公开(公告)号：US20070074563A1

公开(公告)日：2007-04-05

申请号：US11244945

申请日：2005-10-05

申请人： James Liu ,  Aziz Rahman ,  Michael Rhodes

发明人： James Liu ,  Aziz Rahman ,  Michael Rhodes

IPC分类号： G01N11/10

CPC分类号： G01N29/022 ,  G01N27/06 ,  G01N29/036 ,  G01N29/2462 ,  G01N33/2876 ,  G01N2291/0226 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0258 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427 ,  G01N2291/101

摘要： A viscosity and corrosivity sensor apparatus includes a substrate upon which one or more electrodes are configured. The electrode(s) are exposed to a liquid, such as automotive oil. An oscillator can be connected to the electrode, wherein the oscillator assists in providing data indicative of the corrosivity and data indicative of the viscosity of the liquid in contact with the electrode(s). A viscosity and corrosivity sensor is therefore provided in the same package.

公开(公告)号：US20060283249A1

公开(公告)日：2006-12-21

申请号：US11156012

申请日：2005-06-16

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01H13/00

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 etchability 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 etchability 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性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检测频率或其他传播的变化 声波的特点。 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，以评价选择性材料的蚀刻速率或蚀刻性。 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。

公开(公告)号：US20060260404A1

公开(公告)日：2006-11-23

申请号：US11132870

申请日：2005-05-19

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N29/02

CPC分类号： G01N29/022 ,  G01N29/024 ,  G01N29/032 ,  G01N29/036 ,  G01N29/222 ,  G01N33/30 ,  G01N2291/0226 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0426 ,  G01N2291/0427

摘要： A lubricity sensor includes a flexural plate wave device and a face shear mode bulk acoustic wave device, which is associated with and located proximate to the flexural plate wave device. The face shear mode bulk acoustic wave device and the flexural plate wave device form a lubricity sensor wherein acoustic wave data produced by the flexural plate device together with the face shear mode bulk acoustic wave device when the lubricity sensor is exposed to a liquid relates directly to a lubricity of the liquid thereby providing lubricity measurement data associated with the liquid. The acoustic wave data can comprises the oscillation gain compensation, the frequency, amplitude and/or phase velocity associated with the flexural plate device and the shear mode bulk acoustic wave device such that the oscillation gain compensation, the frequency, amplitude and/or phase velocity provide an indication of the lubricity of the liquid.

摘要翻译： 润滑性传感器包括弯曲板波装置和面剪切模式体声波装置，其与弯曲板波装置相关联并位于其附近。 面剪切模式体声波装置和挠曲板波装置形成润滑传感器，其中当润滑性传感器暴露于液体时，由弯曲板装置与面剪切模式体声波装置一起产生的声波数据直接关系到 液体的润滑性，从而提供与液体相关联的润滑性测量数据。 声波数据可以包括与弯曲板装置和剪切模式体声波装置相关联的振荡增益补偿，频率，幅度和/或相位速度，使得振荡增益补偿，频率，振幅和/或相速度 提供液体的润滑性的指示。

公开(公告)号：US20060283252A1

公开(公告)日：2006-12-21

申请号：US11157103

申请日：2005-06-17

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N29/00

CPC分类号： G01S13/755 ,  G01N29/022 ,  G01N29/2462 ,  G01N29/30 ,  G01N29/4436 ,  G01N2291/0226 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427 ,  G01N2291/045

摘要： A passive acoustic wave sensor system for monitoring the quality of liquids, such as engine oil, is disclosed. The sensor system has an acoustic wave sensing device for generating a propagating acoustic wave and for detecting changes in frequency or other propagation characteristics of the acoustic wave caused by acousto-electric interactions between the liquid and the wave at an interactive region of the device. An antenna is integrated in the sensing device for receiving an interrogation signal and for transmitting the output response of the sensing device. The output response can be analyzed to determine the conductivity, pH or other electrical characteristics of the liquid. One or more reference devices may be utilized to compensate for mechanical effects of the liquid and temperature or other environmental effects. The sensing and reference devices can be configured as SH-SAW, SH-APM, FPM devices or other acoustic wave devices.

摘要翻译： 公开了一种用于监测诸如机油的液体质量的被动声波传感器系统。 传感器系统具有声波传感装置，用于产生传播声波，并且用于检测在装置的交互区域处由液体和波之间的声电相互作用引起的声波的频率变化或其他传播特性。 天线集成在感测装置中，用于接收询问信号并传输感测装置的输出响应。 可以分析输出响应以确定液体的电导率，pH或其他电气特性。 可以使用一个或多个参考装置来补偿液体的机械效应和温度或其他环境影响。 感测和参考设备可以配置为SH-SAW，SH-APM，FPM设备或其他声波设备。

公开(公告)号：US20060254356A1

公开(公告)日：2006-11-16

申请号：US11127635

申请日：2005-05-11

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N29/02

CPC分类号： G01N29/2481 ,  G01N29/022 ,  G01N29/2462 ,  G01N2291/011 ,  G01N2291/014 ,  G01N2291/0256 ,  G01N2291/02863 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427 ,  G01N2291/105 ,  G01S13/755

摘要： A method and system for measuring liquid conductivity utilizing an acoustic wave sensor. In general, an acoustic wave device can be provided with one or more interdigital transducers, including at least a first interdigital transducer and at least a second interdigital transducer having a cavity formed therebetween, wherein liquid comes into contact with the cavity. For example, a liquid, such as oil, may flow through the cavity. A measurement of the resistance and/or frequency of the acoustic wave device next to the cavity can be performed in order to obtain data indicative of the conductivity of the liquid.

摘要翻译： 一种使用声波传感器测量液体传导率的方法和系统。 通常，声波装置可以设置有一个或多个叉指换能器，包括至少第一叉指换能器和至少第二叉指式换能器，其间形成有腔，其中液体与空腔接触。 例如，诸如油的液体可以流过空腔。 为了获得表示液体的导电性的数据，可以进行与腔体相邻的声波器件的电阻和/或频率的测量。

公开(公告)号：US20060230834A1

公开(公告)日：2006-10-19

申请号：US11107102

申请日：2005-04-14

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N29/00

CPC分类号： G01L9/0025 ,  G01L1/165 ,  G01N29/022 ,  G01N2291/0256 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

摘要： A multiple-mode acoustic wave sensor apparatus includes an acoustic wave device comprising a piezoelectric substrate and at least one electrode on the substrate. When such sensor is used in a wireless configuration, a plurality of antennas can be configured on the substrate in association with the acoustic wave device, wherein each antenna among the plurality of antennas is responsive to varying interrogation signals transmitted wirelessly to the plurality of antennas in order to excite multiple frequency modes via at least one interdigital transducer on the substrate and thereby passively detect multiple and varying parameters of a sensed material utilizing the acoustic wave device.

摘要翻译： 多模式声波传感器装置包括声波装置，该声波装置包括压电基片和基片上的至少一个电极。 当这种传感器用于无线配置时，可以在声波装置的基板上配置多个天线，其中多个天线中的每个天线响应于以多个天线无线方式发射的多个询问信号 通过基板上的至少一个叉指式换能器来激发多个频率模式，从而利用声波装置被动地检测感测材料的多个和变化的参数。

公开(公告)号：US20060230833A1

公开(公告)日：2006-10-19

申请号：US11107099

申请日：2005-04-14

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N29/00

CPC分类号： G01N29/4481 ,  B01D35/143 ,  G01N29/022 ,  G01N33/26 ,  G01N33/28 ,  G01N2291/0226 ,  G01N2291/0256 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/0426 ,  G01N2291/0427

摘要： A wireless oil filter sensing system includes an oil filter and a sensing mechanism that is connectable to the oil filter. The sensing mechanism includes one or more acoustic wave sensing elements and at least one antenna that communicate with the acoustic wave sensing element(s). An external interrogation system could excite the acoustic wave sensing element(s) wireless and passively. When the acoustic wave sensing elements are in contact with oil contained in the oil filter, the acoustic wave sensing elements detect acoustic waves associated with the oil in response to an excitation of the acoustic wave sensing elements, thereby generating data indicative of the quality of the oil for wireless transmission through the antenna(s).

摘要翻译： 无油油过滤器感测系统包括油过滤器和可连接到油过滤器的感测机构。 感测机构包括一个或多个声波感测元件和与声波感测元件通信的至少一个天线。 外部询问系统可以无线和被动地激发声波感测元件。 当声波感测元件与油滤清器中包含的油接触时，声波感测元件响应于声波感测元件的激发而检测与油相关联的声波，从而产生指示油感测元件的质量的数据 用于通过天线进行无线传输的油。

公开(公告)号：US20070137287A1

公开(公告)日：2007-06-21

申请号：US11305923

申请日：2005-12-16

申请人： James Liu ,  Aziz Rahman ,  Michael Rhodes

发明人： James Liu ,  Aziz Rahman ,  Michael Rhodes

IPC分类号： G01N29/00 ,  G01N37/00

CPC分类号： G01N33/2858 ,  G01N29/022 ,  G01N29/036 ,  G01N33/2888 ,  G01N2291/0224 ,  G01N2291/0226 ,  G01N2291/02416 ,  G01N2291/0258 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0427

摘要： An acoustic wave particulate sensor system is disclosed, which includes a piezoelectric substrate; and one or more acoustic wave sensing elements formed upon said piezoelectric substrate. A housing can be provided for maintaining said piezoelectric substrate and the acoustic wave sensing elements, wherein the acoustic wave sensing elements, when exposed to a substance containing particulates, such as, for example, engine oil, responds to a phase change, frequency change, and/or noise level change associated with said particulates in order to identify a noise signature of said particulates and therefore identify differences among said particulates to detect data associated with said particulates.

摘要翻译： 公开了一种声波微粒传感器系统，其包括压电基片; 以及形成在所述压电基片上的一个或多个声波感测元件。 可以提供用于维持所述压电基板和声波感测元件的壳体，其中当暴露于包含微粒的物质（例如发动机油）时，声波传感元件响应于相位变化，频率变化， 和/或与所述微粒相关联的噪声电平变化，以便识别所述微粒的噪声特征，因此识别所述微粒之间的差异以检测与所述微粒相关的数据。

公开(公告)号：US20070074562A1

公开(公告)日：2007-04-05

申请号：US11244594

申请日：2005-10-05

申请人： James Liu ,  Aziz Rahman ,  Michael Rhodes

发明人： James Liu ,  Aziz Rahman ,  Michael Rhodes

IPC分类号： G01N33/26

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.

摘要翻译： 油质量传感器系统包括声波粘度和蚀刻速率传感器。 蚀刻速率传感器系统包括压电基片和配置在压电基片上的一个或多个感测层。 金层通常配置在传感层之上，使得金层为感测层提供保护，从而延长所得蚀刻速率传感器系统的工作寿命。 感测层通常包括一个或多个反应电极。 蚀刻速率传感器系统可以适用于永久油质量传感器应用。

公开(公告)号：US20060243032A1

公开(公告)日：2006-11-02

申请号：US11119870

申请日：2005-04-29

申请人： James Liu ,  Michael Rhodes ,  Aziz Rahman

发明人： James Liu ,  Michael Rhodes ,  Aziz Rahman

IPC分类号： G01N37/00

CPC分类号： G01N11/00 ,  G01N29/022 ,  G01N29/036 ,  G01N29/326 ,  G01N29/348 ,  G01N33/2888 ,  G01N2011/0073 ,  G01N2291/0226 ,  G01N2291/0256 ,  G01N2291/02818 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

摘要： A method and system for detecting oil quality. The quality of engine oil can be determined utilizing an acoustic wave sensor to obtain viscosity and corrosivity data associated with the engine oil. The acoustic wave sensor is coated with a material that selectively reacts to at least one type of an acid in order to provide data indicative of the presence of the acids in the engine oil. The etch rate or the corrosivity of the engine oil can be determined based on the frequency data obtained as a result of the frequency measurement utilizing the acoustic wave sensor. The viscosity of the engine oil can additionally be obtained based on a measurement of phase and amplitude obtained from the data utilizing the acoustic wave sensor. The etch rate and the viscosity measurement provide data indicative of the quality of the engine oil.

摘要翻译： 油质检测方法及系统。 可以利用声波传感器来确定发动机机油的质量，以获得与发动机机油相关的粘度和腐蚀性数据。 声波传感器涂覆有选择性地与至少一种类型的酸反应的材料，以便提供指示发动机油中酸的存在的数据。 可以基于使用声波传感器进行频率测量的结果获得的频率数据来确定发动机油的蚀刻速率或腐蚀性。 基于从利用声波传感器的数据获得的相位和振幅的测量，可以另外获得发动机油的粘度。 蚀刻速率和粘度测量提供指示发动机机油质量的数据。