A pneumatic controller for controlling a process advantageously reduces fluid consumption by providing a proportional adjustment to a feedback signal. The pneumatic controller comprises a pneumatic control stage, a process pressure detector, and a feedback proportioning device. The feedback proportioning device uses a feedback cantilever component to provide the proportional adjustment of the feedback signal, thereby reducing the fluid consumption of the pneumatic controller.
申请公布号
WO2008042861(A2)
申请公布日期
2008.04.10
申请号
WO2007US80106
申请日期
2007.10.01
申请人
FISHER CONTROLS INTERNATIONAL LLC;PESEK, ALEXANDER, C.;GASSMAN, GEORGE, W.