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TDC-3S-8A TDC-3S-10A TDC-4S-15A TDC-4S-20A TDC-4S-25A
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一般结构电极在测量电导率5×10-6S/cm的蒸馏水时电阻值约为350k,电导率150×10-6S/cm的生活和工业用水约为15k,电导率1×10-6S/cm的盐水约为200,电极与液体电阻可用模拟量万用表在充满液体时分别测量每个电极端子与地间的电阻。 具有成本低,使用方便,灵活性大等优点,AT90S4433单片机一方面控制键盘及液晶显示电路,另一方面将反馈温度信进行A/D转换并产生控制信给输出控制逻辑,低压控制信经光电隔离后,放大输出至功率输出电路以取得功率输出。韩国星河SHN-DSC-DEO-U,SHN-DSC-DEO-V,SHN-DSC-DEO-W,SHN-DSC-DEO-X,SHN-DSC-DEO-Y,SHN-DSC-DEO-Z产品搜索
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RDD-3F-15A RDD-3F-20A RDD-3F-25A RDD-3F-32A RDD-3F-40A
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已认识到在许况下不可能得到湿度修正系数,在这样的情况下,标准参比大气条件只考虑温度和压力,通常认同的正常参比工作条件相同,4.4.2试验测量时环境条件的允许范围试验测量时环境条件的允许范围列于表1,任何试验期间允许的温度变化率是5℃/h。 PI控制对偏差较大时有效,而PD控制对偏差较小时有效[5],因此采用图2所示的控制策略,当偏差比较大的时候,希望系统调节参数中对控制上升时间占优的参数处于主导地位,当偏差比较小的时候,调节超调量的控制参数占有优势。韩国星河SHN-DSC-DEO-U,SHN-DSC-DEO-V,SHN-DSC-DEO-W,SHN-DSC-DEO-X,SHN-DSC-DEO-Y,SHN-DSC-DEO-Z产品搜索
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YAN-1F-15A YAN-1F-20A YAN-1F-25A YAN-1F-32A YAN-1F-40A
TAT-1S-15A TAT-1S-20A TAT-1S-25A
TAT-1F-15A TAT-1F-20A TAT-1F-25A
TAT-3F-15A TAT-3F-20A TAT-3F-25A
Y***-1S Y***-1F-15A Y***-1F-20A Y***-1F-25A
YTR-1F-15A YTR-1F-20A YTR-1F-25A YTR-1F-32A YTR-1F-40A
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YSG-1S-15A YSG-1S-20A YSG-1S-25A YSG-1S-32A YSG-1S-40A YSG-1S-50A
YSG-1F-15A YSG-1F-20A YSG-1F-25A YSG-1F-32A YSG-1F-40A
YSG-1F-50A YSG-1F-65A YSG-1F-80A YSG-1F-100A
YSC-1S-15A YSC-1S-20A YSC-1S-25A
STY-1S-15A STY-1S-20A STY-1S-25A STY-1S-32A STY-1S-40A STY-1S-50A
STY-1F-15A STY-1F-20A STY-1F-25A STY-1F-32A STY-1F-40A
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本文提出一种基于声学传感器的温度场重建方法,并对该方法在matlab环境下作了实验,为将声学传感器用于温度场检测作出了有益的探索,图1测量区域示意图用声学法重建工业锅炉某一截面温度场,其重建区域及测量系统分布如图1所示。 如水位降至A线时,虽高出口顶端,但高处不多,还会在C处产生旋涡,将水位表面空气卷入形成气泡,使显示晃动,若水位降到B,测量管将不满管,建议如图虚线所示装一弯头,扩大水池有效容量,气泡的机会,弥补原设计的不足。韩国星河SHN-DSC-DEO-U,SHN-DSC-DEO-V,SHN-DSC-DEO-W,SHN-DSC-DEO-X,SHN-DSC-DEO-Y,SHN-DSC-DEO-Z产品搜索