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    • 1. 发明授权
    • Actively stabilized platform system
    • 积极稳定的平台系统
    • US5922039A
    • 1999-07-13
    • US716568
    • 1996-09-19
    • Raymond V. WelchWilliam W. DorseyStephen J. FujikawaCharles F. SettgastDavid Reed
    • Raymond V. WelchWilliam W. DorseyStephen J. FujikawaCharles F. SettgastDavid Reed
    • H01Q1/18H01Q1/34G06F19/00
    • H01Q1/34H01Q1/18G05B2219/37376G05B2219/45001G05B2219/50046
    • A stabilized platform useable for various purposes to provide compensation for motion in two axes, such as pitch and roll on a ship. The system operates independently of the object to be stabilized and without the use of gyroscopes by using accelerometers, position sensors and a proportional drive controller augmented with estimation and filtering. The mechanical design reduces size, weight, and power requirements, by providing a system including a stabilized structure; a base structure for supporting the stabilized structure; an enclosure to protect the system from environment elements; first sensors for measuring angular displacements of the stabilized structure with respect to the base structure; and second sensors for measuring acceleration data and acceleration vector angles; and a processor for receiving the angular displacements of the stabilized structure with respect to the base structure from the first sensors and determining an angle of the base structure relative to the stabilized structure, for receiving the acceleration data and acceleration vector angles from the second sensors and determining a direction of local vertical relative to the base structure, and for maintaining the stabilized structure at a desired orientation utilizing the angle of the base structure relative to the stabilized structure and the direction of local vertical relative to the base structure.
    • 一个稳定的平台,可用于各种目的,以提供两个轴上的运动补偿,例如船上的俯仰和滚动。 该系统独立于要稳定的物体运行,并且不使用陀螺仪通过使用加速度计,位置传感器和具有估计和滤波的比例驱动控制器。 机械设计通过提供包括稳定结构的系统来减小尺寸,重量和功率要求; 用于支撑稳定结构的基础结构; 保护系统免受环境因素的外壳; 用于测量稳定结构相对于基座结构的角位移的第一传感器; 以及用于测量加速度数据和加速度矢量角度的第二传感器; 以及处理器,用于从所述第一传感器接收相对于所述基座结构的所述稳定结构的角位移,并且确定所述基部结构相对于所述稳定结构的角度,用于接收来自所述第二传感器的加速度数据和加速度矢量角,以及 确定相对于基础结构的局部垂直方向,以及利用基底结构相对于稳定结构的角度和相对于基部结构的局部垂直方向将稳定的结构维持在期望的方向。
    • 6. 发明申请
    • Alternate Path Indexing Device
    • 备用路径索引设备
    • US20070251697A1
    • 2007-11-01
    • US11380769
    • 2006-04-28
    • Yves LoretzDonald RossDavid Reed
    • Yves LoretzDonald RossDavid Reed
    • E21B34/10
    • E21B23/004E21B34/10
    • An embodiment of a method of shifting a valve between a plurality of flow condition positions, includes the steps of providing a mechanical indexer device in operational connection with a valve, the indexer device including a primary path defining a sequence through a plurality of valve positions at and between open and closed and a detent moveable along the primary path; providing at least one alternate path from a point along the primary path to a preceding position on the primary path along the sequence; shifting the valve to a subsequent position in the sequence; and shifting the valve to the preceding position in the sequence.
    • 一种在多个流动状态位置之间移动阀的方法的实施例包括提供与阀操作连接的机械分度器装置的步骤,所述分度器装置包括通过多个阀位置限定顺序的主路径 并且在打开和关闭之间以及沿着主路径可移动的制动器; 提供从所述主路径的点到沿着所述序列的所述主路径上的前一位置的至少一条备用路径; 将阀门按顺序移动到随后的位置; 并按顺序将阀移至前一位置。
    • 7. 发明申请
    • RADIATION DETECTOR
    • 辐射探测器
    • US20070205370A1
    • 2007-09-06
    • US11239435
    • 2005-09-22
    • Trevor MurdochDavid Reed
    • Trevor MurdochDavid Reed
    • G01T1/20
    • G01T1/17
    • The invention is a digital radiation detector utilizing the stable timing functions of a microcontroller or plurality of microcontrolling devices to perform three independent functions. A first timer generates a continuous square wave output that is fed through a class B amplifier to yield a stable, drift-free power supply for a connected radiation sensor. A second timer is used as an event counter for counting the processed pulses coming from the radiation sensor. A third timer acts as a real time clock generating a one-second interrupt for quantifying the number of counts per second. The number of counts per second can be communicated as raw data through a communication interface or presented as a number of audible or visual displays.
    • 本发明是利用微控制器或多个微控制器件的稳定定时功能执行三个独立功能的数字辐射探测器。 第一定时器产生连续的方波输出,该输出通过B类放大器馈送,以产生用于连接的辐射传感器的稳定,无漂移的电源。 第二计时器用作对来自辐射传感器的经处理的脉冲进行计数的事件计数器。 第三个定时器用作实时时钟,产生一秒钟的中断,用于量化每秒计数。 每秒的计数可以作为原始数据通过通信接口传达,或作为多个可听或可视显示器呈现。