发明名称 |
Diagnostic device and method for pressure regulator |
摘要 |
A diagnostic device and method for an intelligent pressure regulator which maintains a fluid in a process at a predetermined pressure. The regulator includes an electronic controller which enhances regulator performance and provides self-diagnostics and communications capabilities. The electronic controller includes a pressure sensor which provides a signal indicating the pressure of the fluid being controlled, an adjusting pressure for adjusting the position of a throttling element; and a PID controller which receives the signal indicating the pressure of the fluid being controlled and applies the adjusting pressure to the actuator in response to the signal.
|
申请公布号 |
US6035878(A) |
申请公布日期 |
2000.03.14 |
申请号 |
US19970935176 |
申请日期 |
1997.09.22 |
申请人 |
FISHER CONTROLS INTERNATIONAL, INC. |
发明人 |
ADAMS, PAUL R.;GABEL, KARL J.;ROPER, DANIEL G. |
分类号 |
G01L9/00;F16K31/128;F16K31/365;F16K37/00;G05D16/20;(IPC1-7):G05D16/02 |
主分类号 |
G01L9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|