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Electromagnetic flow meter, electromagnetic flow meter system, converter for electromagnetic flowmeter

机译:电磁流量计,电磁流量计系统,电磁流量计转换器

摘要

The limitation on the consumed current is removed to enable highly accurate flow detection. Provided are a current output circuit (16) for adjusting the current value of an output current Io in response to the flow of the target flow for detection calculated by a calculation means; a current/voltage conversion means which is connected to the current output circuit (16) and can convert the current value of the current output circuit (16) to a voltage and externally output the voltage; an amplifier mode switching means (33) which can output an amplifier mode indication signal SAP to the current output circuit (16) and the current/voltage conversion means, said signal SAP indicating switching the normal mode in which the output voltage corresponding to the flow rate is taken as the detection signal and output from the current/voltage conversion means to the transmission lines DL, and the amplifier mode which adds the specified added current to the output current Io for output; and a voltage removal circuit for removing the added voltage component corresponding to the added current from the output voltage when the current/voltage conversion means receives the amplifier mode indication signal SAP from the amplifier mode switching means(33).
机译:消除了对消耗电流的限制,以实现高精度的流量检测。设置有电流输出电路(16),该电流输出电路(16)根据由运算单元计算出的检测对象流的流量来调整输出电流Io的电流值。电流/电压转换装置,其连接到电流输出电路(16),并且可以将电流输出电路(16)的电流值转换为电压并从外部输出电压;放大器模式切换装置(33),其可以将放大器模式指示信号SAP输出到电流输出电路(16)和电流/电压转换装置,所述信号SAP指示切换正常模式,其中输出电压对应于电流速率作为检测信号,并从电流/电压转换装置输出到传输线DL,并且放大器模式将指定的相加电流与输出电流Io相加以进行输出。电压去除电路,当电流/电压转换装置从放大器模式切换装置(33)接收到放大器模式指示信号SAP时,从输出电压中去除与增加的电流相对应的增加的电压分量。

著录项

  • 公开/公告号JP5379937B2

    专利类型

  • 公开/公告日2013-12-25

    原文格式PDF

  • 申请/专利权人 株式会社キーエンス;

    申请/专利号JP20100517860

  • 发明设计人 栖原 正明;名越 敬祐;

    申请日2009-06-10

  • 分类号G01F1/60;

  • 国家 JP

  • 入库时间 2022-08-21 16:10:59

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