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公开(公告)号:US4454767A
公开(公告)日:1984-06-19
申请号:US246768
申请日:1981-03-23
IPC分类号: G01F1/66
CPC分类号: G01F1/662
摘要: An ultrasonic metering device having two ultrasonic transducers, each having an ultrasonic conversion element and a wedge for holding the conversion element, mounted on a pair of mounting members which are adapted to be mounted on a pipe in which a fluid to be measured flows. The mounting members clamp the pipe with first end portions of the mounting members being hingedly coupled to each other. Tightening means is provided for coupling opposite free end portions of the mounting members which have clamped the pipe to thereby fixedly secure the mounting members to the pipe.
摘要翻译: 一种具有两个超声波换能器的超声波计量装置,每个具有超声波转换元件和用于保持转换元件的楔形件,安装在一对安装构件上,该对安装构件适于安装在待测流体流动的管道上。 安装构件夹紧管道,其中安装构件的第一端部彼此铰接地联接。 提供了紧固装置,用于联接安装构件的相对的自由端部分,其夹紧管道,从而将安装构件固定地固定到管道上。
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公开(公告)号:US4374477A
公开(公告)日:1983-02-22
申请号:US247032
申请日:1981-03-24
申请人: Akira Kikuchi , Akio Hagiya , Kazuteru Shinkai , Masaru Kohno , Kiyoshi Saito
发明人: Akira Kikuchi , Akio Hagiya , Kazuteru Shinkai , Masaru Kohno , Kiyoshi Saito
CPC分类号: G01F1/667 , G01N2291/02836
摘要: An ultrasonic measuring device for measuring the fluid flow of a high temperature fluid in a conduit. Ultrasonic transducers are mounted on first and second frames which have end portions hingedly coupled to one another. A tightening device at the other ends of the frames are used to secure the frames around the conduit carrying the fluid to be measured. Lead wires extend through hollow pipes between the ultrasonic transducers and connecting terminals at the outward ends thereof. Heat radiating fins may be provided at the outward ends of the pipes. With this construction, the outward ends of the pipes are at room temperature so that ordinary coaxial cables may be joined to the connecting terminals.
摘要翻译: 一种用于测量导管中高温流体的流体流动的超声波测量装置。 超声换能器安装在第一和第二框架上,该第一和第二框架具有彼此铰接地连接的端部部分。 在框架的另一端处的紧固装置用于将框架固定在承载要测量的流体的管道周围。 引线延伸穿过超声波换能器和连接端子之间的中空管。 散热翅片可以设置在管子的外端。 通过这种结构,管子的外端处于室温,以便普通的同轴电缆可以连接到连接端子。
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公开(公告)号:US4271708A
公开(公告)日:1981-06-09
申请号:US35467
申请日:1979-05-03
申请人: Masaru Kohno , Yukio Nakagawa
发明人: Masaru Kohno , Yukio Nakagawa
IPC分类号: G01F1/66
CPC分类号: G01F1/667
摘要: An ultrasonic measuring apparatus of the type having a pair of transducers disposed oppositely on a pipe through which a fluid to be measured flows and which are so controlled alternately as to convert an input electrical signal to an acoustic signal and to convert a received acoustic signal to a received electrical signal. The apparatus includes a time difference detecting means for receiving an output signal from a delay means and the received electrical signal for detecting a time difference between a delayed counting time obtained from the delay means and a propagating time required for an ultrasonic wave to propagate through the fluid to be measured. Comparing means are provided for comparing a voltage signal corresponding to the time difference with first and second set voltages and monitoring means receiving the comparison result from the comparing means for judging whether the fluid flow is propagated in the pipe in a normal condition or in an abnormal condition. The present invention ensures a quick detection of abnormal propagation of the ultrasonic wave in the pipe and obtains a correct measurement values without misjudgement.
摘要翻译: 一种具有一对换能器的超声波测量装置,所述一对换能器相对设置在待测量的流体流动的管道上,并且被交替地控制,以将输入的电信号转换成声学信号,并将接收的声学信号转换为 接收到的电信号。 该装置包括时间差检测装置,用于接收来自延迟装置的输出信号和接收的电信号,用于检测从延迟装置获得的延迟计数时间与超声波传播通过的延迟时间之间的时间差 要测量的流体 提供比较装置,用于将与时间差相对应的电压信号与第一和第二设定电压进行比较,监视装置从比较装置接收比较结果,用于判断流体流是否在正常状态或异常情况下在管道中传播 条件。 本发明可以快速检测超声波在管道中的异常传播,并获得正确的测量值而不会产生误判。
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公开(公告)号:US4183244A
公开(公告)日:1980-01-15
申请号:US928322
申请日:1978-07-26
申请人: Masaru Kohno , Yukio Nakagawa , Takeo Kada
发明人: Masaru Kohno , Yukio Nakagawa , Takeo Kada
CPC分类号: G01S15/582 , G01F1/667 , G01P5/247
摘要: In an ultrasonic fluid flow rate measuring apparatus of the type having a pair of electro-acoustical transducers disposed in respective up-stream and down-stream positions relative a fluid flow and the flow rate is obtained from the difference between the oscillation frequencies of first and second oscillation circuits, the present invention includes an abnormality monitoring circuit responsive to a signal H corresponding to the output of the receiving transducer for providing an output signal W when the signal H exceeds an abnormality monitoring voltage E.sub.1, a trigger circuit for providing an output signal Z to a time difference detection circuit when the signal H exceeds a set voltage E.sub.3 and for providing in response to a signal F an output signal Z to the time difference detection circuit when the signal H exceeds a set voltage E.sub.30, and a mistrigger detection circuit for providing the output signal F when the output signal W is present and when a signal R from the time difference circuit exceeds a set voltage E.sub.61. The present invention further includes a delay compensation circuit for delaying by a predetermined period of time the providing of an output signal from a counter to a delay element, the predetermined period of time being set in accordance with the output signal F of the mistrigger detection circuit.
摘要翻译: 在具有相对于流体流动分别设置在上游和下游位置的一对电声换能器的类型的超声流体流量测量装置中,流速是从第一和第二振荡频率之间的差异获得的 第二振荡电路,本发明包括异常监视电路,响应于当信号H超过异常监测电压E1时,用于提供输出信号W的与接收换能器的输出相对应的信号H;触发电路,用于提供输出信号 Z到信号H超过设定电压E3的时间差检测电路,并且当信号H超过设定电压E30时,响应于信号F向时差检测电路提供输出信号Z,以及错误触发检测电路 用于当存在输出信号W时以及当来自时差cir的信号R时提供输出信号F. 电流超过设定电压E61。 本发明还包括延迟补偿电路,用于在预定时间段内延迟从计数器向延迟元件提供输出信号,所述预定时间段根据烟囱检测电路的输出信号F来设定 。
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公开(公告)号:US4334431A
公开(公告)日:1982-06-15
申请号:US64820
申请日:1979-08-08
申请人: Masaru Kohno , Yukia Nakagawa , Takeo Kada , Gunzi Okawara
发明人: Masaru Kohno , Yukia Nakagawa , Takeo Kada , Gunzi Okawara
IPC分类号: G01B17/00 , G01B17/02 , G01F1/66 , G01F23/296 , G01H5/00 , G01N29/44 , G04F10/00 , G01N29/02
CPC分类号: G01B17/00 , G01F1/667 , G01F23/2962 , G01N2291/02836
摘要: By detecting the instant of a selected zero-crossing of a received ultrasonic signal rather than relying on the instant the amplitude of that received signal exceeds a predetermined reference amplitude in excess of zero, a transit-time measuring instrument can be realized which is free from the measurement errors normally arising from acoustic signal attenuation in the medium through which it passes.
摘要翻译: 通过检测所接收的超声波信号的所选过零的时刻,而不是依赖于接收信号的幅度超过超过零的预定参考幅度的瞬间,可以实现一个不需要的传输时间测量仪器 通常由其通过的介质中的声信号衰减引起的测量误差。
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公开(公告)号:USD586416S1
公开(公告)日:2009-02-10
申请号:US29290116
申请日:2007-10-23
申请人: Masaru Kohno
设计人: Masaru Kohno
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公开(公告)号:USD533612S1
公开(公告)日:2006-12-12
申请号:US29241455
申请日:2005-10-28
申请人: Masaru Kohno
设计人: Masaru Kohno
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公开(公告)号:USD528620S1
公开(公告)日:2006-09-19
申请号:US29218110
申请日:2004-11-29
申请人: Masaru Kohno
设计人: Masaru Kohno
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公开(公告)号:USD526372S1
公开(公告)日:2006-08-08
申请号:US29218105
申请日:2004-11-29
申请人: Masaru Kohno
设计人: Masaru Kohno
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公开(公告)号:USD654128S1
公开(公告)日:2012-02-14
申请号:US29385667
申请日:2011-02-17
申请人: Masaru Kohno
设计人: Masaru Kohno
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