2006-12-20 15:20:06 · 3 answers · asked by M H G 1 in Science & Mathematics ➔ Engineering
When tuned properly (including actuator response) a PID loop will provide stable flow control
2006-12-20 18:07:11 · answer #1 · answered by MarkG 7 · 0⤊ 0⤋
A PID controller is a good fit for controlling a flow rate. The other guy who answered the question who said your question wasn't a question, obviously doesn't understand what you are asking.
The PID controller can do a swell job in reducing/eliminating error. It all depends on restrictions for rise time, settling time, etc.
You can generally use a PID controller when you don't need a PLC.
2006-12-21 12:50:07 · answer #2 · answered by Eric D 2 · 1⤊ 0⤋
This is hardly a question. PID in process control generally refers to a "P&ID" or Process and Instrumentation Diagram.
How to regulate flow? For liquid flow, a control valve is usually the correct way to go. These valves would be shown on the P&ID. What you need in connection with them is a flow meter to measure flow and this tells the valve whats going on and the valve will adjust as needed. A PLC is needed to interface the equipment and provide direction.
2006-12-21 02:10:29 · answer #3 · answered by Cycleogical 2 · 0⤊ 1⤋