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WYNG1C10Z40,WYNG1C15Z40,WYNG1C25Z40,WYNG1***0Z40,WYNG1C50Z40,WYNG1C60Z40
WYNG1C80Z40,WY3G3C10Z4,WY3G3C10R4,WY3G3C20Z4,WY3G3C20R4,WY3G3C30Z4,WY3G3C30R4
WY3G3***0Z4,WY3G3***0R4,WY3G3C50Z4,WY3G3C50R4,WY3G3C60Z4,WY3G3C60R4,WY3G3C80Z4
WY3G3C80R4,WY3G3C10Z40,WY3G3C10R40,WY3G3C20Z40,WY3G3C20R40,WY3G3C30Z40,WY3G3C30R40
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下面以DDZ-Ⅲ差压变送器为例,孔板流量测量系统的信转换如图1所示,图1信转换其中第Ⅰ象限是孔板区,又可称乘方区,从孔板中流过的流体,在孔板的两侧产生了差压,即增量产生了增量,是信的次转换,该转换是非线性的。 从内锥和孔板的压损公式及其曲线图(如图2所示)看,可以定量地得出内锥的压损是小一点,但差别不大,内锥流量计上游需0~3D的直管段,下游需0~1D的直管段,或者说包括流量计本体在内整个计量段的长度在7D之内;标准孔板流量计上游需10D~36D的直管段,下游需4D~7D的直管段。FINE MECHATRONICS/FINE TRON,FCM2-2TF,FCM3-1KG,FCM3-5KG,FCM3-10KG FCM4-50KG,FCM4-100KG,FCM4-200KG折扣清仓!
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WYN3G3C80Z40,WYN3G3C80R40,WY3H3C10Z4,WY3H3C10R4,WY3H3C20Z4,WY3H3C20R4,WY3H3C30Z4,WY3H3C30R4,
将两个传感器变化的信调制在其幅,,BPF输出的调幅波经同步调制解调器解调后,变成全波整流信,经低通滤波器平均后,可以得到与两个传感器信差成正比的电压信,设计完成的电路可以明显检测到约0.2的相对电容变化量。 电磁流量计地与输出端子之间主电源电压,一次装置与二次装置接地连接交流电流,串联,杂散电流的影响试验a)主电源共模电压影响试验(电压施加在一次装置与二次装置接地之间)b)中线与一次装置接地之,应进行电压与主电源电压同相和正交两个系列的试验。FINE MECHATRONICS/FINE TRON,FCM2-2TF,FCM3-1KG,FCM3-5KG,FCM3-10KG FCM4-50KG,FCM4-100KG,FCM4-200KG折扣清仓!
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电压-温度特性如图3所示,由图3可见,10℃-50℃间电压变化基本为线性,线性失真度小于3%,改变和U可以曲线的线性度和值域范围,图3电压-温度特***1.3功率输出模块系统被控加热器H的功率可达12kW。 直管段不足,这些原因主要引起流量测量值与实际不符,有时也会出现输出晃动,上海某水厂两根输水管各用二台串联DN1400仪表计量出厂成品水,分别由发送方(水厂)和接收方掌握,台传感器上游离全开蝶阀距离约5m与下游第2台传感器相距约2.5m。FINE MECHATRONICS/FINE TRON,FCM2-2TF,FCM3-1KG,FCM3-5KG,FCM3-10KG FCM4-50KG,FCM4-100KG,FCM4-200KG折扣清仓!
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