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Phase Cut or Phase Chop control

Hi Group! Wondering if anyone can give a brief explanation of "phase cut" or "phase chopping" control. Just ran across...
2 comments posted 19yrs
posted by fxallen
2 comments posted 19yrs posted by fxallen

Recommendations on an AGV supplier.

Does anyone have recommendations for an AGV supplier? The system will need to interface to AB and Siemens controllers,...
0 comments posted 19yrs
posted by tonytn36sp
0 comments posted 19yrs posted by tonytn36sp

Pole-zero pair, measurement

A plant has a second order pole near a second order zero, with the same Q, giving a peak near a notch for the module of...
0 comments posted 19yrs
posted by Jean-Pierre.COULON
0 comments posted 19yrs posted by Jean-Pierre.COULON

a Robust Control Problem

I have a robust control problem. I have a system with parametric uncertainty. I made its generalized plant with its unc...
1 comments posted 19yrs
posted by Saberbf
1 comments posted 19yrs posted by Saberbf

FE-Sizer Update - Release 3.32

Do you perform, maintain, or review/check orifice calculations for your production plant's orifice flow meters or for p...
0 comments posted 19yrs
posted by jmilling
0 comments posted 19yrs posted by jmilling

Competition

Just an idea for the new year If we could (as a group) assemble a set of notoriously difficult models of systems - real...
31 comments posted 19yrs
posted by a
31 comments posted 19yrs posted by a

tuning formula for PT1 control path

I have a control path with PT1 behavior. However all the formulas for controller tuning (Ziegler-Nichols, Chien-Hrones-...
3 comments posted 19yrs
posted by csiko
3 comments posted 19yrs posted by csiko

KSC CAMAC/VXI OpenVMS drivers Public Release

Kinetic Systems Corporation (www.kscorp.com) produced the following PCI devices: 2115, 2915, and 2962. The 2115 and 291...
0 comments posted 19yrs
posted by elakia
0 comments posted 19yrs posted by elakia

how engineers control power station?

how engineers control powerstations and nuclear reactors ? what kinds of control systems are used in nuclear reactors?
32 comments posted 19yrs
posted by kurdistan.astronomy
32 comments posted 19yrs posted by kurdistan.astronomy

Properties of linear system transfer function

Hello, Consider a linear transfer function with N-1 real and negative poles and N real and negative zeros factorized in...
7 comments posted 19yrs
posted by anders_noSPAM
7 comments posted 19yrs posted by anders_noSPAM

Job offer: Control Engineer in Chicago

Here are the qualifications for the position: The ideal candidate will have 1-2 years experience in processes and proce...
0 comments posted 19yrs
posted by derek_stein
0 comments posted 19yrs posted by derek_stein

Variable Speed drive with ControlNet interface

Hi all, As far as I am aware there is only Rockwell drives with ControlNet interface. Has anyone else used any other VS...
6 comments posted 19yrs
posted by Raj_Sreenevasan
6 comments posted 19yrs posted by Raj_Sreenevasan

WinCC Flex Passwords

Can anyone help me here? what is the default password to log onto "Admin" user account when in runtime ? WinCC Flexible...
1 comments posted 19yrs
posted by slip
1 comments posted 19yrs posted by slip

Phase Margin Puzzler

Hello All, I have a small query relating to stability and phase margin which has just struck me. When a compensator is...
6 comments posted 19yrs
posted by andrewpreece
6 comments posted 19yrs posted by andrewpreece