公开(公告)号：US6121617A

公开(公告)日：2000-09-19

申请号：US26514

申请日：1998-02-19

申请人： Noritomo Hirayama ,  Satoru Sakaue ,  Masahiro Uno ,  Yosheyuki Sekine

发明人： Noritomo Hirayama ,  Satoru Sakaue ,  Masahiro Uno ,  Yosheyuki Sekine

IPC分类号： G01N21/03 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/61

CPC分类号： G01N21/3504 ,  G01N21/031

摘要： An infrared gas analyzer is formed of a source of infrared rays for emitting infrared flux; an infrared flux interrupting device for chopping the emitted infrared flux from the source of the infrared rays; a condensing optical system for obtaining a predetermined solid angle in the emitted infrared flux to thereby form a condensed flux; and a multi-reflection cell disposed at an outlet of the condensing optical system, to which the condensed flux is supplied and a gas to be measured is fed. The multi-reflection cell has a multi-reflection optical system formed of a plurality of concave mirrors. The analyzer also includes an infrared level detector for detecting an amount of infrared rays with a wavelength band absorbed by a component gas to be analyzed and contained in the infrared rays emitted by the multi-reflection cell. At least the condensing optical system, multi-reflection cell and infrared level detector are accurately positioned by using as a reference a position of the condensing optical system at which the condensed flux is emitted, and are coupled tightly at coupling positions without an air-flowing layer. Accordingly, the infrared gas analyzer can be made small to detect and analyze a low density component gas and for an explosion-proof environment.

摘要翻译： 红外线气体分析器由用于发射红外线的红外线源形成; 用于从红外线源切断发射的红外线通量的红外线通量中断装置; 用于在发射的红外线通量中获得预定立体角从而形成冷凝通量的聚光光学系统; 以及设置在聚光光学系统的出口处的多反射单元，供给冷凝的通量并供给待测量的气体。 多反射单元具有由多个凹面镜构成的多反射光学系统。 分析仪还包括红外线检测器，用于检测由待分析的成分气体吸收的波长带的红外线的量，并包含在由多反射单元发射的红外线中。 通过使用冷凝光束发射的聚光光学系统的位置作为参考，精确地定位聚光光学系统，多反射单元和红外电平检测器，并且在没有空气流动的情况下紧密耦合在耦合位置 层。 因此，能够使红外线气体分析装置小型化，对低密度成分气体和防爆环境进行检测分析。

公开(公告)号：US6008479A

公开(公告)日：1999-12-28

申请号：US938966

申请日：1997-09-26

申请人： Wan Jiang ,  Kenichi Tsuji ,  Tetsuo Uchiyama ,  Mutsumi Nagumo ,  Satoru Sakaue ,  Masahiro Uno

发明人： Wan Jiang ,  Kenichi Tsuji ,  Tetsuo Uchiyama ,  Mutsumi Nagumo ,  Satoru Sakaue ,  Masahiro Uno

IPC分类号： G01J3/10 ,  C04B35/58 ,  H01K1/04 ,  H05B3/00 ,  H05B3/10 ,  H05B3/14

CPC分类号： H05B3/148 ,  H01K1/04 ,  H05B3/0038 ,  H05B3/141 ,  H05B2203/032

摘要： In an infrared radiation source containing hot-pressed molybdenum disilicide reinforced with silicon carbide whiskers as the illuminant thereof, terminal portions of the illuminant having a protective dense silica film of 5 to 20 .mu.m in thickness formed on the surface thereof which portions are to be heated at a temperature of 400 to 800.degree. C. are either set to have a current density of at most 12 A/mm.sup.2 or disposed in dry air having a relative humidity at 25.degree. C. of at most 30% (absolute humidity: 0.00588). As a result, the low-temperature oxidation phenomenon that would otherwise be developed in the terminal portions of the illuminant is suppressed. Thus, there can be obtained an infrared radiation source containing an illuminant made of molybdenum disilicide reinforced with silicon carbide whiskers and having a long serviceable life span.

摘要翻译： 在含有用碳化硅晶须作为发光体加强的热压二硅化钼的红外线辐射源中，发光体的端部具有形成在其表面上的部分的厚度为5〜20μm的保护性致密二氧化硅膜， 在400〜800℃的温度下加热至电流密度至多为12A / mm2，或者设置在相对湿度25℃的干燥空气中至多30％（绝对湿度：0.00588 ）。 结果，抑制了在发光体的末端部分产生的低温氧化现象。 因此，可以获得含有由碳化硅晶须增强的二硅化钼制成的发光体并具有长使用寿命的红外线辐射源。

公开(公告)号：US5908572A

公开(公告)日：1999-06-01

申请号：US914032

申请日：1997-07-21

申请人： Mutsumi Nagumo ,  Satoru Sakaue ,  Masahiro Uno ,  Masao Sakanaka

发明人： Mutsumi Nagumo ,  Satoru Sakaue ,  Masahiro Uno ,  Masao Sakanaka

IPC分类号： H05B3/14 ,  H05B1/02

CPC分类号： H05B3/141 ,  H05B2203/018 ,  H05B2203/032

摘要： A ceramic heating element has been conventionally driven by direct-current voltage, but the direct-current voltage causes a problem in the heating element. Therefore, in a method of the present invention, an alternating current is supplied to the heating element by changing a direct current, so that deformation of the heating element can be prevented and reliability can be improved.

摘要翻译： 陶瓷加热元件通常由直流电驱动，但直流电压会导致加热元件的问题。 因此，在本发明的方法中，通过改变直流电流向加热元件提供交流电流，从而可以防止加热元件的变形，提高可靠性。

公开(公告)号：US5543956A

公开(公告)日：1996-08-06

申请号：US132291

申请日：1993-10-06

申请人： Wataru Nakagawa ,  Satoru Sakaue ,  Michihiko Tsuruoka

发明人： Wataru Nakagawa ,  Satoru Sakaue ,  Michihiko Tsuruoka

IPC分类号： B25J7/00 ,  B81B3/00 ,  G02B26/08 ,  G02B26/10 ,  G06K7/10 ,  G02B7/182 ,  B06B1/02

CPC分类号： G02B26/10 ,  G02B26/085 ,  G06K7/10653

摘要： A second torsional vibrator having an outer frame and a second torsional spring is formed on the outer side of a first torsional vibrator having a pair of torsional springs and a plate member (reflection mirror), with a second torsional vibrator being fixed by the fixed part. The resonant frequency for the first torsional vibrator is set higher than that for the second torsional vibrator. The outer frame in the second torsional vibrator is driven substantially at the resonant frequency of the first torsional vibrator by an electromagnetic or electrostatic force. As a result, it becomes possible to obtain a stable and large scanning angle by using only a small driving force.

摘要翻译： 具有外框架和第二扭转弹簧的第二扭转振动器形成在具有一对扭转弹簧和板构件（反射镜）的第一扭转振动器的外侧上，第二扭转振动器由固定部分固定 。 第一扭转振动器的谐振频率被设定为高于第二扭转振动器的谐振频率。 第二扭转振动器中的外框架通过电磁或静电力基本上以第一扭转振动器的共振频率驱动。 结果，通过仅使用小的驱动力就能够获得稳定的大扫描角度。

公开(公告)号：US5739538A

公开(公告)日：1998-04-14

申请号：US689073

申请日：1996-07-30

申请人： Satoru Sakaue ,  Mutsumi Nagumo ,  Michihiko Tsuruoka

发明人： Satoru Sakaue ,  Mutsumi Nagumo ,  Michihiko Tsuruoka

IPC分类号： G01N21/61 ,  G01N21/37

CPC分类号： G01N21/37

摘要： A pneumatic infrared gas detector includes a pair of expansion chambers and a pair of pressure chambers, each of which is connected at one end thereof to the corresponding expansion chamber. Each of the pressure chambers is divided by a diaphragm into a first chamber connected to a corresponding expansion chamber, and a second chamber, such that the first chamber of one of the pair of pressure chambers is connected to the second chamber of the other of the pressure chambers through a first communication path, and such that the second chamber of the above-indicated one of the pressure chambers is connected to the first chamber of the other of the pressure chambers through a second communication path. A pair of pneumatic pressure detecting elements are provided each of which includes an electret film having one surface on which an electrode is formed, and an electrode plate disposed in opposed relationship with the electret film. The electret film is formed on a first side of a corresponding one of the diaphragms in each pressure chamber, and the electrode plate is supported and fixed at a position that is opposed to a second side of the corresponding diaphragm.

摘要翻译： 气动红外气体检测器包括一对膨胀室和一对压力室，每个压力室的一端连接到相应的膨胀室。 每个压力室由隔膜分隔成连接到相应的膨胀室的第一室和第二室，使得一对压力室中的一个的第一室连接到另一个的另一个的第二室 压力室通过第一连通路径，并且使得上述一个压力室中的第二腔室通过第二连通路径连接到另一个压力室的第一腔室。 提供一对气压检测元件，每个气动检测元件包括其中形成有电极的一个表面的驻极体膜以及与驻极体膜相对设置的电极板。 驻极体膜形成在每个压力室中的对应的一个膜片的第一侧上，并且电极板被支撑并固定在与相应隔膜的第二侧相对的位置。