| 摘要 |
<p>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 such as a relay, a process pressure detector, and a rack-and-pinion feedback assembly. The a rack-and-pinion feedback assembly provides the proportional adjustment of the feedback signal, thereby reducing the fluid consumption of the pneumatic controller.</p> |
