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1. 发明授权

US3728894A Fluidic gaging device 失效
标题翻译：流体吸收装置
公开(公告)号：US3728894A
公开(公告)日：1973-04-24
申请号：US3728894D
申请日：1971-04-02
申请人： GEN ELECTRIC
发明人： STERN H
IPC分类号： B65H63/06 , D01H5/38 , D01H13/22 , F15C1/00 , G01B13/08 , G01B13/20 , G01B13/04
CPC分类号： G01B13/20 , B65H63/067 , B65H2701/31 , D01H5/38 , D01H13/22 , F15C1/005 , G01B13/08
摘要： A fluidic gage having no moving mechanical parts is utilized for continuous monitoring of a particular parameter such as wire diameter, sliver density and object proximity. The gage comprises a bridge circuit including a pair of fluidic resistors having fixed resistances to fluid flow therethrough and a first fluidic variable resistor in three legs of the bridge circuit. A sensing head is connected in the fourth leg of the bridge circuit in fluid communication with the monitored material to function as a second fluidic variable resistor. The first variable resistor is preset to a predetermined resistance value corresponding to a desired value of the monitored parameter. Deviation from the desired value of the monitored parameter causes a linear change in fluid pressure at the input to the sensing head thereby causing an unbalanced condition of the bridge circuit and developing a pressurized fluid signal which may be utilized for operating a suitable readout device or initiating a control action.
摘要翻译：没有移动机械部件的流量计用于连续监测特定参数，例如线径，条子密度和物体接近度。量具包括桥电路，其包括一对具有流体流动的固定电阻的流体电阻器和桥接电路的三个支路中的第一流体可变电阻器。感测头连接在桥接电路的第四支路中，与被监测的材料流体连通，用作第二流体可变电阻器。第一可变电阻器预设为对应于所监视参数的期望值的预定电阻值。与监测参数的期望值的偏差导致在感测头的输入处的流体压力的线性变化，从而导致桥接电路的不平衡状况并且开发可用于操作合适的读出装置或启动的加压流体信号控制动作。

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