专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US06404504B2 Method and apparatus for measuring flying height of the slider and in-situ monitoring a slider-disk interface 失效
标题翻译：用于测量滑块的飞行高度并原位监测滑块 - 磁盘接口的方法和装置
公开(公告)号：US06404504B2
公开(公告)日：2002-06-11
申请号：US09951724
申请日：2001-09-14
申请人： Bo Liu , Yaolong Zhu , Teck Seng Low
发明人： Bo Liu , Yaolong Zhu , Teck Seng Low
IPC分类号： G01B1102
CPC分类号： G01B11/14 , G01B11/168
摘要： A method and apparatus for measuring the flying height of a slider above a disk surface and in-situ monitoring the slider disk interface comprising the steps of: providing a beam of light; providing a slider disk interface comprising a disk having a substantially transparent substrate and a thin film layer, a slider for carrying a read/write element, the slider having a reflective surface; and an air bearing having a thickness d3 for supporting the slider above the disk; directing the beam of light to the slider disk interface through the disk, the thin film layer, the air bearing and then to the reflective surface of the slider; and measuring one of the intensity and phase information of the light reflected from the slider disk interface to provide an indication of the thickness d3 of the air bearing and/or of the thin film layer.
摘要翻译：一种用于测量滑块在盘表面上方的飞行高度并原位监测滑动盘接口的方法和装置，包括以下步骤：提供光束; 提供一种滑动盘接口，其包括具有基本上透明的基板和薄膜层的盘，用于承载读/写元件的滑块，所述滑块具有反射表面; 以及具有用于在盘上方支撑滑块的厚度d3的空气轴承; 通过盘，薄膜层，空气轴承，然后到滑块的反射表面将光束引导到滑块盘接口; 并且测量从滑动盘接口反射的光的强度和相位信息之一，以提供空气轴承和/或薄膜层的厚度d3的指示。

82. 发明授权

US5694217A Interferometer for testing forms of surface and stress and strain 失效
标题翻译：用于测试表面和应力和应变形式的干涉仪
公开(公告)号：US5694217A
公开(公告)日：1997-12-02
申请号：US614939
申请日：1996-03-11
申请人： Masatoshi Hizuka
发明人： Masatoshi Hizuka
IPC分类号： G01B9/02 , G01B11/16 , G02B26/00
CPC分类号： G01B11/161 , G01B11/168 , G01B9/02024 , G01L1/24 , G01L5/0047 , G01B2290/70
摘要： A .lambda./4 plate is inserted into and retracted from an optical path of polarized light, thereby making it possible to select whether a noise component due to the stress strain within a test object is to be presented in fringes or not. As an operator operates an operation mechanism for a .lambda./4 plate (4), the .lambda./4 plate (4) is inserted into the optical path when a laser beam (2) should be turned into circularly polarized light, whereas the .lambda./4 plate (4) is retracted out of the optical path when the laser beam (2) should be turned into linearly polarized light.
摘要翻译：将λ/ 4板插入到偏振光的光路中并从其中缩回，从而可以选择是否以条纹呈现由于测试对象内的应力应变引起的噪声分量。作为操作者操作λ/ 4板（4）的操作机构，当激光束（2）应变成圆偏振光时，λ/ 4板（4）插入到光路中，而λ/ 当激光束（2）变为直线偏振光时，4板（4）从光路中退出。

83. 发明授权

US5137353A Angular displacement measuring device 失效
标题翻译：角位移测量装置
公开(公告)号：US5137353A
公开(公告)日：1992-08-11
申请号：US774490
申请日：1991-10-10
申请人： H. Lee B. Seegmiller
发明人： H. Lee B. Seegmiller
IPC分类号： G01B11/16 , G01M9/06
CPC分类号： G01M9/06 , G01B11/168
摘要： A system for measuring the angular displacement of a point of interest on a structure, such as aircraft model within a wind tunnel, includes a source of polarized light located at the point of interest. A remote detector arrangement detects the orientation of the plane of the polarized light received from the source and compares this orientation with the initial orientation to determine the amount or rate of angular displacement of the point of interest. The detector arrangement comprises a rotating polarizing filter and a dual filter and light detector unit. The latter unit comprises an inner aligned filter and photodetector assembly which is disposed relative to the periphery of the polarizer so as to receive polarized light passing the polarizing filter and an outer aligned filter and photodetector assembly which recives the polarized light directly, i.e., without passing through the polarizing filter. The purpose of the unit is to compensate for the effects of dust, fog and the like. A polarization preserving optical fiber conducts polarized light from a remote laser source to the point of interest.
摘要翻译：用于测量诸如风洞内的飞行器模型的结构上的兴趣点的角位移的系统包括位于感兴趣点处的偏振光源。远程检测器装置检测从源接收的偏振光的平面的取向，并将该取向与初始取向进行比较，以确定感兴趣点的角位移量或速率。检测器装置包括旋转偏振滤光器和双滤光器和光检测器单元。后一单元包括内部对准的滤光器和光电检测器组件，其相对于偏振器的周边设置，以便接收通过偏振滤光器的偏振光和外部对准的滤光器和光电检测器组件，其直接接收偏振光，即不经过通过偏振滤光片。该单元的目的是补偿灰尘，雾等的影响。偏振保留光纤将来自远程激光源的偏振光传导到感兴趣点。

84. 发明授权

US4688934A Rotating polarizer angle sensing system 失效
标题翻译：旋转偏光片角度感应系统
公开(公告)号：US4688934A
公开(公告)日：1987-08-25
申请号：US863654
申请日：1986-05-15
申请人： Larry T. Clark
发明人： Larry T. Clark
IPC分类号： G01B11/16
CPC分类号： G01B11/168
摘要： A system for measuring aeroelastic deformation of an aircraft wing in flight or in a wind tunnel utilizing light from a linearly polarized light source (101). The light is transmitted through modulating elements (104, 105) to provide a carrier beam, and a small portion of the beam is reflected through a linear polarizer (107) into a photo-detector (108) for utilization as a reference electrical signal (208). The remainder of the beam is reflected back from a retro-reflector target (700) located on the wing into another photo-detector (114) to provide the target electrical signal (209). The two amplified electrical signals are compared in a phase detector (FIG. 3) for providing an angle measurement output signal E.sub.0.
摘要翻译：一种用于利用来自线偏振光源（101）的光测量飞行中或在风洞中的飞机机翼的气动弹性变形的系统。光通过调制元件（104,105）传输以提供载波束，并且光束的一小部分通过线性偏振器（107）反射成光检测器（108）以用作参考电信号（ 208）。光束的剩余部分从位于机翼上的后向反射器靶（700）反射回到另一光电检测器（114）中以提供目标电信号（209）。两个放大的电信号在相位检测器（图3）中进行比较，以提供角度测量输出信号E0。

85. 发明授权

US4263810A Angular deflection sensing apparatus for load, force, and other types of measurements 失效
标题翻译：用于负载，力和其他类型测量的角度偏转感测装置
公开(公告)号：US4263810A
公开(公告)日：1981-04-28
申请号：US884557
申请日：1978-03-08
申请人： Hong-Yee Chiu
发明人： Hong-Yee Chiu
IPC分类号： G01B11/16 , G01G3/12 , G01G23/36
CPC分类号： G01B11/168 , G01G23/361 , G01G3/12
摘要： A method and apparatus of measurement of angular deformation of a body, and in particular, a method and apparatus of load or force sensing are disclosed. Chief applications are found in electronic weighing and related devices. Deformation of a body in the form of angular deflection, or a deformation that can be transformed into angular deflection by mechanical or other means, changes the angle between the polarization axes of a pair of light polarizers, thus changing the intensity of light that is transmitted through the pair of polarizers. A photodetector converts the transmitted light into an electric signal. This signal contains information regarding the amount of deformation of the body and may be used in its analog form to operate a voltmeter to give a visual readout, or converted into a digital form for activating a visual digital display, or for inputing into a digital data processing device. A specially designed feedback-stabilized light source produces an output whose D.C. level stays constant regardless of variations in certain of the properties of the photodetectors and the light source.
摘要翻译：公开了一种测量身体的角变形的方法和装置，特别是负载或力感测的方法和装置。主要应用于电子衡器及相关设备。以角度偏转的形式的身体变形，或通过机械或其他方式变形成角度偏转的变形，改变一对光偏振器的偏振轴之间的角度，从而改变被传输的光的强度通过一对偏光器。光电检测器将透射光转换成电信号。该信号包含关于身体的变形量的信息，并且可以以其模拟形式用于操作电压表以给出视觉读数，或者转换成用于激活视觉数字显示的数字形式或用于输入数字数据处理装置。特别设计的反馈稳定光源产生直流电平保持恒定的输出，而与光电检测器和光源的某些特性的变化无关。

86. 发明授权

US3468610A Schlieren and strain birefringence system 失效
标题翻译： SCHLIENEN和STRAIN BIREFRINGENCE系统
公开(公告)号：US3468610A
公开(公告)日：1969-09-23
申请号：US3468610D
申请日：1966-05-10
申请人： MUFFOLETTO CARL V
发明人： MUFFOLETTO CARL VERNE
IPC分类号： G01B11/16 , G01N21/23 , G02B27/54 , G01N21/46 , G01N1/10
CPC分类号： G01B11/18 , G01B11/168 , G01N21/23 , G02B27/54

87. 发明授权

US3218912A Polariscope for taking and printing photographs of stress trajectories and shear flow 失效
标题翻译：用于拍摄和打印应力轨迹和剪切流动照片的偏光镜
公开(公告)号：US3218912A
公开(公告)日：1965-11-23
申请号：US2278760
申请日：1960-04-18
申请人： TADASHI MINOURA , TOKUSABURO KOMAI
发明人： TADASHI MINOURA , TOKUSABURO KOMAI
IPC分类号： G01B11/16
CPC分类号： G01B11/168

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式