公开(公告)号：EP1927837A3

公开(公告)日：2009-05-27

申请号：EP07122009.9

申请日：2007-11-30

申请人： Fuji Jukogyo Kabushiki Kaisha ,  The University of Tokyo

发明人： NAKAMURA, Noritsugu ,  OGISU, Toshimichi ,  TAKEDA, Nobuo

IPC分类号： G01M1/08

CPC分类号： G01M11/083

摘要： Disclosed is an impact detection system (10) including: three or more optical fiber sensors (30) disposed respectively in different positions, the sensors (30) not being in alignment with one another, in which the sensors (30) each includes a core portion (32) to have a grating portion (33) formed therein, the grating portion (33) has a plurality of gratings; a light source (61); two or more optical filters having different pass bands to one another to an output light of one of the optical fiber sensors; and an arithmetic processing apparatus (50) to perform arithmetic processing of output values of the three or more optical fiber sensors (30) through the optical filters so as to specify a position on the subject (Z) where an impact (21) is loaded, the output values being obtained when the impact (21) is loaded on the subject (Z).

公开(公告)号：EP1927837A2

公开(公告)日：2008-06-04

申请号：EP07122009.9

申请日：2007-11-30

申请人： Fuji Jukogyo Kabushiki Kaisha

发明人： NAKAMURA, Noritsugu ,  OGISU, Toshimichi ,  TAKEDA, Nobuo

IPC分类号： G01M1/08

CPC分类号： G01M11/083

摘要： Disclosed is an impact detection system (10) including: three or more optical fiber sensors (30) disposed respectively in different positions, the sensors (30) not being in alignment with one another, in which the sensors (30) each includes a core portion (32) to have a grating portion (33) formed therein, the grating portion (33) has a plurality of gratings; a light source (61); two or more optical filters having different pass bands to one another to an output light of one of the optical fiber sensors; and an arithmetic processing apparatus (50) to perform arithmetic processing of output values of the three or more optical fiber sensors (30) through the optical filters so as to specify a position on the subject (Z) where an impact (21) is loaded, the output values being obtained when the impact (21) is loaded on the subject (Z).

摘要翻译： 公开了一种冲击检测系统（10），其包括：分别设置在不同位置的三个或更多个光纤传感器（30），所述传感器（30）不彼此对准，其中所述传感器（30）各自包括芯 部分（32）具有形成在其中的光栅部分（33），光栅部分（33）具有多个光栅; 光源（61）; 两个或更多个光滤波器，其中一个光纤传感器的输出光彼此具有不同的通带; 以及运算处理装置（50），通过所述滤光器对所述三个以上的光纤传感器（30）的输出值进行运算处理，以指定对所述被摄体（Z）施加冲击（21）的位置 ，当冲击（21）被加载到被摄体（Z）上时获得的输出值。

公开(公告)号：EP1927839A2

公开(公告)日：2008-06-04

申请号：EP07122026.3

申请日：2007-11-30

申请人： Fuji Jukogyo Kabushiki Kaisha

发明人： OGISU, Toshimichi ,  NAKAMURA, Noritsugu ,  TAKEDA, Nobuo

IPC分类号： G01M11/08

CPC分类号： G01M11/083 ,  G01D5/35303

摘要： Disclosed is an impact detection system (10) including: an optical fiber (34) including a plurality of sensor sections (30a - 30d) to reflect light, a wavelength band of the reflected light vibrates depending on an elastic wave propagating through a subject (Z) to be inspected; a light source (61) to input light into the optical fiber (34); optical filters each connected to an output terminal of the optical fiber (34); and an arithmetic processing unit (50) to detect the impact (21) from output values of sensor sections (30a - 30d), wherein the wavelength bands of the sensor sections (30a - 30d) in the optical fiber (34) are distributed such that the vibration bands caused by the impact (21) to be detected do not overlap with each other, and a pass band of the optical filter corresponding to one of the sensor sections (30a - 30d) is distributed in the vibration band caused by the detection object (Z), and is distributed in both sides of a center of the wavelength band of the one sensor section.

摘要翻译： 公开了一种冲击检测系统（10），包括：光纤（34），其包括反射光的多个传感器部分（30a-30d），所述反射光的波长带根据传播通过被摄体的弹性波而振动（ Z）进行检查; 用于将光输入到光纤（34）中的光源（61）; 每个连接到光纤（34）的输出端子的滤光器; 以及运算处理单元，用于检测来自传感器部分（30a-30d）的输出值的影响（21），其中光纤（34）中的传感器部分（30a-30d）的波长带分布如下 由待检测的冲击（21）引起的振动带彼此不重叠，并且与其中一个传感器部分（30a-30d）相对应的滤光器的通带分布在由 检测对象（Z），并分布在一个传感器部分的波长带的中心的两侧。