Question 1

FFT of a time-domain signal would give

Accepted Answer

A)   magnitude only
B)   phase only
C)   both magnitude and phase
D)   signal to noise ratioE) None of the above
F) B) and D) C

Question 2

The main purpose of using multi-sine instead of single sine is to ensure

Accepted Answer

A)   linearity
B)   causality
C)   stability
D)   shorter measurement timeE) A) and D)
F) A) and C)

Question 3

Impedance can be measured using

Accepted Answer

A)   Oscilloscope
B)   Lock-in amplifier
C)   FFT analyzer
D)   all of the aboveE) C) and D)
F) All of the above D

Question 4

Faraday cage is used to

Accepted Answer

A)   minimize the nonlinearity effects
B)   decrease measurement time
C)   minimize the effect of external noise
D)   minimize the instabilitiesE) C) and D)
F) B) and C)

Question 5

Lock-in amplifiers can be used to simultaneously obtain all harmonics.

Accepted Answer

A) True 
 B)False  False

Exam 2: Experimental Aspects

FFT of a time-domain signal would give

Correct Answer
verified
C

The main purpose of using multi-sine instead of single sine is to ensure

Correct Answer
verified

Impedance can be measured using

Correct Answer
verified
D

Faraday cage is used to

Correct Answer
verified

Lock-in amplifiers can be used to simultaneously obtain all harmonics.

Correct Answer
verified
False

Exam 2: Experimental Aspects

FFT of a time-domain signal would give

Correct AnswerverifiedC

The main purpose of using multi-sine instead of single sine is to ensure

Correct AnswerverifiedShow Answer

Impedance can be measured using

Correct AnswerverifiedD

Faraday cage is used to

Correct AnswerverifiedShow Answer

Lock-in amplifiers can be used to simultaneously obtain all harmonics.

Correct AnswerverifiedFalse

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified
False