公开(公告)号：US06433560B1

公开(公告)日：2002-08-13

申请号：US09944897

申请日：2001-08-31

申请人： James E. Hansen ,  Edward F. Buck ,  Lian Q. Zou ,  Victor E. Shtaida ,  Peter J. McGinnis ,  Birger Pahl

发明人： James E. Hansen ,  Edward F. Buck ,  Lian Q. Zou ,  Victor E. Shtaida ,  Peter J. McGinnis ,  Birger Pahl

IPC分类号： G01R2726

CPC分类号： G01F23/268 ,  G01F23/265 ,  G01F23/266 ,  G01N33/2888

摘要： A combination fluid condition monitor and fluid level sensor having an excitation electrode divided into two segments disposed closely spaced and parallel to current sensing electrode. For the fluid condition monitoring mode function both segments of the excitation electrode are commonly excited sequentially at high and low frequencies and the currents sensed in the sensing electrode employed to compute the difference in impedance for determining the fluid condition. For the level sensing mode function a mode switching circuit grounds one of the excitation electrode segments and excites the other then grounds the other segment and excites the one segment and the resultant currents ratioed to determine the amount of electrode immersed in fluid and hence the fluid level.

摘要翻译： 一种组合流体状态监测器和液位传感器，其具有被分成与电流感测电极紧密隔开并平行设置的两个段的激励电极。 对于流体状况监测模式功能，激励电极的两个部分通常在高频和低频下顺序地被激励，并且感测电极中检测到的电流用于计算阻抗差以确定流体状况。 对于电平感测模式功能，模式切换电路接地一个激励电极段并激励另一个激励，然后使另一个部分接地，并激励一个部分，并将所得到的电流比值确定浸入流体中的电极的量，从而确定液位 。

公开(公告)号：US06771074B2

公开(公告)日：2004-08-03

申请号：US10060107

申请日：2002-01-31

申请人： Lian Q. Zou ,  James E. Hansen ,  Victor E. Shtaida

发明人： Lian Q. Zou ,  James E. Hansen ,  Victor E. Shtaida

IPC分类号： G01N2702

CPC分类号： G01N27/226

摘要： A probe assembly for use in monitoring fluid conditions in real time in a transducer utilizing impedance spectroscopy and having two closely spaced tubular concentric electrodes. The electrodes have a surface area of about 8.1 to 10.8 cm2 spaced in the range of about 0.1 to 0.55 mm. In one embodiment a concentric outer tubular Faraday shield is employed for monitoring fluid in a non-metallic vessel. The probe assembly is particularly suitable for monitoring hydraulic fluid including automatic transmission fluid and mineral based engine oil for diesel and gasoline engines.

摘要翻译： 探头组件，用于利用阻抗光谱仪实时监测流体条件，并具有两个紧密间隔的管状同心电极。 电极具有在约0.1至0.55mm范围内的约8.1至10.8cm 2的表面积。 在一个实施例中，使用同心的外管法拉第屏蔽来监测非金属容器中的流体。 探头组件特别适用于监测液压流体，包括用于柴油和汽油发动机的自动变速器油和矿物基发动机油。

公开(公告)号：US06377052B1

公开(公告)日：2002-04-23

申请号：US09433495

申请日：1999-11-03

申请人： Peter J. McGinnis ,  Paul G. Rops ,  Mark H. Polczynski ,  Francis C. Edrozo ,  Richard W. Hirthe ,  Steven R. Schachameyer ,  Lian Q. Zou

发明人： Peter J. McGinnis ,  Paul G. Rops ,  Mark H. Polczynski ,  Francis C. Edrozo ,  Richard W. Hirthe ,  Steven R. Schachameyer ,  Lian Q. Zou

IPC分类号： G02N2702

CPC分类号： G01N27/07 ,  G01N27/02 ,  G01N33/2888

摘要： A method for real time monitoring fluid in a vessel with a probe having a pair of electrodes immersed in the fluid. The disclosed probe has the electrodes arranged helically on a rod, sized and configured for insertion in an engine dipstick hole. Preferably, the probe has spiral electrode winding up regions different pitch to provide improved impedance response at low fractional Hertz and high (at least one Hertz) frequencies of excitation. In one version with alternating voltage the difference in current magnitude measured at the low and high frequencies is compared with stored known values for known fluid conditions and an electrical signal indicative of fluid condition is generated. Examples with engine drain oil and heavy duty transmission lubricant fluid are presented. The impedance properties measured can determine the percentage remaining useful life (RUL) of the fluid. In another version of the method the current phase shift angle is measured at the fractional Hertzian frequency; and, from known values of current phase shift angle of the fluid, at various conditions, the condition of the fluid determined. The differential current measured and the measured phase shift angle may be combined, for example, by the square of the sum of the squares procedure to provide an enhanced impedance change indicator.

摘要翻译： 一种用于具有探针的血管中的实时监测流体的方法，所述探针具有浸在流体中的一对电极。 所公开的探针具有螺旋地布置在杆上的电极，其尺寸和构造用于插入发动机量油尺孔中。 优选地，探针具有不同间距的螺旋电极卷绕区域，以在低分数赫兹和高（至少一赫兹）激发频率下提供改进的阻抗响应。 在具有交流电压的一个版本中，在低频和高频测量的电流幅度差与已知流体条件的已知已知值进行比较，并且产生指示流体状态的电信号。 介绍了发动机排放油和重型变速器润滑油的实例。 测量的阻抗特性可以确定流体的剩余使用寿命（RUL）百分比。 在该方法的另一个版本中，当前相移角以分数赫兹频率测量; 并且根据流体的当前相移角的已知值，在各种条件下，确定流体的状态。 测量的差动电流和测量的相移角可以例如通过平方和的程序的平方相加来提供增强的阻抗变化指示器。

公开(公告)号：US07576957B2

公开(公告)日：2009-08-18

申请号：US11414918

申请日：2006-05-01

申请人： Xin Zhou ,  Brad R. Leccia ,  Lian Q. Zou ,  James J. Benke

发明人： Xin Zhou ,  Brad R. Leccia ,  Lian Q. Zou ,  James J. Benke

IPC分类号： H02H3/00

CPC分类号： H01H9/563 ,  H01H33/022 ,  H01H33/666

摘要： A circuit breaker includes a circuit breaker housing and a plurality of independent poles. Each of the independent poles includes separable contacts, a voltage sensor mounted on or within the circuit breaker housing and being structured to sense voltage operatively associated with the separable contacts, and an electro-magnetic actuator structured to open and close the separable contacts. A point-on-wave controller is housed by the circuit breaker housing and cooperates with the sensors and the actuators of the independent poles to independently and synchronously open and close the separable contacts of the independent poles.

摘要翻译： 断路器包括断路器壳体和多个独立的极点。 每个独立的极包括可分离触点，安装在断路器壳体上或其内部的电压传感器，并被构造为感测与可分离触点可操作地相关联的电压，以及构造成打开和闭合可分离触点的电磁致动器。 点对点控制器由断路器壳体容纳并与传感器和独立电极的致动器配合，以独立和同步地打开和闭合独立电极的可分离触点。