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1. 发明专利

JP2012145596A Optical fiber magnetic sensor 有权
标题翻译：光纤传感器
公开(公告)号：JP2012145596A
公开(公告)日：2012-08-02
申请号：JP2012105766
申请日：2012-05-07
申请人： Oki Electric Ind Co Ltd , Technical Research & Development Institute Ministry Of Defence , 沖電気工業株式会社 , 防衛省技術研究本部長
发明人： NAKAMURA TAKASHI , KIMURA TOSHIJI , KUSADA KENTARO , SATO RYOTAKU , SEKIYA TAKEYUKI , OBATA HIDENORI
IPC分类号： G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber magnetic sensor capable of being used under high pressure without using a water pressure-resistant container made of metal.SOLUTION: An optical fiber magnetic sensor comprises a magnetic sensing portion 3 having a sensing optical fiber coil 3a, a magnetostrictive material 3b bonded to the sensing optical fiber coil 3a and an exciting coil 3c for applying an AC magnetic field to the magnetostrictive material 3b and a container 1 in which the magnetic sensing portion 3 is housed therein. Th container 1 is filled with a liquid 2 such as oil.
摘要翻译：要解决的问题：提供一种能够在高压下使用的光纤磁传感器，而不使用由金属制成的防水容器。解决方案：光纤磁传感器包括具有感测光纤线圈3a的磁感测部分3，接合到感测光纤线圈3a的磁致伸缩材料3b和用于向磁致伸缩装置施加交流磁场的励磁线圈3c 材料3b和其中容纳有磁感测部分3的容器1。 Th容器1填充有诸如油的液体2。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012068087A Optical fiber hydrophone having high water pressure resistance 有权
标题翻译：具有高耐水压力的光纤水力发电机
公开(公告)号：JP2012068087A
公开(公告)日：2012-04-05
申请号：JP2010211921
申请日：2010-09-22
申请人： Oki Electric Ind Co Ltd , Technical Research & Development Institute Ministry Of Defence , 沖電気工業株式会社 , 防衛省技術研究本部長
发明人： SAIJO KENJI , OGAWARA CHIAKI , SHIMAMURA HIDEKI , SATO RYOTAKU , MINAMI MAKOTO , TADOKORO YASUAKI
IPC分类号： G01H9/00 , G01D5/26
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber hydrophone having high water pressure resistance, which achieves both of downsizing and high sensitivity.SOLUTION: An optical fiber hydrophone comprises an optical fiber coil 1 composed of cylindrically wound optical fiber, an elastic cylinder 3 arranged inside of the optical fiber coil 1 and having an internal air chamber 2, lids 4 which block both open ends of the optical fiber coil 1, and an orifice 4a which is arranged on one lid 4 and maintains pressure balance between inside and outside of the optical fiber coil 1.
摘要翻译：要解决的问题：提供具有高耐水压性的光纤水听器，其实现了小型化和高灵敏度。解决方案：一种光纤水听器包括由圆柱形卷绕的光纤构成的光纤线圈1，布置在光纤线圈1的内部并具有内部空气室2的弹性筒3，盖4将两个开口端光纤线圈1和布置在一个盖4上并在光纤线圈1的内部和外部之间保持压力平衡的孔口4a。（C）2012，JPO＆INPIT

3. 发明专利

JP2012068081A Optical fiber sensor array and optical fiber sensor array system 有权
标题翻译：光纤传感器阵列和光纤传感器阵列系统
公开(公告)号：JP2012068081A
公开(公告)日：2012-04-05
申请号：JP2010211843
申请日：2010-09-22
申请人： Oki Electric Ind Co Ltd , Technical Research & Development Institute Ministry Of Defence , 沖電気工業株式会社 , 防衛省技術研究本部長
发明人： SAIJO KENJI , OGAWARA CHIAKI , SHIMAMURA HIDEKI , OKUYAMA TOMONAO , SATO RYOTAKU
IPC分类号： G01D5/26
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber sensor array or the like, which suppresses crosstalk even with an increased number of sensing fibers and has a high degree of freedom in a repetition period, a radio frequency, or the like.SOLUTION: An optical fiber sensor array comprises: a plurality of sensing fibers 111 through which light transmitted through a forward path transmission fiber 2 from a pulse light source 1 passes, and which extend or contract according to physical values; a plurality of FBGs 112 which reflect light having an optional wavelength out of light before and after passing through each of the sensing fibers 111; a plurality of optical circulators 120 which are arranged to each of sensor groups 110 composed of grouped sensing fibers 111 and FBGs 112, and through which light from the pulse light source 1 side is passes to sensing fibers 111 of the corresponding sensor groups 110, and light reflected by FBGs 112 from the corresponding senor groups 110 side is passed to a return path transmission fiber 3; and a plurality of optical couplers 130 which multiplex the reflected light to pass it through the return path transmission fiber 3.
摘要翻译：解决的问题：提供一种光纤传感器阵列等，即使在增加数量的感测光纤的情况下也能够抑制串扰，并且在重复周期，射频等中具有高度的自由度。解决方案：一种光纤传感器阵列包括：多个感测光纤111，穿过来自脉冲光源1的前向通路传输光纤2的光通过该传感光纤111，并根据物理值延伸或收缩; 多个FBG 112，其在通过每个感测光纤111之前和之后反射具有任选波长的光; 多个光循环器120被布置到由分组的感测光纤111和FBG 112组成的每个传感器组110，并且来自脉冲光源1侧的光通过其传送到相应的传感器组110的感测光纤111，以及由FBG 112从相应的传感器组110侧反射的光被传送到返回路径传输光纤3; 以及多个光耦合器130，其多路复用反射光以使其穿过返回路径传输光纤3.版权所有：（C）2012，JPO＆INPIT

4. 发明专利

JP2011069700A Optical fiber magnetic sensor 有权
标题翻译：光纤传感器
公开(公告)号：JP2011069700A
公开(公告)日：2011-04-07
申请号：JP2009220431
申请日：2009-09-25
申请人： Oki Electric Industry Co Ltd , Technical Research & Development Institute Ministry Of Defence , 沖電気工業株式会社 , 防衛省技術研究本部長
发明人： NAKAMURA TAKASHI , KIMURA TOSHIJI , TERANISHI YOKO , SATO RYOTAKU
IPC分类号： G01R33/032 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To improve a detection limit in detecting a minute magnetic signal and detection accuracy in measuring the level of a magnetic signal. SOLUTION: In this optical fiber magnetic sensor, a magnetostriction converter is structured by uniting a magnetostrictive material to a sensing optical fiber of a fiber-optic interferometer and the magnetostriction converter is excited by thereto applying an AC magnetic field. Magnetic signals are detected based on a component arising correspondingly to the excitation frequency of the magnetic field and a component arising correspondingly to a frequency twice as high as the excitation frequency out of magnetostriction components arising in the magnetostrictive material. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提高检测微小磁信号的检测限和检测磁信号电平的检测精度。解决方案：在该光纤磁传感器中，磁致伸缩转换器通过将磁致伸缩材料与光纤干涉仪的感测光纤相结合而构成，磁致伸缩转换器由其施加AC磁场而被激发。基于与磁场的激发频率相对应的分量和对应于由磁致伸缩材料中出现的磁致伸缩分量的激发频率的两倍高的频率产生的分量来检测磁信号。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011069704A Optical fiber magnetic sensor 有权
标题翻译：光纤传感器
公开(公告)号：JP2011069704A
公开(公告)日：2011-04-07
申请号：JP2009220544
申请日：2009-09-25
申请人： Oki Electric Industry Co Ltd , Technical Research & Development Institute Ministry Of Defence , 沖電気工業株式会社 , 防衛省技術研究本部長
发明人： NAKAMURA TAKASHI , KIMURA TOSHIJI , KUSADA KENTARO , SATO RYOTAKU , SEKIYA TAKEYUKI , OBATA HIDENORI
IPC分类号： G01R33/032 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber magnetic sensor usable even at high pressure without using a water pressure-resistant container made of metal. SOLUTION: This optical fiber magnetic sensor includes a rubber container 1 having a magnetic sensor 3 housed therein and filled with a liquid 2 such as oil. The magnetic sensor 3 includes a sensing optical fiber coil 3a, a magnetostrictive material 3b bonded to the fiber coil 3a, and an exciting coil 3c for applying an AC magnetic field to the magnetostrictive material 3b. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供即使在高压下也可使用的光纤磁传感器，而不使用由金属制成的防水容器。解决方案：该光纤磁传感器包括：橡胶容器1，其具有容纳在其中的磁传感器3，并填充有液体2，例如油。磁传感器3包括传感光纤线圈3a，与光纤线圈3a接合的磁致伸缩材料3b，以及用于向磁致伸缩材料3b施加交流磁场的励磁线圈3c。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2013181789A Interference-type optical fiber sensor 有权
标题翻译：干涉型光纤传感器
公开(公告)号：JP2013181789A
公开(公告)日：2013-09-12
申请号：JP2012044549
申请日：2012-02-29
申请人： Oki Electric Ind Co Ltd , 沖電気工業株式会社
发明人： SATO RYOTAKU
IPC分类号： G01D5/353 , G01B9/02
摘要： PROBLEM TO BE SOLVED: To provide an interference type optical fiber sensor capable of reducing noises of a bandwidth to be demodulated.SOLUTION: An interference type optical fiber sensor includes a pulse light source 2 for outputting pulse light, demodulation signal generators 201, 202 for generating a signal of a specific frequency, optical frequency shifters 211, 212 for shifting inputted pulse light as much as the specific frequency, an optical coupler 6 for overlapping a plurality of pulse light shifted by the optical frequency shifters 211, 212 by interfering the pulse light with each other, a sensing fiber 9 for detecting a measurement signal by modulating a phase of pulse light outputted from the optical coupler 6 on the measurement signal to output the pulse light, and a demodulator 15 for detecting the measurement signal from the signal outputted form the sensing fiber 9.
摘要翻译：要解决的问题：提供一种能够减少要解调的带宽的噪声的干涉型光纤传感器。解决方案：干涉型光纤传感器包括用于输出脉冲光的脉冲光源2，解调信号发生器201,202，用于产生特定频率的信号，用于将输入的脉冲光移动到特定频率的光学移位器211,212;光耦合器6，用于通过干扰脉冲来重叠由光移频器211,212偏移的多个脉冲光光检测光纤9，用于通过在测量信号上调制从光耦合器6输出的脉冲光的相位来检测测量信号以输出脉冲光;以及解调器15，用于从输出的信号中检测测量信号形成传感光纤9。

7. 发明专利

JP2014095633A Interference type optical fiber sensor 有权
标题翻译：干涉型光纤传感器
公开(公告)号：JP2014095633A
公开(公告)日：2014-05-22
申请号：JP2012247555
申请日：2012-11-09
申请人： Oki Electric Ind Co Ltd , 沖電気工業株式会社
发明人： SATO RYOTAKU
IPC分类号： G01H9/00 , G01B9/02
摘要： PROBLEM TO BE SOLVED: To provide an interference type optical fiber sensor that is able to broaden a frequency band used for demodulation, by tracking a change in the phase of a sensing signal even when the change is fast.SOLUTION: An interference type optical fiber sensor 1 comprises: a light source part 11; a detecting part 21 configured to output a plurality rays of phase-modulated pulse light such that a pulse strings are time-shifted from one another two or more times; and a light receiving element that outputs a pulse waveform on the basis of a pulse string. The light source part 11 includes a pulse light source 31 that extracts continuous light in a predetermined sampling period, thereby outputting a single ray of pulse light; and a feedback circuit that provides feedback for a single ray of pulse light a predetermined number of times, and outputs rays of pulse light. The number of times that feedback is provided is adjusted for each of the feedback circuits, and the respective pulse light periods of rays of pulse light are set to an interval shorter than the sampling period.
摘要翻译：要解决的问题：为了提供能够通过跟踪感测信号的相位变化的能够扩大用于解调的频带的干涉型光纤传感器，即使变化较快。解决方案：干涉型光纤传感器1包括：光源部分11; 检测部21，被配置为输出多个相位调制脉冲光，使得脉冲串相互时间偏移两次以上; 以及基于脉冲串输出脉搏波形的光接收元件。光源部分11包括在预定采样周期中提取连续光的脉冲光源31，从而输出一束脉冲光; 以及反馈电路，其提供预定次数的单次脉冲光的反馈，并输出脉冲光线。针对每个反馈电路调整提供反馈的次数，并且将脉冲光的各个脉冲光周期设置为比采样周期短的间隔。

8. 发明专利

JP2012154778A Interference optical fiber sensor system 有权
标题翻译：干涉光纤传感器系统
公开(公告)号：JP2012154778A
公开(公告)日：2012-08-16
申请号：JP2011013823
申请日：2011-01-26
申请人： Oki Electric Ind Co Ltd , 沖電気工業株式会社
发明人： SATO RYOTAKU
IPC分类号： G01D5/353 , G01B9/02 , G01H9/00 , G01M11/00
摘要： PROBLEM TO BE SOLVED: To improve a phase shift speed for enabling signal demodulation.SOLUTION: An interference optical fiber sensor system comprises: a pulse light source 1 for outputting pulse light; an interferometry 5 that includes a sensing fiber 11a for detecting a physical amount and a delay compensation fiber 30a having the same propagation delay time (τd) as the sensing fiber 11a, and causes interference of the pulse light from the pulse light source 1; and a detection part for detecting a signal φ corresponding to the physical amount by sampling interference light from the interferometry 5. The pulse light source 1 outputs the pulse light at a cycle shorter than the propagation delay time (τd) corresponding to time from input of the pulse light to the sensing fiber 11a to output thereof, and the detection part samples the interference light at a cycle shorter than the propagation delay time (τd) of the sensing fiber 11a.
摘要翻译：要解决的问题：提高用于启用信号解调的相移速度。解决方案：干涉光纤传感器系统包括：用于输出脉冲光的脉冲光源1; 包括用于检测物理量的感测光纤11a和具有与感测光纤11a相同的传播延迟时间（τd）的延迟补偿光纤30a的干涉测量5，并且使来自脉冲光源1的脉冲光产生干扰; 以及检测部分，用于通过对来自干涉测量法5的干涉光进行采样来检测与物理量相对应的信号φ。脉冲光源1以比从输入的时间起的传播延迟时间（τd）短的周期输出脉冲光脉冲光到感测光纤11a输出，并且检测部分以比感测光纤11a的传播延迟时间（τd）短的周期对干涉光进行采样。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2011214921A Interference type optical fiber sensor system and calculator 审中-公开
标题翻译：干涉型光纤传感器系统和计算器
公开(公告)号：JP2011214921A
公开(公告)日：2011-10-27
申请号：JP2010081859
申请日：2010-03-31
申请人： Oki Electric Industry Co Ltd , 沖電気工業株式会社
发明人： SATO RYOTAKU , NAKAJIMA YASUYUKI
IPC分类号： G01D5/26 , G01B9/02 , G01B11/16
摘要： PROBLEM TO BE SOLVED: To provide an interference type optical fiber sensor system dispensing with a calculator having a wide dynamic range.SOLUTION: The sensor system includes: an interferometer having a sensing fiber 11a for detecting a physical quantity and a reference fiber; an O/E converter 33 for converting interference light 32a including a measurement signal 3 of the physical quantity into an electric signal; AM demodulators 51a, 51b for extracting a sine wave component and a cosine wave component from the electric signal; an arctangent calculator 53 for performing arctangent operation by using the sine wave component and the cosine wave component, and for output of a signal including the measurement signal; and a differentiator 61 for calculating a difference in each prescribed time of signals output from the arctangent calculator, and for output of a differential signal.
摘要翻译：要解决的问题：提供一种分配具有宽动态范围的计算器的干涉型光纤传感器系统。解决方案：传感器系统包括：具有用于检测物理量的感测光纤11a和参考光纤的干涉仪; 用于将包括物理量的测量信号3的干扰光32a转换为电信号的O / E转换器33; AM解调器51a，51b，用于从电信号中提取正弦波分量和余弦波分量; 反正切计算器53，用于通过使用正弦波分量和余弦波分量来执行反正切运算，并输出包括测量信号的信号; 以及微分器61，用于计算从反正切计算器输出的信号的每个规定时间的差值，以及差分信号的输出。

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