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1. 发明申请

US20080204707A1 Monitoring device for rotating body 失效
标题翻译：旋转体监测装置
公开(公告)号：US20080204707A1
公开(公告)日：2008-08-28
申请号：US12081675
申请日：2008-04-18
申请人： Yoha Hwang , Sang Bae Lee , Jong Min Lee
发明人： Yoha Hwang , Sang Bae Lee , Jong Min Lee
IPC分类号： G01L1/24
CPC分类号： G01B11/18 , G01M11/085
摘要： The present invention relates to a monitoring device for a rotating body, which can accurately measure signals from a fiber Bragg grating sensor provided on the rotating body by compensating a transmission loss variation and a distortion of the sensor signals. A rotation-side optical fiber has at least one deformation sensor at a portion thereof and a reference sensor at one end thereof. The sensors are made by forming a Bragg grating in the rotation-side optical fiber. A fixed-side optical fiber is mounted to the fixed body so as to be opposed to the one end of the rotation-side optical fiber. A signal processing unit detects a deformation of the rotating body by subtracting a signal corresponding to the light reflected from the reference sensor from a signal corresponding to the light reflected from the deformation sensor.
摘要翻译：本发明涉及一种用于旋转体的监测装置，其可以通过补偿传输损耗变化和传感器信号的失真来精确地测量设置在旋转体上的光纤布拉格光栅传感器的信号。旋转侧光纤在其一部分具有至少一个变形传感器，其一端具有基准传感器。传感器通过在旋转侧光纤中形成布拉格光栅而制成。固定侧光纤被安装到固定体上以与旋转侧光纤的一端相对。信号处理单元从对应于从变形传感器反射的光的信号中减去与从基准传感器反射的光相对应的信号来检测旋转体的变形。

2. 发明授权

US07495750B2 Monitoring device for rotating body 失效
标题翻译：旋转体监测装置
公开(公告)号：US07495750B2
公开(公告)日：2009-02-24
申请号：US12081675
申请日：2008-04-18
申请人： Yoha Hwang , Sang Bae Lee , Jong Min Lee
发明人： Yoha Hwang , Sang Bae Lee , Jong Min Lee
IPC分类号： G01B11/16
CPC分类号： G01B11/18 , G01M11/085
摘要： The present invention relates to a monitoring device for a rotating body, which can accurately measure signals from a fiber Bragg grating sensor provided on the rotating body by compensating a transmission loss variation and a distortion of the sensor signals. A rotation-side optical fiber has at least one deformation sensor at a portion thereof and a reference sensor at one end thereof. The sensors are made by forming a Bragg grating in the rotation-side optical fiber. A fixed-side optical fiber is mounted to the fixed body so as to be opposed to the one end of the rotation-side optical fiber. A signal processing unit detects a deformation of the rotating body by subtracting a signal corresponding to the light reflected from the reference sensor from a signal corresponding to the light reflected from the deformation sensor.
摘要翻译：本发明涉及一种用于旋转体的监测装置，其可以通过补偿传输损耗变化和传感器信号的失真来精确地测量设置在旋转体上的光纤布拉格光栅传感器的信号。旋转侧光纤在其一部分具有至少一个变形传感器，其一端具有基准传感器。传感器通过在旋转侧光纤中形成布拉格光栅而制成。固定侧光纤被安装到固定体上以与旋转侧光纤的一端相对。信号处理单元从对应于从变形传感器反射的光的信号中减去与从基准传感器反射的光相对应的信号来检测旋转体的变形。

3. 发明申请

US20110192827A1 Method Of Monitoring Machine Condition 有权
标题翻译：监控机器状况的方法
公开(公告)号：US20110192827A1
公开(公告)日：2011-08-11
申请号：US12859753
申请日：2010-08-19
申请人： Yoha Hwang , Jong Min Lee
发明人： Yoha Hwang , Jong Min Lee
IPC分类号： B23K9/10 , G06F17/10
CPC分类号： B23K9/0953 , B23K9/007
摘要： Various embodiments of a method for monitoring a machine condition are provided. An embodiment of the present invention provides a method of monitoring a machine condition, comprising the following steps: modeling a normal signal model performed by detecting a signal for monitoring condition of a normal machine and converting the detected signal to a normal signal model in time domain using a hidden Markov model (HMM) algorithm; calculating a probability value data of the monitoring signal at a subject machine performed by detecting a signal for monitoring condition of the subject machine in real-time and converting the detected signal to the probability value data relative to the normal state signal model using the HMM algorithm; and determining a section having deficiency where the probability value data of the monitoring signal at the subject machinery is not maintained constantly relative to the normal signal model.
摘要翻译：提供了用于监视机器状况的方法的各种实施例。本发明的实施例提供一种监视机器状况的方法，包括以下步骤：通过检测用于监视正常机器状态的信号进行模拟，并将检测到的信号转换为正常的时域信号模型使用隐马尔可夫模型（HMM）算法; 通过检测用于主机的状态的信号实时检测所执行的监视信号的概率值数据，并使用HMM算法将检测信号相对于正常状态信号模型转换为概率值数据 ; 并且确定具有缺陷的部分，其中在所述主题机器处的所述监视信号的概率值数据相对于所述正常信号模型不被恒定地维持。

4. 发明授权

US08426771B2 Method of monitoring machine condition 有权
标题翻译：监测机器状况的方法
公开(公告)号：US08426771B2
公开(公告)日：2013-04-23
申请号：US12859753
申请日：2010-08-19
申请人： Yoha Hwang , Jong Min Lee
发明人： Yoha Hwang , Jong Min Lee
IPC分类号： B23K9/10
CPC分类号： B23K9/0953 , B23K9/007
摘要： Various embodiments of a method for monitoring a machine condition are provided. An embodiment of the present invention provides a method of monitoring a machine condition, comprising the following steps: modeling a normal signal model performed by detecting a signal for monitoring condition of a normal machine and converting the detected signal to a normal signal model in time domain using a hidden Markov model (HMM) algorithm; calculating a probability value data of the monitoring signal at a subject machine performed by detecting a signal for monitoring condition of the subject machine in real-time and converting the detected signal to the probability value data relative to the normal state signal model using the HMM algorithm; and determining a section having deficiency where the probability value data of the monitoring signal at the subject machinery is not maintained constantly relative to the normal signal model.
摘要翻译：提供了用于监视机器状况的方法的各种实施例。本发明的实施例提供一种监视机器状况的方法，包括以下步骤：通过检测用于监视正常机器状态的信号进行模拟，并将检测到的信号转换为正常的时域信号模型使用隐马尔可夫模型（HMM）算法; 通过检测用于主机的状态的信号实时检测所执行的监视信号的概率值数据，并使用HMM算法将检测信号相对于正常状态信号模型转换为概率值数据 ; 并且确定具有缺陷的部分，其中在所述主题机器处的所述监视信号的概率值数据相对于所述正常信号模型不被恒定地维持。

5. 发明申请

US20050224770A1 Flexible screw type height control device 审中-公开
标题翻译：柔性螺杆式高度控制装置
公开(公告)号：US20050224770A1
公开(公告)日：2005-10-13
申请号：US10780966
申请日：2004-02-17
申请人： Munsang Kim , Yoha Hwang , Seung-Jong Kim , Jong Min Lee , Sung-Kee Park , Jong-Suk Choi
发明人： Munsang Kim , Yoha Hwang , Seung-Jong Kim , Jong Min Lee , Sung-Kee Park , Jong-Suk Choi
IPC分类号： F16H25/18 , F16H25/24
CPC分类号： F16H25/2427
摘要： A flexible screw type height control device comprises a housing, a servomotor mounted in the housing, a driving gear which is rotated by the servomotor, a driven gear which is provided with a spiral groove at a central portion thereof and is tooth-engaged with the driving gear, a flexible screw member which passes axially through the spiral groove of the driven gear and moves linearly upward and downward by the servomotor, and a telescopic unit including a plurality of sliding members which are slidably coupled to each other and cooperate with the flexible screw member. The flexible screw member is a coil spring. A first sliding member is slidably disposed in the housing. One end of the flexible screw member is extended outside the housing, and the other end is fixed to a last sliding member. Each sliding member is formed as an open-ended pipe and a cross-sectional area of the sliding members decreases from the first sliding member to the last sliding member.
摘要翻译：柔性螺杆式高度控制装置包括壳体，安装在壳体中的伺服电动机，由伺服电动机旋转的驱动齿轮;从动齿轮，其在其中心部分设有螺旋槽，并与其啮合驱动齿轮，通过轴向通过从动齿轮的螺旋槽并由伺服电机线性地向上和向下移动的柔性螺钉构件，以及包括多个滑动构件的伸缩单元，滑动构件彼此可滑动地联接并与柔性螺丝部件。柔性螺杆构件是螺旋弹簧。第一滑动构件可滑动地设置在壳体中。柔性螺钉构件的一端延伸到壳体外部，另一端固定在最后的滑动构件上。每个滑动构件形成为开口管，并且滑动构件的横截面积从第一滑动构件减小到最后滑动构件。

6. 发明申请

US20050253051A1 Monitoring device for rotating body 审中-公开
标题翻译：旋转体监测装置
公开(公告)号：US20050253051A1
公开(公告)日：2005-11-17
申请号：US11022017
申请日：2004-12-23
申请人： Yoha Hwang , Sang Lee , Jong Lee
发明人： Yoha Hwang , Sang Lee , Jong Lee
IPC分类号： G01B11/16 , G01D5/353 , G01J5/08 , G01L1/24
CPC分类号： G01B11/165 , G01D5/35303 , G01L1/246 , G02B6/3604
摘要： A fiber Bragg grating (FBG) sensor is mounted to a rotating body, which is supported by a rotating shaft mounted rotatably with respect to a fixed element. The FBG sensor extends along the rotating shaft, one end of which is disposed at the center of the end of the rotating shaft. An optical fiber is mounted to the fixed element, one end of which is disposed opposite to the end of the FBG sensor, apart from the FBG sensor. Light emitted from a broadband light source passes through the optical fiber and is transmitted to the FBG sensor across a gap between the optical fiber and the FBG sensor. The FBG sensor reflects light with frequencies corresponding to deformation of the rotating body. A data processing unit receives the reflected light and calculates the deformation of the rotating body based thereupon.
摘要翻译：光纤布拉格光栅（FBG）传感器安装在旋转体上，旋转体由相对于固定元件可旋转地安装的旋转轴支撑。 FBG传感器沿着旋转轴延伸，其一端设置在旋转轴的端部的中心。光纤安装在固定元件上，其一端与FBG传感器相对设置，与FBG传感器的端部相对。从宽带光源发射的光穿过光纤，并通过光纤和FBG传感器之间的间隙传输到FBG传感器。 FBG传感器反射具有对应于旋转体的变形的频率的光。数据处理单元接收反射光并据此计算旋转体的变形。

7. 发明授权

US06633646B1 Method and apparatus for controlling exhaust noise 失效
标题翻译：用于控制排气噪声的方法和装置
公开(公告)号：US06633646B1
公开(公告)日：2003-10-14
申请号：US09604084
申请日：2000-06-27
申请人： Yoha Hwang
发明人： Yoha Hwang
IPC分类号： H03B2900
CPC分类号： G10K11/175
摘要： The present invention relates to noise reduction technology for controlling exhaust noise in internal combustion engines such as an automobile engine and/or noise in a duct of an air delivery system such as air conditioning systems, and more particularly, to an apparatus and a method for controlling exhaust noise in an internal combustion engine or noise in a duct of an air delivery system using a conduit bypass pipe having variable or fixed lengths and dual mufflers.
摘要翻译：本发明涉及用于控制诸如汽车发动机的内燃机中的排气噪声的噪音降低技术和/或诸如空调系统之类的空气输送系统的管道中的噪声，更具体地，涉及一种用于使用具有可变或固定长度的管道旁通管道和双消声器来控制内燃机中的排气噪声或空气输送系统的管道中的噪声。

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