公开(公告)号：US07095007B2

公开(公告)日：2006-08-22

申请号：US10944807

申请日：2004-09-21

Applicant: Joe Paul Predina ,  Frederick Lee Williams

Inventor： Joe Paul Predina ,  Frederick Lee Williams

IPC: H01L31/00

CPC classification number: G01J5/522 ,  G01J1/08 ,  G01J3/4535 ,  G01N2201/124

Abstract: A system for measuring optical detector linearity according to the present invention employs a laser source that illuminates an integrating sphere. The sphere randomizes the laser signal phase and produces a uniform intensity over the sphere output. A collimator expands the sphere output for entry into an interferometer, where the incident optical energy is amplitude modulated in a sinusoidal fashion by a linear mechanical mirror movement. Optical band filters eliminate significant harmonic content being present on a pre-detected optical signal. Sampling of the detected signal energy is performed synchronous to the mechanical mirror position to assure sinusoidal response. The sampled signals are processed to separately determine signal harmonic components attributed to detector non-linearity and multiple laser reflections within the system. The system utilizes at least two measurements at two different laser intensities. An optional third measurement of background radiance may be applied to the first two measurements to enhance accuracy.

Abstract translation: 根据本发明的用于测量光学检测器线性度的系统采用照亮积分球的激光源。 球体将激光信号相位随机化，并在球体输出上产生均匀的强度。 准直器扩展球体输出以进入干涉仪，其中入射光能量通过线性机械反射镜运动以正弦方式进行幅度调制。 光带滤波器消除了在预先检测的光信号上存在的显着谐波含量。 检测到的信号能量的采样与机械反射镜位置同步地进行，以确保正弦响应。 处理采样的信号以分别确定归因于检测器非线性和系统内的多个激光反射的信号谐波分量。 该系统在两种不同的激光强度下使用至少两次测量。 背景辐射度的可选的第三测量可以应用于前两次测量以提高精度。

公开(公告)号：US06686716B1

公开(公告)日：2004-02-03

申请号：US09906795

申请日：2001-07-18

Applicant: Joe Paul Predina ,  Harold L. Broberg

Inventor： Joe Paul Predina ,  Harold L. Broberg

IPC: G05B1101

CPC classification number: G05B19/19 ,  G05B13/0255 ,  G05B13/0265 ,  G05B2219/41086 ,  G05B2219/42122 ,  G05B2219/42152

Abstract: A motor control method and apparatus produce rapid, point-to-point movement while minimizing settling time and peak power consumption in a servo-control system with a periodic input. Rapid open-loop movement is combined with tuning of the open-loop input based on position and velocity of the output when the loop is closed. Iterative learning control is used to adjust open-loop commands in subsequent cycles to reduce residual vibrations and quickly reach the desired final position. The apparatus and method can be used in motion control applications requiring rapid, periodic, point-to-point movement, such as weather satellite servo systems with a periodic input containing multiple step responses within each period.

Abstract translation: 电动机控制方法和装置产生快速的点对点运动，同时使具有周期性输入的伺服控制系统中的建立时间和峰值功耗最小化。 当循环闭合时，快速开环运动结合基于输出位置和速度的开环输入的调谐。 迭代学习控制用于调整后续循环中的开环命令，以减少残余振动并迅速达到所需的最终位置。 该装置和方法可用于需要快速，周期性，点对点移动的运动控制应用中，例如具有在每个周期内包含多个步骤响应的周期性输入的气象卫星伺服系统。