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    • 82. 发明授权
    • Optical interferometric angular rate meter with a self-diagnostic
capability
    • 具有自我诊断能力的光学干涉角速度计
    • US5386290A
    • 1995-01-31
    • US51995
    • 1993-04-26
    • Kenichi Okada
    • Kenichi Okada
    • G01C19/72
    • G01C19/72
    • Light is supplied as clockwise and counterclockwise light beams to both ends of an optical fiber coil, the clockwise and counterclockwise light beams having propagated through the optical fiber coil interfere with each other, and the interference light is converted by a photodetector into an electrical signal. Both light beams are phase modulated by a phase modulator and the phase modulation frequency component is synchronously detected by a synchronous detector, from which a signal corresponding to an input angular rate is output. A reference signal generator generates a first reference signal of an odd harmonic frequency of the phase modulation frequency and a second reference signal of an even harmonic frequency of the phase modulation frequency. A change-over switch responds to a diagnosis instruction signal to selectively supply either one of the first and second reference signals to the synchronous detector. The synchronously detected output obtained with the second reference signal is output as a self-diagnosis signal, and a diagnosis circuit makes a diagnosis by determining whether the level or frequency of the self-diagnosis signal is within a predetermined range.
    • 光作为顺时针和逆时针光束被提供给光纤线圈的两端,传播通过光纤线圈的顺时针和逆时针光束相互干扰,并且干涉光被光电检测器转换成电信号。 两个光束被相位调制器相位调制,并且相位调制频率分量由同步检波器同步检测,从该同步检波器输出对应于输入角速率的信号。 参考信号发生器产生相位调制频率的奇次谐波频率的第一参考信号和相位调制频率的偶次谐波频率的第二参考信号。 切换开关响应于诊断指令信号,以选择性地将第一和第二参考信号中的任一个提供给同步检测器。 输出用第二参考信号获得的同步检测输出作为自诊断信号,并且诊断电路通过确定自诊断信号的电平或频率是否在预定范围内进行诊断。
    • 85. 发明授权
    • Method and apparatus for increasing thickness of tubular member
    • 增加管状部件厚度的方法和装置
    • US4625533A
    • 1986-12-02
    • US599471
    • 1984-04-12
    • Kenichi OkadaHiroshi AsaoHideo Yonemura
    • Kenichi OkadaHiroshi AsaoHideo Yonemura
    • B21C37/16B21J5/08B21J9/08B60G21/055B21K21/08
    • B60G21/0551B21C37/16B21J5/08B21J9/08B60G2204/1222B60G2204/44B60G2204/45B60G2206/427
    • A method and apparatus for increasing a thickness of a tubular member which ensures a uniform thickness increase of the tubular member and a reduction of an increase in a thickness on an inner diameter side of the tubular member. A portion of the tubular member is subjected to upsetting by applying thereto a compressive force in an axial direction of the tubular member, while the portion is being heated locally and progressively so that a surface layer of the portion of the tubular member reaches a high temperature and a thermal gradient is generated between inner and outer diameter portions of the tubular member. A loading arrangement is provided which is adapted to apply a compressive force in the tubular member in an axial direction thereof, with an annular heater being arranged around an outer circumference of the tubular member. The annular heater is capable of being moved in an axial direction of the tubular member and a control device is provided for controlling a temperature of the heater.
    • 一种用于增加管状构件的厚度的方法和装置,其确保管状构件的均匀厚度增加和减小管状构件的内径侧上的厚度增加。 管状构件的一部分通过向管状构件的轴向施加压缩力而受到镦锻,同时部分被局部和逐渐加热,使得管状构件的该部分的表面层达到高温 并且在管状构件的内径部分和外径部分之间产生热梯度。 提供了一种装载装置,其适于在管状构件的轴向方向上施加压缩力,环形加热器围绕管状构件的外周布置。 环形加热器能够沿着管状构件的轴向移动,并且提供控制装置来控制加热器的温度。
    • 87. 发明授权
    • Millimeter-wave band radio transceiver device
    • 毫米波段无线电收发器
    • US08971389B2
    • 2015-03-03
    • US13985657
    • 2011-02-17
    • Kenichi OkadaAkira Matsuzawa
    • Kenichi OkadaAkira Matsuzawa
    • H04B1/38H04L5/16H04L25/08H03L7/24H04B1/40H03B5/12H03B27/00
    • H04L25/08H03B5/1212H03B5/1228H03B5/1253H03B27/00H03L7/24H04B1/40
    • Provided is a millimeter wavelength range transceiver device which can improve phase noise characteristics and which can also independently calibrate each respective local oscillator of a transmission unit and a reception unit. This millimeter wavelength range transceiver device comprises a transmission unit (10), a reception unit (20), and a reference frequency signal generator (30). The transmission unit (10) comprises a transmission-use local oscillator (11) comprising an injection-locked oscillator, a transmission-use mixer (12) for mixing the signal from the transmission-use local oscillator and a transmission baseband signal, and a transmission-use amplifier (13) for amplifying the signal from the transmission-use mixer to a transmission-use antenna (15). The reception unit (20) comprises a reception-use amplifier (25) for amplifying a signal from a reception-use antenna (24), a reception-use local oscillator (22) comprising an injection-locked oscillator, and a reception-use mixer (23) for mixing the signal from the reception-use local oscillator and the signal from the reception-use amplifier in order to output a reception baseband signal. A reference frequency signal generator (30) injects a reference frequency signal into the transmission-and-reception-use local oscillators (11 and 22).
    • 提供了一种毫米波长范围收发器装置,其可以改善相位噪声特性,并且还可以独立地校准发送单元和接收单元的每个相应的本地振荡器。 该毫米波长范围的收发器装置包括传输单元(10),接收单元(20)和参考频率信号发生器(30)。 发送单元(10)包括:发送用本地振荡器(11),包括注入锁定振荡器,用于混合来自发送用本地振荡器的信号和发送基带信号的发送使用混合器(12) 传输用放大器(13),用于将来自传输用混合器的信号放大到传输用天线(15)。 接收单元(20)包括用于放大来自接收用天线(24)的信号的接收用放大器(25),包括注入锁定振荡器的接收用本地振荡器(22)和接收使用天线 混合器(23),用于混合来自接收用本地振荡器的信号和来自接收用放大器的信号,以输出接收基带信号。 参考频率信号发生器(30)将参考频率信号注入到发送和接收用的本地振荡器(11和22)中。