Instrumentation, Measurement, and Control

Question 1

Instrumentation, Measurement, and Control

How can you determine the stability of a transfer function?

Answer 1

Determine whether it is under or over damped.

Also, first-order systems are always stable.

Question 2

Instrumentation, Measurement, and Control

What does underdamped mean?

Answer 2

It means a transfer function is “stable” and that the damping ratio is less than 1.
𝜁 < 1

Question 3

Instrumentation, Measurement, and Control

What does overdamped mean?

Answer 3

It means a transfer function is “stable” and that the damping ratio is greater than 1.
𝜁 > 1

Question 4

Instrumentation, Measurement, and Control

What is the integral of dx/x?

Answer 4

ln|x|

Question 5

Instrumentation, Measurement, and Control

What’s the integral of e^x?

Answer 5

e^x + C

Question 6

Instrumentation, Measurement, and Control

What is a thermocouple?
(TC)?

Answer 6

A device using the Seebeck effect to sense temperature differences. The voltage output is the difference in temp bertween the measured point and the reference junction.