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1. 发明授权

US07534031B2 Temperature measuring device and temperature measurement method 有权
标题翻译：温度测量装置和温度测量方法
公开(公告)号：US07534031B2
公开(公告)日：2009-05-19
申请号：US11791365
申请日：2006-10-05
申请人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka
发明人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka
IPC分类号： G01J5/00
CPC分类号： G01K11/32
摘要： The temperature measuring device of the present invention comprises: a light source for outputting light; an optical fiber to which light outputted by the light source is inputted and from which Brillouin scattered light is outputted; a detection unit for detecting a spectrum of the Brillouin scattered light; a judgment unit for judging whether or not a frequency shift of the spectrum of the Brillouin scattered light detected by the detection unit belongs to a specific region in which the rate of change of the frequency shift with respect to the temperature of the optical fiber is smaller than a predetermined value; and an analysis unit for, when the judgment unit judges that the frequency shift does not belong to the specific region, analyzing the temperature in use of the frequency shift, and for, when the judgment unit judges that the frequency shift belongs to the specific region, not performing analysis, or analyzing the temperature in use of at least the linewidth of the spectrum of the Brillouin scattered light detected by the detection means.
摘要翻译：本发明的温度测量装置包括：用于输出光的光源; 输入光源输出的光并输出布里渊散射光的光纤; 用于检测布里渊散射光的光谱的检测单元; 判断单元，用于判断由检测单元检测到的布里渊散射光的频谱的频移是否属于频移相对于光纤的温度的变化率较小的特定区域超过预定值; 以及分析单元，用于当判断单元判定频移不属于特定区域时，分析使用频移的温度，并且当判断单元判断频移属于特定区域时，不进行分析，或分析至少使用由检测装置检测的布里渊散射光的光谱的线宽的温度。

2. 发明授权

US07543982B2 Sensor and disturbance measurement method using the same 有权
标题翻译：传感器和干扰测量方法使用相同
公开(公告)号：US07543982B2
公开(公告)日：2009-06-09
申请号：US11665823
申请日：2006-09-29
申请人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka , Hisashi Tanji
发明人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka , Hisashi Tanji
IPC分类号： G01K3/00
CPC分类号： G01L1/243 , G01B11/18 , G01D5/35348 , G01K11/32 , G01M11/083
摘要： The present invention relates to a sensor or the like having a structure that enables accurate temperature measurement in a wide temperature range including a low-temperature region and is suitable for independently and accurately determining temperature variations and strains appearing in an object to be measured. The sensor comprises a laser light source, a sensor section that has a plurality of waveguides transmitting a laser light from the laser light source therethrough, a detecting section, and an analyzing section. The detecting section detects a plurality of Brillouin spectra obtained from the sensor section. The analyzing section determines at least one measurement value of a temperature in the sensor section and a strain generated in the sensor section, based on fluctuations of parameters defining the respective detected Brillouin spectra. In particular, the sensor section has a structure such that the variation of the Brillouin spectrum in response to a disturbance differs between the waveguides. Thus, by simultaneously monitoring the Brillouin spectra that varying a different manner in a plurality of waveguides, it is possible not only to measure accurately the temperature in a wide temperature range including a low-temperature region, but also to make distinction between the strain and temperature.
摘要翻译：本发明涉及具有能够在包括低温区域的宽温度范围内进行精确的温度测量的结构的传感器等，并且适用于独立且精确地确定出现在被测量物体中的温度变化和应变。传感器包括激光光源，传感器部分，其具有透射来自激光光源的激光的多个波导，检测部和分析部。检测部分检测从传感器部分获得的多个布里渊频谱。基于定义相应检测到的布里渊光谱的参数的波动，分析部分确定传感器部分中的温度的至少一个测量值和在传感器部分中产生的应变。特别地，传感器部分具有使得响应于干扰的布里渊频谱的变化在波导之间不同的结构。因此，通过同时监视在多个波导中改变不同方式的布里渊光谱，不仅可以在包括低温区域的宽温度范围内精确地测量温度，而且可以区分应变和温度。

3. 发明申请

US20080130707A1 Temperature Measuring Device and Temperature Measurement Method 有权
标题翻译：温度测量装置和温度测量方法
公开(公告)号：US20080130707A1
公开(公告)日：2008-06-05
申请号：US11791365
申请日：2006-10-05
申请人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka
发明人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka
IPC分类号： G01K11/32 , G06F19/00
CPC分类号： G01K11/32
摘要： The temperature measuring device of the present invention comprises: a light source for outputting light; an optical fiber to which light outputted by the light source is inputted and from which Brillouin scattered light is outputted; a detection unit for detecting a spectrum of the Brillouin scattered light; a judgment unit for judging whether or not a frequency shift of the spectrum of the Brillouin scattered light detected by the detection unit belongs to a specific region in which the rate of change of the frequency shift with respect to the temperature of the optical fiber is smaller than a predetermined value; and an analysis unit for, when the judgment unit judges that the frequency shift does not belong to the specific region, analyzing the temperature in use of the frequency shift, and for, when the judgment unit judges that the frequency shift belongs to the specific region, not performing analysis, or analyzing the temperature in use of at least the linewidth of the spectrum of the Brillouin scattered light detected by the detection means.
摘要翻译：本发明的温度测量装置包括：用于输出光的光源; 输入光源输出的光并输出布里渊散射光的光纤; 用于检测布里渊散射光的光谱的检测单元; 用于判断由检测单元检测到的布里渊散射光的频谱的频移是否属于其中相对于光纤的温度变化的频率变小的特定区域的判断单元超过预定值; 以及分析单元，用于当判断单元判定频移不属于特定区域时，分析使用频移的温度，并且当判断单元判断频移属于特定区域时，不进行分析，或分析至少使用由检测装置检测的布里渊散射光的光谱的线宽的温度。

4. 发明申请

US20080084914A1 Sensor and Disturbance Measurement Method Using the Same 有权
标题翻译：传感器和干扰测量方法使用它
公开(公告)号：US20080084914A1
公开(公告)日：2008-04-10
申请号：US11665823
申请日：2006-09-29
申请人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka , Hisashi Tanji
发明人： Yoshinori Yamamoto , Itaru Sakabe , Eisuke Sasaoka , Hisashi Tanji
IPC分类号： G01K3/00
CPC分类号： G01L1/243 , G01B11/18 , G01D5/35348 , G01K11/32 , G01M11/083
摘要： The present invention relates to a sensor or the like having a structure that enables accurate temperature measurement in a wide temperature range including a low-temperature region and is suitable for independently and accurately determining temperature variations and strains appearing in an object to be measured. The sensor comprises a laser light source, a sensor section that has a plurality of waveguides transmitting a laser light from the laser light source therethrough, a detecting section, and an analyzing section. The detecting section detects a plurality of Brillouin spectra obtained from the sensor section. The analyzing section determines at least one measurement value of a temperature in the sensor section and a strain generated in the sensor section, based on fluctuations of parameters defining the respective detected Brillouin spectra. In particular, the sensor section has a structure such that the variation of the Brillouin spectrum in response to a disturbance differs between the waveguides. Thus, by simultaneously monitoring the Brillouin spectra that varying a different manner in a plurality of waveguides, it is possible not only to measure accurately the temperature in a wide temperature range including a low-temperature region, but also to make distinction between the strain and temperature.
摘要翻译：本发明涉及具有能够在包括低温区域的宽温度范围内进行精确的温度测量的结构的传感器等，并且适用于独立且精确地确定出现在被测量物体中的温度变化和应变。传感器包括激光光源，传感器部分，其具有透射来自激光光源的激光的多个波导，检测部和分析部。检测部分检测从传感器部分获得的多个布里渊频谱。基于定义相应检测到的布里渊光谱的参数的波动，分析部分确定传感器部分中的温度的至少一个测量值和在传感器部分中产生的应变。特别地，传感器部分具有使得响应于干扰的布里渊频谱的变化在波导之间不同的结构。因此，通过同时监视在多个波导中改变不同方式的布里渊光谱，不仅可以在包括低温区域的宽温度范围内精确地测量温度，而且可以区分应变和温度。

5. 发明授权

US06744954B1 Submarine optical cable, optical fiber unit employed in the submarine optical cable, and method of making optical fiber unit 有权
标题翻译：潜艇光缆，海底光缆中使用的光纤单元，以及制造光纤单元的方法
公开(公告)号：US06744954B1
公开(公告)日：2004-06-01
申请号：US09441559
申请日：1999-11-17
申请人： Shigeru Tanaka , Eisuke Sasaoka , Itaru Sakabe , Takeo Tsurumi , Yasushi Ito
发明人： Shigeru Tanaka , Eisuke Sasaoka , Itaru Sakabe , Takeo Tsurumi , Yasushi Ito
IPC分类号： G02B644
CPC分类号： G02B6/4427 , G02B6/4433
摘要： The present invention relates to a wide-band, low-loss, submarine optical cable excellent in productivity, an optical fiber unit employed in the submarine optical cable, and a method of making the optical fiber unit. The optical fiber unit employed in the submarine optical cable comprises a loose structure in which one or more coated optical fibers are accommodated together with a soft resin in a space formed within a plastic support. In particular, one or more compression members are embedded in the plastic support along the space accommodating the coated optical fibers. The compression members closely in contact with the plastic support prevents the shrinkage of the plastic support from occurring due to temperature changes before forming a cable utilizing the optical fiber unit. Preventing the shrinkage of the plastic support from occurring before forming the cable suppresses the increase in surplus length ratio of the accommodated coated optical fibers, thereby effectively restraining the transmission loss of the submarine optical cable from increasing due to the increase in surplus length ratio.
摘要翻译：本发明涉及生产率优良的宽带，低损耗海底光缆，在海底光缆中使用的光纤单元以及制造光纤单元的方法。在海底光缆中使用的光纤单元包括松散结构，其中一个或多个涂覆的光纤与柔性树脂一起容纳在形成在塑料支撑体内的空间中。特别地，一个或多个压缩构件沿着容纳涂覆光纤的空间嵌入在塑料支撑件中。紧密地与塑料支撑件接触的压缩构件防止在形成利用光纤单元的电缆之前由于温度变化而发生塑料支撑件的收缩。防止在形成电缆之前发生塑料支撑件的收缩，抑制了被容纳的被覆光纤的多余长度比的增加，从而有效地抑制了由于冗余长度比的增加导致的海底光缆的传输损耗的增加。

6. 发明授权

US08184937B2 Optical cable 有权
标题翻译：光缆
公开(公告)号：US08184937B2
公开(公告)日：2012-05-22
申请号：US12526440
申请日：2008-01-29
申请人： Itaru Sakabe , Eisuke Sasaoka , Tomoyuki Hattori
发明人： Itaru Sakabe , Eisuke Sasaoka , Tomoyuki Hattori
IPC分类号： G02B6/036 , G02B6/02
CPC分类号： G02B6/4432 , C03C25/106 , G02B6/0288 , G02B6/4436 , G02B6/4482
摘要： The present invention relates to an optical cable with a structure for improving a durability performance. The optical cable comprises, as a basic structure: a coated optical fiber, and a cable jacket covering an outer periphery of the coated optical fiber. The coated optical fiber is constituted by a glass fiber and a coating layer of an ultraviolet curing resin. To realize excellent impact resistance as durability performance, the coating layer of the coated optical fiber includes a first coating with a Young's modulus of 200 MPa or more. Meanwhile, the cable jacket is comprised of a thermoplastic resin that does not contain any halogens. The cable jacket has a thickness of 0.7 mm or more, a flame retardancy of V2 or more according to UL Standards, and a Young's modulus equal to or greater than that of the first coating.
摘要翻译：本发明涉及具有提高耐久性能的结构的光缆。光缆包括作为基本结构的涂覆光纤，以及覆盖被覆光纤的外周的电缆护套。被覆光纤由玻璃纤维和紫外线固化树脂的被覆层构成。为了实现作为耐久性的优异的耐冲击性，涂布光纤的涂层包括杨氏模量为200MPa以上的第一涂层。同时，电缆护套由不含任何卤素的热塑性树脂组成。电缆护套的厚度为0.7mm以上，根据UL标准的阻燃性为V2以上，杨氏模量等于或大于第一涂层的杨氏模量。

7. 发明申请

US20100322572A1 OPTICAL CABLE 有权
标题翻译：光电缆
公开(公告)号：US20100322572A1
公开(公告)日：2010-12-23
申请号：US12526440
申请日：2008-01-29
申请人： Itaru Sakabe , Eisuke Sasaoka , Tomoyuki Hattori
发明人： Itaru Sakabe , Eisuke Sasaoka , Tomoyuki Hattori
IPC分类号： G02B6/44
CPC分类号： G02B6/4432 , C03C25/106 , G02B6/0288 , G02B6/4436 , G02B6/4482
摘要： The present invention relates to an optical cable with a structure for improving a durability performance. The optical cable comprises, as a basic structure: a coated optical fiber, and a cable jacket covering an outer periphery of the coated optical fiber. The coated optical fiber is constituted by a glass fiber and a coating layer of an ultraviolet curing resin. To realize excellent impact resistance as durability performance, the coating layer of the coated optical fiber includes a first coating with a Young's modulus of 200 MPa or more. Meanwhile, the cable jacket is comprised of a thermoplastic resin that does not contain any halogens. The cable jacket has a thickness of 0.7 mm or more, a flame retardancy of V2 or more according to UL Standards, and a Young's modulus equal to or greater than that of the first coating.
摘要翻译：本发明涉及具有提高耐久性能的结构的光缆。光缆包括作为基本结构的涂覆光纤，以及覆盖被覆光纤的外周的电缆护套。被覆光纤由玻璃纤维和紫外线固化树脂的被覆层构成。为了实现作为耐久性的优异的耐冲击性，涂布光纤的涂层包括杨氏模量为200MPa以上的第一涂层。同时，电缆护套由不含任何卤素的热塑性树脂组成。电缆护套的厚度为0.7mm以上，根据UL标准的阻燃性为V2以上，杨氏模量等于或大于第一涂层的杨氏模量。

8. 发明授权

US07995198B2 Optical fiber feature distribution sensor 有权
标题翻译：光纤特征分布传感器
公开(公告)号：US07995198B2
公开(公告)日：2011-08-09
申请号：US12438464
申请日：2007-08-21
申请人： Eisuke Sasaoka , Yoshinori Yamamoto
发明人： Eisuke Sasaoka , Yoshinori Yamamoto
IPC分类号： G01N21/00
CPC分类号： G01B11/18 , G01D5/35348 , G01K11/32 , G01K2011/322 , G01M11/083 , G01M11/39
摘要： The present invention relates to an optical fiber characteristic distribution sensor comprising a structure to effectively reduce the measurement errors of position in the temperature distribution measurement etc. The sensor comprises an optical fiber section, part of which is installed in an object to be measured and to which probe light and pumping light are inputted in opposite directions. The optical fiber section includes a marker portion where data relating to the shape of a BGS in the maker has been preliminarily measured in a state where the optical fiber section is installed in a normal state. At the time of calculating the characteristic distribution in the longitudinal direction of the optical fiber section while measuring the data relating to the BGS shape, the errors of the calculated gain occurrence position are corrected, for example, by shifting the scanning range of phase difference between the probe light and the pumping light. The amount of shift of the scanning range of phase difference is given based on a difference value between the phase difference at the time of measurement when the BGS that reflects the gain that has occurred in the marker portion is measured, and the reference phase difference when data relating to the already known shape of the BGS in the marker portion has been preliminarily measured.
摘要翻译：本发明涉及一种光纤特性分布传感器，包括有效降低温度分布测量等中位置的测量误差的结构。传感器包括光纤部分，其一部分安装在待测物体中，并且探测光和泵浦光的方向相反。光纤部分包括在光纤部分安装在正常状态的状态下已经预先测量了与制造商中的BGS的形状相关的数据的标记部分。在测量与BGS形状相关的数据的同时计算光纤部分的纵向方向上的特性分布时，计算出的增益发生位置的误差被校正，例如通过将相位差的扫描范围探头灯和抽光灯。基于当测量反映在标记部分中发生的增益的BGS时的测量时的相位差之间的差值以及基准相位差，给出相位差的扫描范围的偏移量已经预先测量了与标记部中的BGS的已知形状有关的数据。

9. 发明申请

US20100092127A1 OPTICAL FIBER DISTRIBUTION TYPE SENSOR AND OPTICAL FIBER DISTRIBUTION TYPE DETECTING METHOD 有权
标题翻译：光纤分布式传感器和光纤分布式检测方法
公开(公告)号：US20100092127A1
公开(公告)日：2010-04-15
申请号：US12443113
申请日：2007-09-19
申请人： Eisuke Sasaoka , Yoshinori Yamamoto
发明人： Eisuke Sasaoka , Yoshinori Yamamoto
IPC分类号： G01N21/00 , G02B6/00 , G01D5/353 , G01K11/32
CPC分类号： G01K11/32 , G01D5/35348 , G01L1/242 , G01M11/085
摘要： The present invention relates to an optical fiber distribution type detecting method and the like equipped with a structure for enabling efficient measurement of a temperature distribution or strain distribution. This method regulates a modulation frequency and modulation index for probe light and pumping light opposingly incident on an object from a light source and a phase difference between the probe light and pumping light, thereby successively setting the length and location of search domains in a region to be measured. In particular, a detection process is executed while resetting the search domain length shorter at a predetermined interval of time or when an abnormality is detected. Thus partly changing the distance resolution for a specific region in the course of the detection process enables efficient measurement operations in a short time.
摘要翻译：本发明涉及一种配备有能够有效测量温度分布或应变分布的结构的光纤分布型检测方法等。该方法调节从光源反射入射到物体上的探测光和泵浦光的调制频率和调制指数以及探测光和泵浦光之间的相位差，从而将区域中的搜索域的长度和位置依次设置为被测量。特别地，在以预定的时间间隔或当检测到异常时将搜索域长度更短地重置时，执行检测处理。因此，在检测过程中部分地改变特定区域的距离分辨率能够在短时间内进行有效的测量操作。

10. 发明申请

US20060093293A1 Optical fibers 有权
标题翻译：光纤
公开(公告)号：US20060093293A1
公开(公告)日：2006-05-04
申请号：US10519381
申请日：2004-08-04
申请人： Eisuke Sasaoka , Yoshinori Yamamoto
发明人： Eisuke Sasaoka , Yoshinori Yamamoto
IPC分类号： G02B6/02
CPC分类号： G02B6/02 , C03B37/01248 , C03C3/06 , C03C13/04 , G02B6/02004 , G02B6/02223 , G02B6/02242 , G02B6/02266 , G02B6/02285 , G02B6/26
摘要： The present invention provides an optical fiber enabling signal transmission in a wider band, which is applicable to optical transmission not only in the 1.3 μm wavelength band but also in the 1.55 μm wavelength band, as a transmission medium of a WDM optical communication system capable of transmitting signal light of multiple channels. The optical fiber is comprised of silica glass and has a core region along a predetermined axis and a cladding region provided on the outer periphery of the core region. The optical fiber comprising such a structure has, as the following typical optical characteristics, a cable cutoff wavelength of 1260 nm or less, a transmission loss of 0.32 dB/km or less at the wavelength of 1310 nm, and an OH-related loss increase of 0.3 dB/km or less at the wavelength of 1380 nm.
摘要翻译：本发明提供一种能够在更宽的频带中进行信号传输的光纤，其可以应用于不仅在1.3μm波长带中，而且在1.55μm波长带中的光传输，作为WDM光通信系统的传输介质，能够传输多个信道的信号灯。光纤由石英玻璃构成，具有预定轴的芯部区域和设置在芯部区域的外周的包层区域。包含这种结构的光纤具有以下典型的光学特性：电缆截止波长为1260nm或更小，波长1310nm处的传输损耗为0.32dB / km或更小，OH相关损耗增加在1380nm的波长下为0.3dB / km以下。

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