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    • 7. 发明授权
    • Sewing machine with reference speed correction by dimensional ratio
between motor- and armshaft-pulleys
    • 缝纫机通过马达与臂轴皮带轮之间的尺寸比进行基准速度校正
    • US4676180A
    • 1987-06-30
    • US861720
    • 1986-05-12
    • Shigeo NekiKenichi OharaNobuho ShibataTakashi Dohi
    • Shigeo NekiKenichi OharaNobuho ShibataTakashi Dohi
    • G05B19/416D05B69/18
    • G05B19/416G05B2219/41358
    • A sewing machine comprises a multiplier for multiplying an operator-controlled variable reference speed value by a multiplying factor, a tachogenerator for generating speed-related pulses at a rate proportional to the speed of rotation of a motor pulley and an angular position detector for generating a position pulse in response to a predetermined position of an armshaft pulley which is coupled by a belt to the motor pulley. A ratio detector is provided for counting the speed-related pulses present during the interval between successive ones of the position pulse to generate a count as a representation of the diameter of the armshaft pulley and deriving a ratio value between the count and a value representative of the diameter of the motor pulley. The ratio value is applied to the multiplier as the multiplying factor to alter the reference speed value. A speed control circuit is responsive to the speed-related pulses for deriving an actual motor speed value and controls the speed of the motor in accordance with a difference between the actual motor speed value and the altered reference speed value.
    • 一种缝纫机包括乘法器,用于将操作者控制的可变参考速度值乘以乘数,转速发生器,用于以与马达皮带轮的旋转速度成比例的速率产生速度相关脉冲;以及角位置检测器,用于产生 响应于通过带与电动机皮带轮联接的臂轴滑轮的预定位置的位置脉冲。 提供了一种比率检测器,用于对连续的位置脉冲之间的间隔期间存在的速度相关脉冲进行计数,以产生计数作为臂轴皮带轮的直径的表示,并导出计数与代表 电机皮带轮的直径。 比值被用作乘法器,作为改变参考速度值的乘法因子。 速度控制电路响应于速度相关的脉冲以导出实际的电动机速度值,并且根据实际电动机速度值和改变的参考速度值之间的差来控制电动机的速度。
    • 9. 发明授权
    • Ultrasonic endoscope
    • 超声内窥镜
    • US06488632B2
    • 2002-12-03
    • US09987314
    • 2001-11-14
    • Kenichi OharaToshiyuki Hashiyama
    • Kenichi OharaToshiyuki Hashiyama
    • A61B800
    • A61B1/00082A61B1/0051A61B1/018A61B1/05A61B8/12A61B8/4416
    • An ultrasonic endoscope has a bending portion, an ultrasonic probe, and a flexible circuit board. The bending portion, connected to the point of a flexible tube, bends by remote control. The ultrasonic probe has a plurality of ultrasonic wave vibrators, which are arranged circumferentially, and send ultrasonic waves radially and receive echoes of the ultrasonic waves. The flexible circuit board, which transmits signals associated with the ultrasonic waves and the echoes, is constructed of a plurality of flexible circuit board strips in the bending portion so as to allow a bending motion. The plurality of ultrasonic wave coaxial lines, which are provided in the flexible tube to form an ultrasonic wave coaxial cable and are connected to the plurality of flexible circuit board strips, are loose and flexible in a given range.
    • 超声波内窥镜具有弯曲部,超声波探头和柔性电路基板。 连接到柔性管的点的弯曲部分通过遥控器弯曲。 超声波探头具有周向配置的多个超声波振子,并且发射超声波并接收超声波的回波。 发送与超声波和回波相关联的信号的柔性电路板由弯曲部分中的多个柔性电路板条构成,以允许弯曲运动。 设置在柔性管中以形成超声波同轴电缆并且连接到多个柔性电路板条的多条超声波同轴线在给定范围内是松散和柔性的。