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    • 2. 发明授权
    • Inclinometer having two degrees of freedom
    • 倾角仪具有两个自由度
    • US4627172A
    • 1986-12-09
    • US641790
    • 1984-08-17
    • Martin A. Afromowitz
    • Martin A. Afromowitz
    • G01C9/06
    • G01C9/06
    • An inclinometer, adapted to be rigidly secured to an object, for detecting the amount and direction of the inclination of the object in any direction with respect to a horizontal or other reference plane. The inclinometer comprises a fiber optic rod rigidly mounted at one of its ends and having a weight secured to its free end. The free end of the rod has two degrees of freedom of motion with respect to its rigidly mounted end. Light is supplied to the rod's mounted end and light emitted from the rod's free end falls on a continuous two dimensional optical detection surface area of an optical detector which uniquely detects the position of the spot of light falling anywhere on its surface area, regardless of the direction in which the spot of light moves on its surface area. From the position of the spot of light on the surface area, the amount and direction of inclination of the object can be determined. Undesired oscillations of the free end of the optical fiber rod, caused by acceleration of the inclinometer, are reduced by surrounding the rod and/or weight with a viscous liquid, and/or by also providing fins on the weight to increase its fluid resistance. A temperature sensor allows for correction of the inclination angle detected caused by changes in temperature of the inclinometer. A pure fused silica optical fiber rod is preferred, to prevent undesired hysteresis which might otherwise be caused by an elastic deformation of the optical fiber rod.
    • 适于刚性地固定到物体上的倾斜计,用于检测物体相对于水平或其它参考平面在任何方向上倾斜的量和方向。 倾斜计包括刚性地安装在其一个端部处并且具有固定到其自由端的重物的光纤棒。 杆的自由端相对于其刚性安装的端部具有两个运动自由度。 光被提供到杆的安装端,并且从杆的自由端发射的光落在光学检测器的连续的二维光学检测表面区域上,其唯一地检测到其表面区域任何地方落下的光斑的位置,而不管 光斑在其表面上移动的方向。 从表面积上的光点的位置可以确定物体的倾斜量和方向。 通过用粘性液体围绕杆和/或重量,和/或通过还提供重量上的翅片以增加其流体阻力,减少了由倾斜仪的加速度引起的光纤杆的自由端的不期望的振荡。 温度传感器允许校正由倾斜仪的温度变化引起的倾斜角度。 优选纯熔融石英光纤棒,以防止可能由光纤棒的弹性​​变形引起的不希望的滞后现象。
    • 7. 发明授权
    • Infrared imaging sensor
    • 红外成像传感器
    • US07956326B1
    • 2011-06-07
    • US11787712
    • 2007-04-17
    • George KychakoffMartin A. AfromowitzRichard E. Hogle
    • George KychakoffMartin A. AfromowitzRichard E. Hogle
    • G01J5/02
    • G01N17/008G01J2005/0077
    • A system for detection and control of deposition on pendant tubes in recovery and power boilers includes one or more deposit monitoring sensors operating in infrared regions of about 4 or 8.7 microns and directly producing images of the interior of the boiler, or producing feeding signals to a data processing system for information to enable a distributed control system by which the boilers are operated to operate said boilers more efficiently. The data processing system includes an image pre-processing circuit in which a 2-D image formed by the video data input is captured, and includes a low pass filter for performing noise filtering of said video input. It also includes an image compensation system for array compensation to correct for pixel variation and dead cells, etc., and for correcting geometric distortion. An image segmentation module receives a cleaned image from the image pre-processing circuit for separating the image of the recovery boiler interior into background, pendant tubes, and deposition. It also accomplishes thresholding/clustering on gray scale/texture and makes morphological transforms to smooth regions, and identifies regions by connected components. An image-understanding unit receives a segmented image sent from the image segmentation module and matches derived regions to a 3-D model of said boiler. It derives a 3-D structure the deposition on pendant tubes in the boiler and provides the information about deposits to the plant distributed control system for more efficient operation of the plant pendant tube cleaning and operating systems.
    • 用于检测和控制回收和动力锅炉中的悬挂管上的沉积物的系统包括一个或多个在约4或8.7微米的红外区域中操作的沉积物监测传感器,并且直接产生锅炉内部的图像,或者产生供给信号到 数据处理系统,用于实现用于操作锅炉的分布式控制系统以更有效地操作所述锅炉的信息。 数据处理系统包括其中捕获由视频数据输入形成的2-D图像的图像预处理电路,并且包括用于对所述视频输入进行噪声滤波的低通滤波器。 它还包括用于阵列补偿的图像补偿系统,以校正像素变化和死细胞等,并且用于校正几何失真。 图像分割模块从图像预处理电路接收清洁的图像,用于将回收锅炉内部的图像分离为背景,垂直管和沉积。 它还实现了灰度/纹理的阈值化/聚类,并使形态学变换到平滑区域,并通过连接的组件识别区域。 图像理解单元接收从图像分割模块发送的分割图像,并将导出的区域匹配到所述锅炉的3-D模型。 它产生三维结构,沉积在锅炉的垂直管上,并提供关于沉积物的信息到工厂分布式控制系统,以更有效地操作植物吊灯清洁和操作系统。
    • 8. 发明授权
    • Sensing system for detection and control of deposition on pendant tubes in recovery and power boilers
    • 用于检测和控制回收和动力锅炉悬挂管上沉积物的检测系统
    • US07437025B2
    • 2008-10-14
    • US11137089
    • 2005-05-24
    • George KychakoffMartin A. AfromowitzRichard E. Hogle
    • George KychakoffMartin A. AfromowitzRichard E. Hogle
    • G06K9/20G06K9/00
    • G01N25/72G01N17/008
    • A system for detection and control of deposition on pendant tubes in recovery and power boilers includes one or more deposit monitoring sensors operating in infrared regions of about 4 or 8.7 microns and directly producing images of the interior of the boiler, or producing feeding signals to a data processing system for information to enable a distributed control system by which the boilers are operated to operate said boilers more efficiently. The data processing system includes an image pre-processing circuit in which a 2-D image formed by the video data input is captured, and includes a low pass filter for performing noise filtering of said video input. It also includes an image compensation system for array compensation to correct for pixel variation and dead cells, etc., and for correcting geometric distortion. An image segmentation module receives a cleaned image from the image pre-processing circuit for separating the image of the recovery boiler interior into background, pendant tubes, and deposition. It also accomplishes thresholding/clustering on gray scale/texture and makes morphological transforms to smooth regions, and identifies regions by connected components. An image-understanding unit receives a segmented image sent from the image segmentation module and matches derived regions to a 3-D model of said boiler. It derives a 3-D structure the deposition on pendant tubes in the boiler and provides the information about deposits to the plant distributed control system for more efficient operation of the plant pendant tube cleaning and operating systems.
    • 用于检测和控制回收和动力锅炉中的悬挂管上的沉积物的系统包括一个或多个在约4或8.7微米的红外区域中操作的沉积物监测传感器,并且直接产生锅炉内部的图像,或者产生供给信号到 数据处理系统,用于实现用于操作锅炉的分布式控制系统以更有效地操作所述锅炉的信息。 数据处理系统包括其中捕获由视频数据输入形成的2-D图像的图像预处理电路,并且包括用于对所述视频输入进行噪声滤波的低通滤波器。 它还包括用于阵列补偿的图像补偿系统,以校正像素变化和死细胞等,并且用于校正几何失真。 图像分割模块从图像预处理电路接收清洁的图像,用于将回收锅炉内部的图像分离为背景,垂直管和沉积。 它还实现了灰度/纹理的阈值化/聚类,并使形态学变换到平滑区域,并通过连接的组件识别区域。 图像理解单元接收从图像分割模块发送的分割图像,并将导出的区域匹配到所述锅炉的3-D模型。 它产生三维结构,沉积在锅炉的垂直管上,并提供关于沉积物的信息到工厂分布式控制系统,以更有效地操作植物吊灯清洁和操作系统。