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41. 发明授权

US5812266A Non-contact position sensor 失效
公开(公告)号：US5812266A
公开(公告)日：1998-09-22
申请号：US573170
申请日：1995-12-15
申请人： Michael Hercher
发明人： Michael Hercher
IPC分类号： G01B11/03 , G01D5/26 , G01D5/28 , G01D5/30 , G11B5/48 , G11B5/55 , G11B5/596 , G11B21/08 , G01B11/14
CPC分类号： G11B5/59677 , G01D5/26 , G01D5/28 , G01D5/285 , G01D5/305 , G11B21/083 , G11B21/086 , G11B5/4826 , G11B5/5534
摘要： A device for measuring the displacement of a movable object includes a stationary light source that produces an incident light beam. A target feature, attached to, or integral with, the object, reflects the incident light beam. A stationary photodetector, spaced from the object, receives the reflected light beam and, in response thereto, produces an electric signal having a characteristic (such as amplituded) which is proportional to a received location on the photodetector of the reflected light beam and which represents a position of the object. An imaging lens receives the reflected light beam and focusses an image of the light source on the photodetector. The target feature includes a curved surface that reflects the light beam such that a small, point-like or line-like image of the light source is focussed on the photodetector. The displacement sensor device is particularly useful in a disk drive servo system application.

42. 发明授权

US5698847A Optical-modulation-type sensor and process instrumentation apparatus employing the same 失效
标题翻译：光调制型传感器和采用该传感器的处理仪表装置
公开(公告)号：US5698847A
公开(公告)日：1997-12-16
申请号：US579246
申请日：1995-12-27
申请人： Masaki Yoda , Tatsuyuki Maekawa , Shigeru Suzuki , Nobuaki Ohno
发明人： Masaki Yoda , Tatsuyuki Maekawa , Shigeru Suzuki , Nobuaki Ohno
IPC分类号： G01D5/26 , G01D5/353 , G01K7/32 , G01L1/24 , G01L11/02 , G02F1/01 , G02F1/03
CPC分类号： G01L11/02 , G01D5/26 , G01K7/32 , G01L1/24
摘要： An optical-modulation-type sensor comprises an input condenser lens for collecting light from a light source, a polarizer for linearly polarizing the light from the input condenser lens, a light-transmissive piezo-oscillator which is provided with an oscillator circuit and to which the linearly polarized light is introduced from the polarizer, an analyzer for linearly polarizing the light from the piezo-oscillator, and an output condenser lens for converging the linearly polarized light from the analyzer. A process instrumentation apparatus using the sensor of the structure described above further comprises an optical fiber for transmitting the light from the light source to the optical-modulation-type sensor, a photoelectric converter operatively connected to an output side of the optical-modulation-type sensor for converting to an electrical signal the transmitted light which is intensity modulated with the oscillation frequency of the piezo-oscillator, and a signal processing unit for acquiring a process quantity based on the frequency of an output signal from the photoelectric converter.
摘要翻译：光调制型传感器包括用于收集来自光源的光的输入聚光透镜，用于使来自输入聚光透镜的光线性偏振的偏振器，设置有振荡电路的透光压电振荡器，线偏振光从偏振器引入，用于使来自压电振荡器的光线性偏振的分析器和用于会聚来自分析器的线偏振光的输出聚光透镜。使用上述结构的传感器的处理仪表装置还包括用于将来自光源的光传输到光调制型传感器的光纤，可操作地连接到光调制型传感器的输出侧的光电转换器传感器，用于将用压电振荡器的振荡频率强度调制的透射光转换为电信号;以及信号处理单元，用于基于来自光电转换器的输出信号的频率来获取处理量。

43. 发明授权

US5521394A Compact displacement detecting system with optical integrated circuit and connector in-line with optical axis 失效
标题翻译：紧凑型位移检测系统，具有光学集成电路和连接器与光轴
公开(公告)号：US5521394A
公开(公告)日：1996-05-28
申请号：US319104
申请日：1994-10-06
申请人： Noriko Nakanishi , Hidehiro Kume
发明人： Noriko Nakanishi , Hidehiro Kume
IPC分类号： G01B11/00 , G01B11/02 , G01C3/06 , G01D5/26 , G01N21/86
CPC分类号： G01D5/26 , G01B11/026
摘要： A displacement detecting system comprises an optical detector which includes a one-chip optical IC having a laser light source, light receiving elements for generating, in response to laser light reflected by a surface to be measured, a focus error signal indicative of a deviation of a distance between the surface and an objective lens from a focal length thereof, and a prism.
摘要翻译：位移检测系统包括光检测器，其包括具有激光光源的单芯片光IC，响应于待测表面反射的激光产生指示偏差的聚焦误差信号的光接收元件表面和物镜之间的距离其焦距和棱镜的距离。

44. 发明授权

US5332539A Non-contact linear position transducer for an injection molding machine and method of using 失效
标题翻译：注射成型机的非接触线性位置传感器及其使用方法
公开(公告)号：US5332539A
公开(公告)日：1994-07-26
申请号：US37758
申请日：1993-03-26
申请人： Ronald M. Sparer
发明人： Ronald M. Sparer
IPC分类号： B29C45/80 , G01D5/20 , G01D5/26 , B29C45/04
CPC分类号： B29C45/80 , G01D5/20 , G01D5/26
摘要： An apparatus for indirectly measuring relatively long, linear distances associated with the operation of an injection molding machine. In particular, the method and apparatus of the present invention can be used to determine the distance between two machine components or systems that are capable of relative (linear) movement. The apparatus includes a rigid bar that extends over the distance traversed by the components of interest, the bar being oriented at a slight angle relative to the line of movement. Immediately adjacent the bar is a sensing element capable of accurately determining the relatively short distance between the sensor and the bar. It is contemplated that the bar would be associated with one of the machine components and the sensor connected to the other. Given that there is only linear movement between the components, the distance between the sensor and the bar will be proportional to the distance between the two machine components. A simple calculation based on the angle of the bar and the distance from the sensor to the bar determines the corresponding separation of the two parts.
摘要翻译：一种用于间接测量与注射成型机的操作相关联的相对长的线性距离的装置。特别地，本发明的方法和装置可用于确定能够进行相对（线性）移动的两个机器部件或系统之间的距离。该装置包括一个刚性杆，该杆在由感兴趣的部件穿过的距离上延伸，杆相对于运动线以小角度定向。紧邻杆的是感测元件，其能够精确地确定传感器和杆之间的相对短的距离。可以设想，杆将与机器部件中的一个和连接到另一个的传感器相关联。假设在组件之间只有线性运动，传感器和杆之间的距离将与两个机器部件之间的距离成正比。基于杆的角度和从传感器到杆的距离的简单计算确定了两部分的相应分离。

45. 发明授权

US5326028A System for detecting indoor conditions and air conditioner incorporating same 失效
标题翻译：用于检测室内条件的系统和包含其的空调
公开(公告)号：US5326028A
公开(公告)日：1994-07-05
申请号：US111068
申请日：1993-08-24
申请人： Hiroshi Kano , Masakazu Asano
发明人： Hiroshi Kano , Masakazu Asano
IPC分类号： F24F1/00 , F24F11/00 , G01D5/26 , G08B13/187 , F24F7/00 , G01B11/28
CPC分类号： G01D5/26 , F24F11/0034 , G08B13/187 , F24F1/00 , F24F2011/0035 , F24F2011/0063
摘要： A system to be installed within a room for detecting indoor condition data such as the interior area of the room and the number and position of occupants therein comprises an LED array for emitting a spotlight to form a multiplicity of light spots one by one successively as dispersed on the interior surface of the room at approximately equal spacings. The spotlight is projected from the array on the interior surface and concentrated on a one-dimensional PSD upon reflection. The indoor condition data is calculated by using triangulation for the optical system and output currents of the PSD as input signals.
摘要翻译：安装在房间内用于检测房间内部的室内状态数据的房屋内的系统以及其中的居民的数量和位置包括：LED阵列，用于发射聚光灯，以分散形式依次形成多个光点在房间的内表面上大致相等的间距。聚光灯从内部表面上的阵列投影，并在反射时集中在一维PSD上。通过使用光学系统的三角测量和PSD的输出电流作为输入信号来计算室内条件数据。

46. 发明授权

US5204518A Background light compensation for sensor array 失效
标题翻译：传感器阵列的背景光补偿
公开(公告)号：US5204518A
公开(公告)日：1993-04-20
申请号：US812985
申请日：1991-12-24
申请人： Shi-Tron Lin , Steven A. Buhler
发明人： Shi-Tron Lin , Steven A. Buhler
IPC分类号： G01D5/26 , H03M1/28
CPC分类号： G01D5/26 , H03M1/285
摘要： A position detector for a scanning beam comprising a plurality of rows of spaced apart sensors. Each row of sensors includes a plurality of logic zero sensors and a plurality of logic one sensors which are arranged in alternating logic order. Each row is arranged such that it is symmetrical about its center. Equal areas of logic zero sensors on each side of the center are equal distances away from the center and equal areas of logic one sensors on each side of the center are equal distances away from the center to substantially cancel out any background light effects on the sensors.
摘要翻译：一种用于扫描光束的位置检测器，包括多行间隔开的传感器。每行传感器包括多个逻辑零传感器和以交替逻辑顺序布置的多个逻辑一个传感器。每排布置成使其相对于其中心对称。中心每侧的逻辑零传感器的相等区域距离中心距离相等，距离相同的逻辑区域，中心两侧的一个传感器距离中心距离相等，从而基本上消除了对传感器的任何背景光影响。

47. 发明授权

US5173602A Binary position sensitive detector with multiple rows of alternating types of photocells 失效
标题翻译：具有多行交替类型的光电管的二进制位置敏感检测器
公开(公告)号：US5173602A
公开(公告)日：1992-12-22
申请号：US813173
申请日：1991-12-24
申请人： Shi-Tron Lin
发明人： Shi-Tron Lin
IPC分类号： G01B11/00 , G01D5/26 , G01D5/347
CPC分类号： G01D5/26 , G01D5/34792
摘要： The present invention consists of a photocell array to determine the cross-scan position of a laser beam. The array consists of multiple rows of elongated photocells oriented perpendicular to the main scan direction of the laser beam with each row of photocells representing one bit of data. Furthermore, each row consists of alternating types of photocells, one type representing a logic 1 and the other type representing a logic 0. As the laser beam crosses this array, it energizes certain photocells on each row such that its output is a binary number that identifies the position at which the laser beam crosses the array. To improve the accuracy of the binary output, the pitch between the photocells of each row should not be reduced to less than 1/4 of the width of the laser beam. If greater accuracy is needed, the photocells should be offset while keeping the pitch between the photocells constant at a pitch not less than 1/4 of the width of the laser beam.

48. 发明授权

US5149980A Substrate advance measurement system using cross-correlation of light sensor array signals 失效
标题翻译：使用光传感器阵列信号的互相关的基板预测量系统
公开(公告)号：US5149980A
公开(公告)日：1992-09-22
申请号：US786495
申请日：1991-11-01
申请人： John Ertel , William D. Holland , Kent D. Vincent , Rueiming Jamp , Richard R. Baldwin
发明人： John Ertel , William D. Holland , Kent D. Vincent , Rueiming Jamp , Richard R. Baldwin
IPC分类号： B41J11/42 , B41J29/44 , B65H7/14 , G01C3/06 , G01D5/26 , G01S17/08 , H04N1/047 , H04N1/12
CPC分类号： G01S17/08 , G01D5/26 , H04N1/047 , H04N1/12 , H04N2201/04712 , H04N2201/04729
摘要： Method and apparatus for determining the distance a sheet of paper, or other reflective or transmissive substrate material with a suitable, approximately planar surface, has moved in a given direction. The substrate is illuminated by reflection or transmission of light at non-normal incidence, and a linear array of N uniformly spaced light sensors is provide to receive and sense light issuing from the illuminated substrate. This produces a first or reference array of light signal strengths s.sub.1 (k) (k=1,2, . . . , N). The substrate is then moved in the given direction, and a second array of signal strengths s.sub.2 (k) (k=1, 2, . . . , N) is produced. A cross-correlation function C(K), formed from consecutive portions of the first and second light signal strength arrays, is then examined to determine the distance the substrate has moved in the given direction. A maximum in the cross-correlation function C(K) at K=K.sub.0 corresponds to displacement of the substrate in the given direction by a distance approximately equal to (MF)(K.sub.0 -i)d, where i is selected positive integer determined by the initial position of the substrate, the distance d is determined from the known spacing of the light sensors, and MF is the system optical magnification factor. The cross-correlation function can be computed with uniform or non-uniform weights in the sum. This one-dimensional approach is extended to determining the vector of two-dimensional movement of the substrate, including translation, rotation and scaling, in a two-dimensional plane.

49. 发明授权

US5142135A Optical sensor projecting an image of the sensor for alignment purposes 失效
标题翻译：光学传感器投影传感器用于对准目的的图像
公开(公告)号：US5142135A
公开(公告)日：1992-08-25
申请号：US600340
申请日：1990-10-19
申请人： David W. Farchmin
发明人： David W. Farchmin
IPC分类号： G01B11/00 , G01D5/26 , G05D3/12
CPC分类号： G01B11/00 , G01D5/26
摘要： An alignment system for an optical sensor projects an alignment image coincident with the field-of-view of the sensor. The alignment image is produced by illuminating a non-specular reflecting surface co-planar with the photosensitive element of the sensor and using the same lens as that which receives the image of the imaged object to project that image on the imaged object for alignment purposes. The light source may be turned off for normal use of the optical sensor.
摘要翻译：用于光学传感器的对准系统投射与传感器的视场重合的对准图像。通过照射与传感器的感光元件共面的非镜面反射表面并且使用与接收成像对象的图像相同的透镜来投影该成像对象上的该图像以进行对准目的而产生对准图像。可以关闭光源以正常使用光学传感器。

50. 发明授权

US5141330A Thin-film quadrant temperature sensor for use in a system to control the alignment of a CO.sub.2 laser beam 失效
标题翻译：用于系统中的薄膜象限温度传感器，用于控制CO2激光束的对准
公开(公告)号：US5141330A
公开(公告)日：1992-08-25
申请号：US650689
申请日：1991-02-05
申请人： Otto J. Gregory , Kenneth A. Burbank
发明人： Otto J. Gregory , Kenneth A. Burbank
IPC分类号： G01D5/26 , G01J1/42 , G01J5/12 , G01K7/02
CPC分类号： G01J1/4257 , G01D5/26 , G01K7/02 , G01J5/12
摘要： A thermoconductive sensor for aligning a laser beam which includes a substrate, a dielectric layer disposed on the substrate to provide electrical insulation, an insulating layer interposed between the dielectric layer and the substrate and a reflective/refractive material embedded in the layer to reflect heat from the layer and to conduct heat through a plurality of fingers. A plurality of serially connected thermocouples communicate with the fingers to provide an output of the changes and the thermoconductivity to then realign the laser beam.
摘要翻译：一种用于对准包括衬底的激光束的导热传感器，设置在衬底上以提供电绝缘的介电层，介于介电层和衬底之间的绝缘层和嵌入该层中的反射/折射材料以反射来自并且通过多个手指传导热量。多个串联连接的热电偶与手指连通以提供变化和导热性的输出，从而重新对准激光束。

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