缘之间的距离表示构件相对于传感器的旋转角度。
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公开(公告)号：US07145326B2
公开(公告)日：2006-12-05
申请号：US10749268
申请日：2003-12-31
IPC分类号： G01R33/09
CPC分类号： G01D5/251
摘要： A method and system to detect a position of a member movable along a defined path is described. The system includes a magnetic source, an array of sensors, and an analyzer. The magnetic source radiates a magnetic field and is coupled to a movable member. The array of sensors is fixed relative to the movable member. Each sensor generates an output response value based on an angle of the magnetic field passing through each sensor. The array of sensors produces a plurality of output response values for a first position of the movable member. The analyzer receives the plurality of output response values and calculates a composite output response value to determine the first position of the movable member.
摘要翻译： 描述了一种检测沿着限定路径移动的构件的位置的方法和系统。 该系统包括磁源，传感器阵列和分析器。 磁源辐射磁场并且耦合到可动构件。 传感器阵列相对于可动件固定。 每个传感器基于通过每个传感器的磁场的角度产生输出响应值。 传感器阵列为可移动部件的第一位置产生多个输出响应值。 分析仪接收多个输出响应值并计算复合输出响应值以确定可移动部件的第一位置。
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