Dev Priya Product Instrumentation Incharge Interview Questions, Process, and Tips

Proportional is a term used in PID control. It determines the output based on the error between the setpoint and the process variable.

• Proportional gain is a constant that determines the output change for a given error.

• It is directly proportional to the error signal.

• A higher proportional gain results in a faster response but can lead to overshoot and instability.

• Proportional control is used in applications such as tempe

PID tuning is the process of adjusting the parameters of a proportional-integral-derivative controller to achieve optimal performance.

• PID stands for proportional-integral-derivative

• It is used to control a system's output based on its error signal

• Tuning involves adjusting the controller's parameters to achieve desired response

• Optimal tuning results in stable and responsive control of the system

• Examples include tuning th...read more

Better PID tuning leads to improved control performance and stability.

• Improved control performance and stability

• Reduced overshoot and settling time

• Better disturbance rejection

• Increased process efficiency and productivity

• Optimized energy consumption

• Prevention of equipment damage and wear

• Enhanced safety and reliability

• Examples: better temperature control in chemical reactors, improved speed control in motors

Linear load of hydraulic press can be calculated by dividing the force applied by the area of the piston.

• Divide the force applied by the area of the piston to get the linear load.

• Linear load is measured in units of force per unit of length.

• The formula for calculating linear load is: Force / Piston Area.

• Linear load is an important parameter to monitor in hydraulic presses to ensure safe and efficient operation.

We check for any fluctuations or oscillations in the pressure gauge reading.

• Check for any sudden changes in the pressure reading

• Observe if the pressure reading is oscillating

• Ensure that the pressure reading is stable

• Check for any leaks or blockages in the system

• Verify that the pressure gauge is calibrated correctly