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1. 发明授权

US06204772B1 Method and apparatus for monitoring the position of a machine 有权
标题翻译：用于监测机器位置的方法和装置
公开(公告)号：US06204772B1
公开(公告)日：2001-03-20
申请号：US09464569
申请日：1999-12-16
申请人： Rodney W. DeMay , David B. Vernon , Daniel C. Wood , Donna J. Murr
发明人： Rodney W. DeMay , David B. Vernon , Daniel C. Wood , Donna J. Murr
IPC分类号： G08B2100
CPC分类号： B60R25/102 , B60R25/1012 , B60R25/33 , B60R2325/205 , B60W2550/402 , G07C5/008
摘要： The present invention provides a method and apparatus for monitoring the operation of a mobile machine. The machine includes a mobile communicator adapted to communicate with a remote monitoring station. The method includes the steps of receiving a configuration message from the remote monitoring station via a wireless communication link, comparing at least one of a current machine position to the configuration information a current machine time of operation to the configuration message, and sending an alarm message to the remote monitoring station in response the comparison.
摘要翻译：本发明提供了一种用于监视移动机器的操作的方法和装置。该机器包括适于与远程监视站通信的移动通信器。该方法包括以下步骤：经由无线通信链路从远程监控站接收配置消息，将当前机器位置与配置信息中的至少一个比较当前机器操作时间与配置消息进行比较，以及发送报警消息对远程监控站进行对比。

2. 发明授权

US5672831A Capacitive flow sensor 失效
标题翻译：电容式流量传感器
公开(公告)号：US5672831A
公开(公告)日：1997-09-30
申请号：US522024
申请日：1995-08-31
申请人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
发明人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
IPC分类号： G01F1/56
CPC分类号： G01F1/56
摘要： An apparatus for measuring the flow rate of a liquid in a line includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference.
摘要翻译：用于测量管线中液体流速的装置包括由一对电极形成的电容器。充电电路产生恒定的充电电流。充电电流用于将电容器充电至预定电压。定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的时间。定时电路产生脉宽调制信号。脉宽调制信号的大小表示时差。

3. 发明授权

US6152702A Capacitive sensing apparatus for sensing a plurality of operating parameters associated with a variable displacement piston pump 有权
标题翻译：用于感测与可变排量活塞泵相关联的多个操作参数的电容感测装置
公开(公告)号：US6152702A
公开(公告)日：2000-11-28
申请号：US275300
申请日：1999-03-24
申请人： George Codina , Donna J. Murr
发明人： George Codina , Donna J. Murr
IPC分类号： F04B1/32 , F04B49/06 , F04B49/00
CPC分类号： F04B1/32 , F04B49/065 , F04B2201/1201 , F04B2205/04 , F04B2205/09
摘要： An apparatus and method for sensing a parameter of a hydraulic pump. The hydraulic pump includes a housing and an input shaft. The shaft is rotationally driven relative to the housing and electrically coupled to the housing. The hydraulic pump forms a variable capacitor. The apparatus includes an electrode portion positioned adjacent to the input shaft and is electrically isolated from the housing and input shaft. The electrode portion and the input shaft form a fixed capacitor. The fixed capacitor and the variable capacitor are coupled. The apparatus supplies electrical energy to the electrode portion and produces a capacitive signal indicative of the capacitance value of the variable capacitor. The apparatus further applies a filter to the capacitive signal and produces a filtered capacitive signal. The parameter of the hydraulic pump is determined as a function of the filtered capacitive signal.
摘要翻译：一种感应液压泵参数的装置和方法。液压泵包括壳体和输入轴。轴相对于壳体旋转地驱动并且电耦合到壳体。液压泵形成可变电容器。该装置包括邻近输入轴定位并与外壳和输入轴电隔离的电极部分。电极部分和输入轴形成固定电容器。固定电容器和可变电容器耦合。该装置向电极部提供电能，并产生表示可变电容器的电容值的电容信号。该装置还对电容信号施加滤波器并产生经滤波的电容信号。液压泵的参数被确定为滤波电容信号的函数。

4. 发明授权

US5670721A Capacitive pressure sensor with heated electrodes 失效
标题翻译：具有加热电极的电容式压力传感器
公开(公告)号：US5670721A
公开(公告)日：1997-09-23
申请号：US521601
申请日：1995-08-31
申请人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
发明人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
IPC分类号： G01L9/12 , G01L11/00
CPC分类号： G01L11/00 , G01L9/12
摘要： An apparatus for measuring the pressure of a liquid in a container includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the elapsed time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference and thus, the pressure within the container.
摘要翻译：用于测量容器中的液体的压力的装置包括由一对电极形成的电容器。充电电路产生恒定的充电电流。充电电流用于将电容器充电至预定电压。定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的经过时间。定时电路产生脉宽调制信号。脉冲宽度调制信号的大小表示时间差，因此表示容器内的压力。

5. 发明授权

US5631568A Capacitive oil life sensor 失效
标题翻译：电容式油寿命传感器
公开(公告)号：US5631568A
公开(公告)日：1997-05-20
申请号：US522472
申请日：1995-08-31
申请人： George Codina , Donna J. Murr , Chandrasekar Ramamoorthy
发明人： George Codina , Donna J. Murr , Chandrasekar Ramamoorthy
IPC分类号： G01N27/22 , G01N33/28 , G01R27/26
CPC分类号： G01N33/2888 , G01N27/221 , G01N33/2835 , F01M2011/14
摘要： An apparatus for determining the remaining life of hydraulic fluid in a hydraulic system having a hydraulic container includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the elapsed time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit also produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference. A controller receives the pulse width modulated signal and determines the life of the hydraulic fluid.
摘要翻译：一种用于确定具有液压容器的液压系统中的液压流体的剩余寿命的装置包括由一对电极形成的电容器。充电电路产生恒定的充电电流。充电电流用于将电容器充电至预定电压。定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的经过时间。定时电路还产生脉宽调制信号。脉宽调制信号的大小表示时差。控制器接收脉宽调制信号并确定液压油的使用寿命。

6. 发明授权

US5808907A Method for providing information relating to a mobile machine to a user 失效
标题翻译：向用户提供与移动机相关的信息的方法
公开(公告)号：US5808907A
公开(公告)日：1998-09-15
申请号：US760496
申请日：1996-12-05
申请人： Satish M. Shetty , David R. Schricker , Donna J. Murr
发明人： Satish M. Shetty , David R. Schricker , Donna J. Murr
IPC分类号： G05B23/02 , G07C5/00 , G01B17/00
CPC分类号： G07C5/008 , Y10S707/99931 , Y10S707/99936 , Y10S707/99943 , Y10S707/99945
摘要： A method for providing information relating to a machine to a user is provided. The method includes the steps of sensing predetermined events relating to the machine and producing corresponding event signals, delivering the event signals to a remote site, comparing the event signals to a profile of events corresponding to the user, and delivering a notification signal to the user if the event signals match the profile.
摘要翻译：提供了一种用于向用户提供与机器有关的信息的方法。该方法包括以下步骤：感测与机器相关的预定事件并产生相应的事件信号，将事件信号传送到远程站点，将事件信号与对应于用户的事件简档进行比较，以及向用户传送通知信号如果事件信号与配置文件匹配。

7. 发明授权

US5668309A Capacitive particle sensor 失效
标题翻译：电容粒子传感器
公开(公告)号：US5668309A
公开(公告)日：1997-09-16
申请号：US521861
申请日：1995-08-31
申请人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
发明人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
IPC分类号： G01N15/06 , G01N27/22 , H04N5/21
CPC分类号： G01N15/0656 , G01N33/2858
摘要： An apparatus for detecting particles within a hydraulic system having a hydraulic line includes a capacitor formed by a pair of electrodes. A charging circuit produces a charging current of constant magnitude. The charging current is used to charge the capacitor to a predetermined voltage. A timing circuit measures the elapsed time between the time at which the charging circuit begins to produce the charging current and the time at which the capacitor has been charged to the predetermined voltage. The timing circuit produces a pulse width modulated signal. The magnitude of the pulse width modulated signal is indicative of the time difference. A controller receives the pulse width modulated signal and detects particles by comparing the duration of each pulse with a reference pulse.
摘要翻译：一种用于检测具有液压管线的液压系统中的颗粒的装置包括由一对电极形成的电容器。充电电路产生恒定的充电电流。充电电流用于将电容器充电至预定电压。定时电路测量充电电路开始产生充电电流的时间与电容器已充电到预定电压的时间之间的经过时间。定时电路产生脉宽调制信号。脉宽调制信号的大小表示时差。控制器接收脉冲宽度调制信号，并通过比较每个脉冲的持续时间和参考脉冲来检测粒子。

8. 发明授权

US5646539A Multi-purpose capacitive sensor 失效
标题翻译：多功能电容传感器
公开(公告)号：US5646539A
公开(公告)日：1997-07-08
申请号：US521719
申请日：1995-08-31
申请人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
发明人： George Codina , Chandrasekar Ramamoorthy , Donna J. Murr
IPC分类号： G01F1/56 , F15B19/00 , G01L9/12 , G01V3/08 , G01N27/22 , G01N11/02 , G01N15/04
CPC分类号： F15B19/00
摘要： An apparatus for sensing two parameters of a hydraulic system having a hydraulic line includes a pair of electrodes contained within the line and oppositely spaced, forming a capacitor. The apparatus alternately produces first and second charging currents having first and second constant magnitudes, respectively, and charges the capacitor to respective first and second predetermined voltages. The apparatus detects the time needed to charge to the first and second predetermined voltages and produces a pulse width modulated signal having a series of alternating first and second pulses. The first and second pulses are indicative of the first and second parameters, respectively. The first pulse is defined by the time required to charge the capacitor to the first predetermined voltage. The second pulse is defined by the time required to charge the capacitor to the second predetermined voltage. The apparatus determines the two parameters as a function of the pulse width modulated signal.
摘要翻译：一种用于检测具有液压管路的液压系统的两个参数的装置包括一对电极，其包含在该线内且相对间隔开，形成电容器。该装置分别交替地产生具有第一和第二恒定幅度的第一和第二充电电流，并将电容器充电到相应的第一和第二预定电压。该装置检测充电到第一和第二预定电压所需的时间，并产生具有一系列交替的第一和第二脉冲的脉宽调制信号。第一和第二脉冲分别表示第一和第二参数。第一脉冲由电容器充电到第一预定电压所需的时间限定。第二脉冲由将电容器充电到第二预定电压所需的时间限定。该装置将两个参数确定为脉宽调制信号的函数。

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