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1. 发明授权

US5386484A Optical fiber type polarizer 失效
标题翻译：光纤型偏振器
公开(公告)号：US5386484A
公开(公告)日：1995-01-31
申请号：US118809
申请日：1993-09-09
申请人： Akihiro Ooka , Kenji Kawamura , Yozo Nishiura , Katsuaki Itoh , Takaki Iwashita , Yasuhiko Nishi , Noritaka Kuroda , Hayato Hasegawa
发明人： Akihiro Ooka , Kenji Kawamura , Yozo Nishiura , Katsuaki Itoh , Takaki Iwashita , Yasuhiko Nishi , Noritaka Kuroda , Hayato Hasegawa
IPC分类号： G01C19/72 , G02B6/10 , G02B6/34 , G02B6/44 , G02B6/17
CPC分类号： G02B6/274 , G01C19/722 , G02B6/105 , G02B6/276 , G02B6/4457
摘要： An optical fiber type polarizer comprises a first optical fiber constituted by a birefringent optical fiber wound at a predetermined winding radius and having winding start and end fixed to each other by an adhesive, the first optical fiber having short extra portions respectively extending from the winding start and end, and the length of each of the short extra porions being at least as small as the predetermined winding radius. The optical fiber type polarizer further comprises a second optical fiber spliced to one of the short extra portions of the first optical fiber, and a third optical fiber spliced to the other of the short extra portions of the first optical fiber.
摘要翻译：一种光纤型偏振器包括：由双折射光纤构成的第一光纤，该双折射光纤以预定的绕组半径缠绕并且具有通过粘合剂彼此固定的卷绕开始和端部，所述第一光纤具有分别从卷绕开始延伸的多个额外部分并且结束，并且每个短的额外部分的长度至少与预定的绕组半径一样小。光纤型偏振器还包括接合到第一光纤的短额外部分之一的第二光纤，以及与第一光纤的短额外部分中的另一个接合的第三光纤。

2. 发明授权

US5444533A Fiber-optic gyroscope obtaining a signal from a perturbed light source 失效
标题翻译：光纤陀螺仪从扰动光源获得信号
公开(公告)号：US5444533A
公开(公告)日：1995-08-22
申请号：US114095
申请日：1993-08-31
申请人： Yozo Nishiura , Takaki Iwashita , Akihiro Ooka
发明人： Yozo Nishiura , Takaki Iwashita , Akihiro Ooka
IPC分类号： G02B6/00 , G01C19/72 , H01S3/07 , H01S3/083
CPC分类号： G01C19/721
摘要： Conventional fiber-optic gyroscopes were provided with an independent photodetector for detecting interfering beams. The existence of the independent photodetector required two beam dividing-and-combining devices for equalizing the experiences of the clockwise-spreading beams and the counterclockwise-spreading beams. Curtailment of an expensive beam dividing-and-combining device is desirable for reducing the cost of gyroscopes. This invention dispenses with the independent photodetector. Instead of the independent photodetector, the light source itself or the monitoring photodiode detects the interfering beams by the change of driving current, applied voltage or photocurrent. Elimination of the independent photodetector saves one beam dividing-and-combining device by equalizing the path of the progressing beams to the path of the regressing beams. Optimum light sources, interposition of polarizer, position of depolarizer and use of birefringent material as polarizer are explained.
摘要翻译：传统的光纤陀螺仪设有独立的光电检测器，用于检测干涉光束。独立光电检测器的存在需要两个光束分割和组合装置，用于均衡顺时针扩展光束和逆时针扩展光束的经验。昂贵的光束分割和组合装置的缩减对于降低陀螺仪的成本是期望的。本发明省去了独立的光电探测器。代替独立光电检测器，光源本身或监控光电二极管通过驱动电流，施加电压或光电流的变化来检测干扰光束。消除独立的光电探测器通过将前进光束的路径均衡到回归光束的路径来节省一个光束分割和合成装置。解释了最佳光源，偏振器的插入，去偏振器的位置以及双折射材料作为偏振器的用途。

3. 发明授权

US5245407A Fiber-optic gyroscope with depolarizers in a fiber coil located between a light source and a polarizer 失效
标题翻译：在光源和极化器之间的光纤线圈中具有分离器的光纤陀螺仪
公开(公告)号：US5245407A
公开(公告)日：1993-09-14
申请号：US748541
申请日：1991-08-22
申请人： Yozo Nishiura , Takaki Iwashita
发明人： Yozo Nishiura , Takaki Iwashita
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： A fiber-optic gyroscope having a depolarizer installed near the fiber coil and a polarizer disposed in the optical path before the light is divided in two partial lights to avoid the fluctuation of the light power passing reversely through the polarizer induced by the rotation of the polarization plane of the light. However, since the light emitting device emits a linearly polarized light, the light power first passing through the polarizer will fluctuate by the rotation of the polarization plane. This invention adds another depolarizer between the light emitting device and the polarizer in order to kill such a fluctuation.

4. 发明授权

US5371595A Fiber-optic gyroscope using single birefringent material for depolarizer 失效
标题翻译：光纤陀螺仪使用单双折射材料去极化器
公开(公告)号：US5371595A
公开(公告)日：1994-12-06
申请号：US27801
申请日：1993-03-08
申请人： Yozo Nishiura , Takaki Iwashita
发明人： Yozo Nishiura , Takaki Iwashita
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： A fiber-optic gyroscope having a depolarizer installed near the fiber coil and a polarizer disposed in the optical path before the light is divided in two partial lights to avoid the fluctuation of the light power passing reversely through the polarizer induced by the rotation of the polarization plane of the light. However, since the light emitting device emits a linearly polarized light, the light power first passing through the polarizer will fluctuate by the rotation of the polarization plane. This invention adds another depolarizer between the light emitting device and the polarizer in order to kill such a fluctuation.
摘要翻译：光纤陀螺仪具有安装在光纤线圈附近的消偏振器和偏振器，在光被分成两部分光之前设置在光路中，以避免由极化旋转引起的偏振器反射的光功率波动光的平面。然而，由于发光器件发射线偏振光，所以首先通过偏振器的光功率将通过偏振面的旋转而波动。本发明在发光器件和偏振器之间增加了另一个去偏振器，以消除这种波动。

5. 发明申请

US20080204007A1 Rotation detecting sensor 审中-公开
标题翻译：旋转检测传感器
公开(公告)号：US20080204007A1
公开(公告)日：2008-08-28
申请号：US12071739
申请日：2008-02-26
申请人： Kyungwoo Kim , Takaki Iwashita , Tadashi Hattori
发明人： Kyungwoo Kim , Takaki Iwashita , Tadashi Hattori
IPC分类号： G01B7/30 , B29C45/00
CPC分类号： G01P1/026 , G01D11/245 , G01D11/30
摘要： A wheel speed sensor includes a hall IC that outputs a signal representing a change of magnetic field generated by rotation of a detection object and that is simply covered with resin coating. In the process of molding the resin coating, a resin injection opening is positioned away from an end face of a sheath of a cable to be coated by a length no less than a minimum adhesion length for ensuring adhesion between the sheath and the resin coating. In addition, the holder and a cover of the detector are provided with waterproof protrusions extending along the entire peripheries of contact areas in which pressing pins are brought into contact with the holder and the cover. Accordingly, immersion of the detector is reliably prevented even when a void or the like occurs in the resin coating at a position near the injection opening.
摘要翻译：轮速传感器包括霍尔IC，其输出表示由检测对象的旋转产生的磁场变化的信号，并且仅仅被树脂涂层覆盖。在模制树脂涂层的过程中，将树脂注入口远离待涂覆的电缆的护套的端面设置在不小于最小粘合长度的长度上，以确保护套和树脂涂层之间的粘合。此外，保持器和检测器的盖设置有沿着压接销与保持器和盖接触的接触区域的整个周边延伸的防水突起。因此，即使在喷射口附近的位置处的树脂涂层中发生空隙等，也能够可靠地防止检测器的浸渍。

6. 发明授权

US06897647B2 Revolution detecting sensor with recessed guide 失效
标题翻译：带凹槽导轨的革命检测传感器
公开(公告)号：US06897647B2
公开(公告)日：2005-05-24
申请号：US10396817
申请日：2003-03-26
申请人： Takaki Iwashita
发明人： Takaki Iwashita
IPC分类号： G01D5/14 , G01D11/24 , G01P1/02 , G01P3/488 , G01B7/14 , G01R33/06
CPC分类号： G01P1/026 , G01D5/147 , G01D11/245 , G01P3/488
摘要： A revolution detecting sensor includes a Hall IC facing a detection target, a magnet positioned behind the Hall IC and applying a bias magnetic field, and a substrate provided with a detecting circuit. The revolution detecting sensor is configured such that a lead terminal from the Hall IC bypasses the magnet, to be guided to the substrate. In a magnet holder holding the magnet, a recessed guide guiding the lead terminal is formed, and a pressing member is provided. Thus, a tip end portion of the lead terminal can be held in a prescribed position, and an operation for attachment to the substrate can easily be performed.
摘要翻译：旋转检测传感器包括面向检测对象的霍尔IC，位于霍尔IC后面的磁体，施加偏置磁场，以及设置有检测电路的基板。旋转检测传感器被构造成使得来自霍尔IC的引线端子绕过磁体，被引导到基板。在保持磁体的磁体保持架中，形成引导引线端子的凹形引导件，并且设置有按压部件。因此，可以将引线端子的前端部保持在规定的位置，能够容易地进行与基板的连接的动作。

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