公开(公告)号：US07672544B2

公开(公告)日：2010-03-02

申请号：US11914271

申请日：2006-05-22

申请人： Masakazu Takabayashi ,  Kiichi Yoshiara ,  Yasuhisa Shimakura ,  Sadayuki Matsumoto ,  Tateki Mitani ,  Shigeki Kanamaru ,  Kazushi Ishii

发明人： Masakazu Takabayashi ,  Kiichi Yoshiara ,  Yasuhisa Shimakura ,  Sadayuki Matsumoto ,  Tateki Mitani ,  Shigeki Kanamaru ,  Kazushi Ishii

IPC分类号： G02B6/00

CPC分类号： B60K15/077 ,  B60K2015/03217 ,  G01F23/292 ,  G01F23/2925 ,  G01N21/8507

摘要： An optical fiber sensor that can detect a liquid level or detect a property of liquid with high reliability even under a frequently vibrational environment. The optical fiber sensor includes an optical fiber that includes a core having an area where a grating is formed and a clad, the optical fiber being disposed so that at least a part of the area with the grating is immersed in liquid, a light source for making light incident to the optical fiber so that a cladding mode light having a wavelength band is generated by the grating, and a light receiving unit for detecting the intensity of light which is incident from the light source to the optical fiber and transmitted through the grating.

摘要翻译： 即使在频繁的振动环境下也能够高度可靠地检测液位或检测液体的性质的光纤传感器。 光纤传感器包括光纤，其包括具有形成光栅的区域的芯和包层，光纤被布置成使得具有光栅的区域的至少一部分浸没在液体中，光源用于 使光入射到光纤，使得由光栅产生具有波长带的包层模式光;以及光接收单元，用于检测从光源入射到光纤并透射通过光栅的光的强度 。

公开(公告)号：US20090034901A1

公开(公告)日：2009-02-05

申请号：US11914271

申请日：2006-05-22

申请人： Masakazu Takabayashi ,  Kiichi Yoshiara ,  Yasuhisa Shimakura ,  Sadayuki Matsumoto ,  Tateki Mitani ,  Shigeki Kanamaru ,  Kazushi Ishii

发明人： Masakazu Takabayashi ,  Kiichi Yoshiara ,  Yasuhisa Shimakura ,  Sadayuki Matsumoto ,  Tateki Mitani ,  Shigeki Kanamaru ,  Kazushi Ishii

IPC分类号： G02B6/00 ,  G01N21/00

CPC分类号： B60K15/077 ,  B60K2015/03217 ,  G01F23/292 ,  G01F23/2925 ,  G01N21/8507

摘要： An optical fiber sensor that can detect a liquid level or detect a property of liquid with high reliability even under a frequently vibrational environment. The optical fiber sensor includes an optical fiber that includes a core having an area where a grating is formed and a clad, and is disposed so that at least a part of the area with the grating is immersed in liquid, a light source for making light incident to the optical fiber so that a cladding mode light having a wavelength band is occurred by the grating, and a light receiving unit for detecting the intensity of light which is incident from the light source to the optical fiber and transmitted through the grating.

摘要翻译： 即使在频繁的振动环境下也能够高度可靠地检测液位或检测液体的性质的光纤传感器。 光纤传感器包括光纤，其包括具有形成光栅的区域的芯和包层，并且被布置成使得具有光栅的区域的至少一部分浸没在液体中，用于制造光的光源 入射到光纤，使得由光栅发生具有波长带的包层模式光;以及光接收单元，用于检测从光源入射到光纤并透射通过光栅的光的强度。

公开(公告)号：US07077112B2

公开(公告)日：2006-07-18

申请号：US10771458

申请日：2004-02-05

申请人： Tateki Mitani ,  Shigeki Kanamaru ,  Hiroshi Yoshioka ,  Kazushi Ishii

发明人： Tateki Mitani ,  Shigeki Kanamaru ,  Hiroshi Yoshioka ,  Kazushi Ishii

IPC分类号： F02M25/08

CPC分类号： F02M25/08 ,  F02M25/0818

摘要： A fuel vapor leak detecting apparatus, includes: a valve which is in a vapor purge system including a canister that is communicated with a fuel tank and an internal combustion engine, and which controllably closes the vapor purge system; a pressurizing section which introduces atmospheric air into the vapor purge system to pressurize the vapor purge system; and an internal-pressure measuring section which detects an internal pressure of the vapor purge system. The pressurizing section supplies the air for a predetermined time in a state where the vapor purge system is closed. When the internal pressure measured by the internal-pressure measuring section at the air supply is equal to or lower than a preset criterion pressure, it is judged that leak occurs.

摘要翻译： 一种燃料蒸汽泄漏检测装置，包括：阀，其处于包括与燃料箱和内燃机连通的罐的蒸气吹扫系统中，并且可控地关闭蒸气吹扫系统; 加压部分，其将大气引入蒸汽吹扫系统中以对蒸汽吹扫系统加压; 以及检测蒸气吹扫系统的内部压力的内压测量部。 在蒸气吹扫系统关闭的状态下，加压部供给预定时间的空气。 当由内部压力测量部在空气供给下测量的内部压力等于或低于预设的标准压力时，判断为发生泄漏。