Question

In a control system an error detector
1. Detects the error and signal out an alarm
2. Detects the errors of the system
3. Produces an error signal as actual difference of value and desired value of output
4. Any of the above

Answer 1

Correct Answer - Option 3 : Produces an error signal as actual difference of value and desired value of output

• In control systems, error detectors are used to sense and measure any error, which may occur due to the difference between the actual output and the desired output.
• The input level is held constant as reference input corresponding to the magnitude of the desired output.