公开(公告)号：US5852793A

公开(公告)日：1998-12-22

申请号：US800812

申请日：1997-02-18

Applicant: David B. Board ,  Harold Cates ,  Eric Rawlings

Inventor： David B. Board ,  Harold Cates ,  Eric Rawlings

IPC: G01H1/00 ,  G06F19/00

CPC classification number: G01M13/028 ,  F16C19/527 ,  G01H1/003 ,  G01M13/045

Abstract: For automatically predicting machine failure a transducer sensor, such as piezoelectric crystal, is applied to a machine for sensing machine motion and structure-borne sound, including vibration friction, and shock waves. The structure-borne sound and motion sensed is converted to electrical signals which are filtered to leave only the friction and shock waves, which waves are processed, as by detecting the envelope and integrating beneath the envelope, resulting in a measure of friction and shock wave energy, i.e., stress wave energy. This measure is computed and processed for producing fault progression displays for periodic and aperiodic damage. This is accomplished in a personal computer, menu-driven environment.

Abstract translation: 为了自动预测机器故障，将诸如压电晶体的传感器传感器应用于用于感测机器运动和结构声音的机器，包括振动摩擦和冲击波。 被传感的结构声音和运动被转换为电信号，这些信号被过滤以仅留下摩擦和冲击波，这些波被处理，如通过检测包络并整合在包络之下，导致摩擦和冲击波的测量 能量，即应力波能量。 计算和处理此措施以产生周期性和非周期性损伤的故障进展显示。 这是在个人电脑，菜单驱动的环境中实现的。

公开(公告)号：US20130116544A1

公开(公告)日：2013-05-09

申请号：US13810903

申请日：2011-07-12

Applicant: Eduardo Rey ,  Harold Cates

Inventor： Eduardo Rey ,  Harold Cates

IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/113 ,  A61B5/055

CPC classification number: A61B5/0205 ,  A61B5/0004 ,  A61B5/0059 ,  A61B5/0077 ,  A61B5/021 ,  A61B5/055 ,  A61B5/1135 ,  A61B5/6831 ,  A61B5/7217 ,  A61B5/7225 ,  A61B5/725 ,  A61B5/7285 ,  A61B5/7289 ,  G01R33/28 ,  G01R33/5673

Abstract: Apparatus and methods provide a physiological status sensing device (40) for sensing a physiological status of a patient (4) and minimizing an amount of interference (78) generated during a resonance (MR) scan by a magnetic resonance (MR) system (8). The device (40) includes a first, active sensor (64) located to sense the physiological status and experience MR scan related interference and to generate a first signal (80) having a physiological status component (76) and an interference component (78). A second non-active sensor (70) is located closely adjacent to the first sensor (64) to experience substantially the same MR scan related interference (78) as the first sensor (64) and generate a second signal (82) having only the interference component (78). A circuit or processor (56, 84, 110, 116) subtractively combines the first (80) and second signals (82) to cancel the interference component (78).

Abstract translation: 设备和方法提供用于感测患者（4）的生理状态并使由磁共振（MR）系统（8）在共振（MR）扫描期间产生的干扰量（78））最小化的生理状态感测装置（40） ）。 设备（40）包括位于感测生理状态并经历MR扫描相关干扰并且产生具有生理状态分量（76）和干扰分量（78）的第一信号（80）的第一有源传感器（64） 。 第二非活动传感器（70）位于第一传感器（64）附近，以体验与第一传感器（64）基本上相同的MR扫描相关的干扰（78），并产生仅具有 干扰分量（78）。 电路或处理器（56,84,110,116）减法地组合第一（80）和第二信号（82）以消除干扰分量（78）。