公开(公告)号：US4749855A

公开(公告)日：1988-06-07

申请号：US869903

申请日：1986-06-03

申请人： Kenshu Watanabe

发明人： Kenshu Watanabe

IPC分类号： G01M3/38 ,  G01M3/04 ,  H01J5/16

CPC分类号： G01M3/04

摘要： A method of detecting liquid leakage from a wall portion of apparatus and/or tubes containing a liquid. A cover member is attached to an outer surface of the wall portion to form a space defined between the cover member and the wall portion, and an optical fiber is inserted into the space through a hole in the cover member. A light beam is supplied through a palarized beam splitter to the optical fiber such that reflected light from the end of the optical fiber is measured, and the presence of leakage is determined in accordance with the amount of reflected light.

摘要翻译： 一种从容纳液体的装置和/或管的壁部检测液体泄漏的方法。 盖构件附接到壁部的外表面以形成限定在盖构件和壁部之间的空间，并且光纤通过盖构件中的孔插入到空间中。 通过光束分光器将光束提供给光纤，使得测量来自光纤端部的反射光，并根据反射光量确定泄漏的存在。

公开(公告)号：US4648480A

公开(公告)日：1987-03-10

申请号：US766433

申请日：1985-08-16

申请人： Kenshu Watanabe ,  Kiminori Shiba ,  Mikiya Arai ,  Masaya Yamaguchi ,  Yasuo Fujiki ,  Ryohei Fujimoto

发明人： Kenshu Watanabe ,  Kiminori Shiba ,  Mikiya Arai ,  Masaya Yamaguchi ,  Yasuo Fujiki ,  Ryohei Fujimoto

IPC分类号： H04R7/08 ,  H04R19/04 ,  H04R7/00

CPC分类号： H04R7/08 ,  H04R19/04

摘要： A condenser microphone utilizable at high temperature and intense radioactive rays. The microphone has a tension ring and a backplate, both of which are made of a metal having a small coefficient of linear expansion relative to the other parts of the microphone. The tension ring is fitted to a tension ring holder, and the backplate is mounted on the tension ring holder through an insulating material so that the tension ring and the backplate are held together to form a unitary structure.

摘要翻译： 可用于高温和强烈放射线的电容麦克风。 麦克风具有张力环和背板，两者均由相对于麦克风的其它部分具有小线性膨胀系数的金属制成。 张力环安装在张力环支架上，背板通过绝缘材料安装在张力环支架上，使张力环和背板保持在一起形成一体结构。

公开(公告)号：US4648425A

公开(公告)日：1987-03-10

申请号：US179879

申请日：1980-08-20

申请人： Kenshu Watanabe ,  Tadashi Uchikawa ,  Masashi Takiyama ,  Takashi Kurahashi

发明人： Kenshu Watanabe ,  Tadashi Uchikawa ,  Masashi Takiyama ,  Takashi Kurahashi

IPC分类号： G21C17/003 ,  F16K37/00 ,  G21C9/004

CPC分类号： G21C9/004 ,  F16K37/00 ,  Y02E30/40 ,  Y10T137/8326

摘要： A system and a method of confirming the operation of a steam relieving safety valve for a water-cooled nuclear reactor are provided. Acoustic vibration generated by steam relieved from the safety valve when the latter is opened is detected by an acoustic emission sensor. The acoustic emission sensor is mounted on the safety valve or a steam relief pipe connected to the safety valve.

摘要翻译： 提供了一种确认水冷核反应堆用蒸汽消除安全阀的操作的系统和方法。 通过声发射传感器检测由打开后者从安全阀释放的蒸汽产生的声振动。 声发射传感器安装在安全阀或连接到安全阀的蒸汽排放管上。