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    • 12. 发明专利
    • Separation parallel type antenna for searching burried object
    • 用于搜索BURRIED对象的分离并行型天线
    • JPS6175607A
    • 1986-04-18
    • JP19805884
    • 1984-09-21
    • Tokyo Gas Co Ltd
    • TANAKA HIROAKIMATSUURA MASAYUKIFURUSAWA HAJIMETAI HIDEO
    • H01Q19/00G01S7/02G01S7/03H01Q9/28H01Q11/04H01Q21/00H01Q21/28
    • PURPOSE: To clarify a reflection echo from an object by decreasing the side gain (direction gain of both transmissionand reception antenna) of both the transmissionand receptionantenna so as to improve the directivity.
      CONSTITUTION: A ferrite 3 mounted on a n antenna element of both triangle dipole type transmission and reception antennas 1, 2 is made of a specific size sintered plate and mounted only at a position near a feeding part 6 for light weight. A transmission antenna 1 and a resistance wire R-1 are placed in the same plane and a reception antenna 2 is placed in the right direction. The electric field in the direction of the reception antenna 2 depends on an output of the transmission antenna 1, a self impedance Z
      22 of the resistance wire R-1 and a mutual impedance Z
      12 between the transmission antenna 1 and the resis tance wire R-1 and it is required for the provision of the shield effect in the direction of the reception antenna 1 to provide nearly the same value to the Z
      12 and Z
      22 (including their signs).
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过减少传输和接收天线的侧向增益(发送和接收天线的方向增益)来清楚对象的反射回波,从而提高方向性。 构成:安装在两个三角形偶极子型发送和接收天线1,2的n个天线元件上的铁氧体3由特定尺寸的烧结板制成,并且仅安装在靠近馈电部分6的位置以获得轻量级。 发送天线1和电阻线R-1被放置在相同的平面中,并且接收天线2被放置在正确的方向。 接收天线2的方向上的电场取决于发送天线1的输出,电阻线R-1的自身阻抗Z22和发送天线1和电阻线R-1之间的相互阻抗Z12 并且需要在接收天线1的方向上提供屏蔽效应,以向Z12和Z22(包括它们的符号)提供几乎相同的值。
    • 15. 发明专利
    • Method for inspecting leakage of gas circuit breaker
    • 检查气体断路器泄漏的方法
    • JPS60192235A
    • 1985-09-30
    • JP4786484
    • 1984-03-13
    • Tokyo Gas Co Ltd
    • TANAKA HIROAKISAKURAI KOUZOUMATSUURA MASAYUKIUEKI TAKASHITAGUCHI FUJITAKA
    • F17D5/06G01M3/24
    • G01M3/24
    • PURPOSE:To inspect whether a gas circuit breaker is leaked or not by emitting a sound wave from a sound wave emitter under the gas circuit breaking state and receiving the sound wave by a sound wave receiver at another side. CONSTITUTION:The sound wave emitter 3 and the sound wave receiver 4 are provided at one side and another side of an upstream side (a) or a downstream side (b) of a gas flow path 2 respectively across a gas circuit breaking part of the gas circuit breaker 1 such as gas emergency trip valve. After setting the breaker 1 to the gas circuit breaking state, the sound wave is emitted from the emitter 3, and the presence and absence of the leakage of the gas circuit breaking part is inspected by presence and absence of the received sound wave in the receiver 4. In this way, 200cc/min and 3,000cc/min leakage quantities can be detected in case 500Hz-4kHz and 40kHz sound wave frequencies respectively. Consequently, the leakage can be inspected easily by very simple machine and in a short time.
    • 目的:通过在气体断路状态下从声波发射器发出声波并通过另一侧的声波接收器接收声波来检查气体断路器是否泄漏。 构成:声波发射器3和声波接收器4分别设置在气体流路2的上游侧(a)或下游侧(b)的一侧和另一侧, 气体断路器1例如气体紧急跳闸阀。 在将断路器1设定为气体断路状态之后,从发射极3发出声波,并且通过接收到的声波的存在和不存在来检查气体断路部的泄漏的有无。 以这种方式,分别在500Hz-4kHz和40kHz声波频率的情况下可以检测到200cc / min和3,000cc / min的泄漏量。 因此,可以通过非常简单的机器在短时间内容易地检查泄漏。