Question 1

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) B) and C)
F) A) and C)

Question 2

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) A) and C)
F) None of the above

Question 3

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) All of the above
F) C) and D) C

Question 4

Impedance can be measured using

Accepted Answer

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

Question 5

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

Accepted Answer

A) True 
 B)False  False

Exam 2: Experimental Aspects

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

Correct Answer
verified

Faraday cage is used to

Correct Answer
verified

FFT of a time-domain signal would give

Correct Answer
verified
C

Impedance can be measured using

Correct Answer
verified
D

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

Correct Answer
verified
False

Exam 2: Experimental Aspects

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

Correct AnswerverifiedShow Answer

Faraday cage is used to

Correct AnswerverifiedShow Answer

FFT of a time-domain signal would give

Correct AnswerverifiedC

Impedance can be measured using

Correct AnswerverifiedD

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

Correct AnswerverifiedFalse

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified
D

Correct Answer
verified
False