公开(公告)号：US06536275B1

公开(公告)日：2003-03-25

申请号：US09685357

申请日：2000-10-10

申请人： Scott Robert Durkee ,  Robert Downing LaClair

发明人： Scott Robert Durkee ,  Robert Downing LaClair

IPC分类号： G01F2328

CPC分类号： G10K11/02 ,  G01F22/00 ,  G01F23/2962 ,  G01F23/2968 ,  G01N29/024 ,  G01N29/28 ,  G01N2291/012 ,  G01N2291/02836 ,  G01N2291/02854 ,  G01N2291/02881 ,  G01S7/52006 ,  G01S7/539 ,  H04B11/00

摘要： An ultrasonic transducer is disclosed comprising a layer of piezoresonator material capable of transmitting from a top surface thereof an ultrasonic pulse into a tank of liquid and receiving at the top surface reflections of the transmitted pulse from the liquid; and a matching layer of pure crystalline Boron Nitride disposed on the top surface. The pure crystalline Boron Nitride layer is operative to match the acoustic impedances of the piezoresonator material and the tank liquid about the operational frequency passband of the ultrasonic pulse. The ultrasonic transducer may be disposed in an assembly for measuring a quantity of liquid in the tank. The assembly comprises a housing having a top surface for interfacing with the liquid of the container; the ultrasonic transducer disposed therein, the top and bottom surfaces of the piezoresonator layer covered with layers of conductive material; and a lead wire for each surface of the piezoresonator layer connected at one end to the conductive material layer thereof, the lead wires connectable at the other ends to a transducer driver/receiver circuit. The matching layer of pure crystalline Boron Nitride disposed on the top surface of the piezoresonator layer is configured as a window between the piezoresonator layer and the liquid at the top surface of the assembly. A surface of the matching layer at the liquid interface is covered with at least one metal layer.

摘要翻译： 公开了一种超声波换能器，其包括能够从其顶表面将超声波脉冲传输到液体罐中并且在上表面处接收来自液体的透射脉冲的反射的压电振动器材料层; 以及设置在顶表面上的纯结晶氮化硼的匹配层。 纯晶体氮化硼层可操作以使超声波脉冲的工作频率通带上的压阻振荡器材料和槽液体的声阻相匹配。 超声波换能器可以设置在用于测量罐中的液体量的组件中。 组件包括具有用于与容器的液体接合的顶表面的壳体; 设置在其中的超声波换能器，所述压电振动器层的顶表面和底表面覆盖有导电材料层; 以及在一端连接到其导电材料层的压电振子层的每个表面的引线，所述引线在另一端可连接到换能器驱动器/接收器电路。 设置在压电振荡器层的顶表面上的纯结晶氮化硼的匹配层被构造为在组件的顶表面处的压电保护层和液体之间的窗口。 在液体界面处的匹配层的表面被至少一个金属层覆盖。

公开(公告)号：US20130126612A1

公开(公告)日：2013-05-23

申请号：US13300105

申请日：2011-11-18

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： G06G7/80 ,  F42B10/26 ,  G06F19/00

CPC分类号： G01S3/783 ,  F41G7/346 ,  F41G7/36 ,  F42B15/01

摘要： An example method includes receiving output voltage data from an array of at least four thermopiles placed around the circumference of a projectile such that for any rotation of the projectile during flight thereof, at least a pair of the thermopile having upwardly-facing fields of view referenced to the earth-fixed coordinate system. The method includes determining the pair of upwardly-facing thermopiles based on the output voltage data from the array, with the respective pair of thermopiles including a thermopile p and next adjacent thermopile p+1. The method includes determining a ratio of the output voltage data from thermopiles p and p+1, and applying the ratio to a function associating, for any pair of thermopiles n and n+1, a ratio of output voltage data from thermopiles n and n+1, and a roll angle θn of thermopile n referenced to the earth-fixed coordinate system.

摘要翻译： 一个示例性方法包括从放射体周围放置的至少四个热电堆的阵列接收输出电压数据，使得对于抛射体在其飞行期间的任何旋转，至少一对具有向上的视场参考的热电堆 到地球固定坐标系。 该方法包括基于来自阵列的输出电压数据确定一对向上的热电堆，相应的热电堆对包括热电堆p和下一相邻热电堆p + 1。 该方法包括确定来自热电堆p和p + 1的输出电压数据的比率，并将该比率应用于与任何热电堆对n和n + 1对相关联的函数，来自热电堆n和n的输出电压数据的比率 +1，以及热电堆n的滚动角度，以地球固定坐标系为参考。

公开(公告)号：US06957582B1

公开(公告)日：2005-10-25

申请号：US10878034

申请日：2004-06-28

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： G01F23/28 ,  G01F23/296 ,  G01N29/04

CPC分类号： G01F23/2962 ,  G01N2291/02836

摘要： An aircraft ultrasonic system for fuel gauging and battle damage detection comprises: at least one ultrasonic transducer disposed at a fuel tank of the aircraft; a first circuit for exciting the at least one ultrasonic transducer to transmit an acoustic pulse toward a surface of fuel in the tank, the at least one ultrasonic transducer operative to receive acoustic echo pulses reflected from the fuel surface and convert the acoustic echo pulses to electrical echo pulses, the at least one ultrasonic transducer also operative to receive acoustic compression wavefront pulses impinging thereon and convert the acoustic compression wavefront pulses to electrical compression wavefront pulses; and a second circuit for receiving and processing the electrical echo and compression wavefront pulses from the at least one ultrasonic transducer, the second circuit operative to perform fuel quantity measurements using the electrical echo pulses and to perform battle damage detection using the electrical compression wavefront pulses. A counterpart method is further disclosed.

摘要翻译： 一种用于燃料测量和战斗伤害检测的飞行器超声波系统，包括：设置在飞行器的燃料箱处的至少一个超声换能器; 用于激励所述至少一个超声换能器以朝向所述罐中的燃料表面传输声脉冲的第一电路，所述至少一个超声换能器可操作以接收从所述燃料表面反射的声回波脉冲，并将所述声回波脉冲转换为电 回波脉冲，所述至少一个超声波换能器还可操作以接收入射在其上的声压缩波前脉冲，并将声压缩波前脉冲转换为电压缩波前脉冲; 以及第二电路，用于从所述至少一个超声波换能器接收和处理所述电回声和压缩波前脉冲，所述第二电路用于使用所述电回波脉冲执行燃料量测量并使用所述电压缩波前脉冲执行战斗损伤检测。 进一步公开对应方法。

公开(公告)号：US06662650B1

公开(公告)日：2003-12-16

申请号：US10314848

申请日：2002-12-09

申请人： Scott Robert Durkee ,  Keith Eugene Coffman

发明人： Scott Robert Durkee ,  Keith Eugene Coffman

IPC分类号： G01F2324

CPC分类号： G01F23/247

摘要： A method of detecting a dry/wet state of a dual thermistor bead sensor over a wide operating temperature range comprises the steps of: conducting first and second predetermined currents through one and another of the thermistor beads of the sensor, respectively, the second predetermined current being substantially less than the first predetermined current; measuring a first voltage across the one thermistor bead in response to the first predetermined current and generating a first signal representative thereof; measuring a second voltage across the other thermistor bead in response to the second predetermined current and generating a second signal representative thereof; modifying the second signal by an offset and gain to generate a third signal; and detecting the dry/wet state of the sensor over the wide operating temperature range based on the first and third signals. The first predetermined current is conducted through the one thermistor bead at an average current which renders the one thermistor bead a sense thermistor bead, and the second predetermined current is conducted through the other thermistor bead at an average current which renders the other thermistor bead a reference thermistor bead. Apparatus for implementing this method is also disclosed.

摘要翻译： 在宽工作温度范围内检测双热敏电阻珠传感器的干/湿状态的方法包括以下步骤：分别通过传感器的热敏电阻珠中的一个和另一个传导第一和第二预定电流第二预定电流 基本上小于第一预定电流; 响应于所述第一预定电流测量所述一个热敏电阻焊珠两端的第一电压并产生代表其的第一信号; 响应于所述第二预定电流测量所述另一个热敏电阻焊珠两端的第二电压并产生代表其的第二信号; 通过偏移和增益来修改第二信号以产生第三信号; 以及基于第一和第三信号在宽工作温度范围内检测传感器的干/湿状态。 第一预定电流以平均电流传导通过一个热敏电阻珠，其使得一个热敏电阻珠成为感测热敏电阻珠，并且第二预定电流以平均电流传导通过另一个热敏电阻珠，使得另一个热敏电阻珠成为参考 热敏电阻珠。 还公开了用于实现该方法的装置。

公开(公告)号：US06236142B1

公开(公告)日：2001-05-22

申请号：US09533552

申请日：2000-03-23

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： G01N2920

CPC分类号： G10K11/02 ,  G01F22/00 ,  G01F23/2962 ,  G01F23/2968 ,  G01N29/024 ,  G01N29/28 ,  G01N2291/012 ,  G01N2291/02836 ,  G01N2291/02854 ,  G01N2291/02881 ,  G01S7/52006 ,  G01S7/539 ,  H04B11/00

摘要： The present invention is directed to an improved method and apparatus for determining ultrasonically the quantity of liquid in a tank having multiple inventive aspects. One aspect includes an ultrasonic transducer having three layers, the top two each having a thickness of approximately one-quarter wavelength and having materials with corresponding acoustic impedances which together are chosen to match the acoustic impedance of the bottom layer to the acoustic impedance of the tank liquid about the operational frequency passband of the ultrasonic pulse transmitted from the transducer. Another aspect involves a system and method for discriminating between echo sources of an ultrasonic burst echo signal resulting from an incipient ultrasonic burst signal transmitted from the ultrasonic transducer. A further aspect involves the method of determining ultrasonically the height of a thermally stratified liquid in a tank using at least one ultrasonic transducer disposed at the bottom of the tank for transmitting an ultrasonic pulse towards the height surface of the tank liquid and for receiving ultrasonic reflections therefrom. A still further aspect involves a circuit for generating an electrical excitation signal for the ultrasonic transducer including a step-up transformer which affords DC isolation between the excitation signal generator and the transducer and which conveys the excitation signal differentially to the transducer in an electrically balanced configuration.

公开(公告)号：US08912743B2

公开(公告)日：2014-12-16

申请号：US13286591

申请日：2011-11-01

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： H02P1/04 ,  H02P6/18

CPC分类号： H02P6/186 ,  H02P6/181 ,  H02P6/185

摘要： An example apparatus includes a controller configured to control operation of a salient-type, multiphase motor in accordance with a technique including periodic on and off-times, the motor including a stator and a rotor. The controller is configured to calculate or receive values representing changes in current to the motor during the respective on and off-times or measurements proportional thereto, and calculate an inductance of the motor as a function of the values and a supply voltage to the motor. And the controller is configured to determine a position of the rotor based on the inductance of the motor, and control operation of the motor based on the position of the rotor.

摘要翻译： 示例性装置包括：控制器，其被配置为根据包括周期性导通和关闭时间的技术来控制凸型多相电动机的运行，所述电动机包括定子和转子。 控制器被配置为在相应的开和关时间或与其成比例的测量期间计算或接收表示对电动机的电流变化的值，并且根据值和电动机的电源电压计算电动机的电感。 并且控制器被配置为基于电动机的电感确定转子的位置，并且基于转子的位置来控制电动机的操作。

公开(公告)号：US06397679B1

公开(公告)日：2002-06-04

申请号：US09539153

申请日：2000-03-30

申请人： Mokhtar M. Sadok ,  Scott Robert Durkee

发明人： Mokhtar M. Sadok ,  Scott Robert Durkee

IPC分类号： G01N2924

CPC分类号： G01S7/539

摘要： A method of and apparatus for discriminating among ultrasonic echoes reflected from various objects in a tank containing liquid is disclosed. Ultrasonic signals are generated from an ultrasonic transducer into liquid contained in a tank. Ultrasonic echoes are received by the transducer from various objects in the tank including a surface of the liquid in response to the generated ultrasonic signal and are converted into electrical echo signals representative thereof. Data samples of the electrical echo signals are generated and processed by a signal processor using wavelet function processing to generate wavelet coefficients thereof in a wavelet domain. The wavelet coefficients of the echo data samples are used to discriminate the ultrasonic echoes reflected from the various objects in or part of the tank. In one embodiment, echoes reflected from the liquid surface are discriminated from echoes reflected from other objects based on the wavelet coefficients of the echo data samples of each. In another embodiment, energy of each of the ultrasonic echoes determined from the wavelet coefficients thereof is used to discriminate the ultrasonic echoes from the various reflective surfaces.

摘要翻译： 公开了一种用于区分从容纳罐的液体中的各种物体反射的超声回波的方法和设备。 超声波信号从超声波换能器产生到容纳在容器中的液体中。 响应于所生成的超声波信号，换能器从容器中的各种物体接收包括液体表面的超声波回波并被转换为代表其的电回声信号。 电子回波信号的数据样本由信号处理器使用小波函数处理产生和处理，以在小波域中产生其小波系数。 回波数据样本的小波系数用于区分反映在罐中或部分罐中的各种物体的超声回波。 在一个实施例中，基于每个回波数据样本的小波系数，从液体表面反射的回波与从其他物体反射的回波区分开来。 在另一个实施例中，使用从其小波系数确定的每个超声波回波的能量来区分来自各种反射表面的超声回波。

公开(公告)号：US06215226B1

公开(公告)日：2001-04-10

申请号：US09534408

申请日：2000-03-23

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： H01L4108

CPC分类号： G10K11/02 ,  G01F22/00 ,  G01F23/2962 ,  G01F23/2968 ,  G01N29/024 ,  G01N29/28 ,  G01N2291/012 ,  G01N2291/02836 ,  G01N2291/02854 ,  G01N2291/02881 ,  G01S7/52006 ,  G01S7/539 ,  H04B11/00

摘要： The present invention is directed to an improved method and apparatus for determining ultrasonically the quantity of liquid in a tank having multiple inventive aspects. One aspect includes an ultrasonic transducer having three layers, the top two each having a thickness of approximately one-quarter wavelength and having materials with corresponding acoustic impedances which together are chosen to match the acoustic impedance of the bottom layer to the acoustic impedance of the tank liquid about the operational frequency passband of the ultrasonic pulse transmitted from the transducer. Another aspect involves a system and method for discriminating between echo sources of an ultrasonic burst echo signal resulting from an incipient ultrasonic burst signal transmitted from the ultrasonic transducer. A further aspect involves the method of determining ultrasonically the height of a thermally stratified liquid in a tank using at least one ultrasonic transducer disposed at the bottom of the tank for transmitting an ultrasonic pulse towards the height surface of the tank liquid and for receiving ultrasonic reflections therefrom. A still further aspect involves a circuit for generating an electrical excitation signal for the ultrasonic transducer including a step-up transformer which affords DC isolation between the excitation signal generator and the transducer and which conveys the excitation signal differentially to the transducer in an electrically balanced configuration.

摘要翻译： 本发明涉及一种用于超声波确定具有多个发明方面的罐中的液体的量的改进方法和装置。 一个方面包括具有三层的超声波换能器，顶部两个具有大约四分之一波长的厚度，并且具有相应的声阻抗的材料，这些材料一起被选择成将底层的声阻抗与罐的声阻抗匹配 关于从换能器发送的超声脉冲的工作频率通带的液体。 另一方面涉及一种用于区分由超声波换能器发射的初始超声波脉冲信号产生的超声波脉冲串回波信号的回波源的系统和方法。 另一方面涉及使用设置在罐底部的至少一个超声波换能器来超声波地确定罐中的热分层液体的高度的方法，用于将超声脉冲传送到罐液体的高度表面并用于接收超声波反射 由此。 另一方面涉及一种用于产生用于超声波换能器的电激励信号的电路，包括升压变压器，该升压变压器在激励信号发生器和换能器之间提供DC隔离，并且以电平衡配置将该激励信号差分地传递给换能器 。

公开(公告)号：US6157894A

公开(公告)日：2000-12-05

申请号：US996858

申请日：1997-12-23

申请人： Robert Alan Hess ,  Mark George Walker ,  Radoslaw Romuald Zakrzewski ,  Luis Carlos Rabelo ,  Robert Curtis North ,  Scott Robert Durkee

发明人： Robert Alan Hess ,  Mark George Walker ,  Radoslaw Romuald Zakrzewski ,  Luis Carlos Rabelo ,  Robert Curtis North ,  Scott Robert Durkee

IPC分类号： B64D37/00 ,  G01F23/00 ,  G01F23/18 ,  G01F23/296 ,  G01F17/00

CPC分类号： G01F23/296 ,  B64D37/00 ,  G01F23/0069 ,  G01F23/0076 ,  G01F23/18

摘要： Liquid gauging system for liquid in a container includes a plurality of sensors; each of the sensors measuring a respective parameter of the liquid in the container and producing a sensor output related to its measured parameter; there being at least two sensors that measure different parameters of the liquid; and a processor that receives the sensor outputs and determines, based on the sensor outputs, a quantity of the liquid in the container; the processor determining the quantity by executing at least one sensor fusion algorithm that is based on a set of relationships between the measured parameters and the quantity. The gauging system can also include a data fusion process for determining quantity based on a plurality of quantity measurements.

摘要翻译： 用于容器中的液体的液体测量系统包括多个传感器; 每个传感器测量容器中的液体的相应参数，并产生与其测量参数相关的传感器输出; 至少有两个测量液体不同参数的传感器; 以及处理器，其接收所述传感器输出并基于所述传感器输出确定所述容器中的液体的量; 所述处理器通过执行至少一个传感器融合算法来确定所述数量，所述至少一个传感器融合算法基于所述测量参数与所述数量之间的一组 测量系统还可以包括用于基于多个量测量来确定数量的数据融合过程。

公开(公告)号：US08561898B2

公开(公告)日：2013-10-22

申请号：US13300105

申请日：2011-11-18

申请人： Scott Robert Durkee

发明人： Scott Robert Durkee

IPC分类号： G06G7/80

CPC分类号： G01S3/783 ,  F41G7/346 ,  F41G7/36 ,  F42B15/01

摘要： An example method includes receiving output voltage data from an array of at least four thermopiles placed around the circumference of a projectile such that for any rotation of the projectile during flight thereof, at least a pair of the thermopile having upwardly-facing fields of view referenced to the earth-fixed coordinate system. The method includes determining the pair of upwardly-facing thermopiles based on the output voltage data from the array, with the respective pair of thermopiles including a thermopile p and next adjacent thermopile p+1. The method includes determining a ratio of the output voltage data from thermopiles p and p+1, and applying the ratio to a function associating, for any pair of thermopiles n and n+1, a ratio of output voltage data from thermopiles n and n+1, and a roll angle θn of thermopile n referenced to the earth-fixed coordinate system.

摘要翻译： 一个示例性方法包括从放射体周围放置的至少四个热电堆的阵列接收输出电压数据，使得对于抛射体在其飞行期间的任何旋转，至少一对具有向上的视场参考的热电堆 到地球固定坐标系。 该方法包括基于来自阵列的输出电压数据确定一对向上的热电堆，相应的热电堆对包括热电堆p和下一相邻热电堆p + 1。 该方法包括确定来自热电堆p和p + 1的输出电压数据的比率，并将该比率应用于与任何热电堆对n和n + 1对相关联的函数，来自热电堆n和n的输出电压数据的比率 +1，和热电堆n的滚动角度参考地固定坐标系。