1. By Finn Aakre Haugen (finn.haugen@usn.no)
Course IIA1117 Control Engineering Fall 2018
Ratio control
By Finn Aakre Haugen
USN. IIA1117 Control Engineering. Haugen

2. Purpose: To maintain a specified ratio of two flows:
F2 = K*F1 2
USN. IIA1117 Control Engineering. Haugen

3. Functionally equivalent to the left diagram, but simpler outline:3
USN. IIA1117 Control Engineering. Haugen

4. USN. IIA1117 Control Engineering. Haugen. 2018.
Ratio control can be part of a product quality and production rate control system:
USN. IIA1117 Control Engineering. Haugen

5. USN. IIA1117 Control Engineering. Haugen. 2018.
Example: Production of water flow with specified flow rate and temperature
Simulator
USN. IIA1117 Control Engineering. Haugen