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Meas 2021 July 18 Part1 Copia
University study material for Measurement in the Mechanical Engineering degree programme at Politecnico di Milano. The document covers: 8/7/2021 Meas 2021 July 18 Part1 https://forms.office.com/Pages/ResponsePage.aspx?id=K3EXCvNtXUKAjjCd8ope60_E5LGpsJVDo_abJAuvijNUNDBETjQ5MzcyOUtVRUFJQV… 1/12 Meas 2021 July 18 Part1 Every question can have more than a single good answer Ciao Luca, quando invierai il modulo, il
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University study material for Measurement in the Mechanical Engineering degree programme at Politecnico di Milano. The document covers: 8/7/2021 Meas 2021 July 18 Part1 https://forms.office.com/Pages/ResponsePage.aspx?id=K3EXCvNtXUKAjjCd8ope60_E5LGpsJVDo_abJAuvijNUNDBETjQ5MzcyOUtVRUFJQV… 1/12 Meas 2021 July 18 Part1 Every question can have more than a single good answer Ciao Luca, quando invierai il modulo, il
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8/7/2021 Meas 2021 July 18 Part1 https://forms.office.com/Pages/ResponsePage.aspx?id=K3EXCvNtXUKAjjCd8ope60_E5LGpsJVDo_abJAuvijNUNDBETjQ5MzcyOUtVRUFJQV… 1/12 Meas 2021 July 18 Part1 Every question can have more than a single good answer Ciao Luca, quando invierai il modulo, il proprietario potrà vedere il tuo nome e l'indirizzo di posta elettronica. 1 The FT of a real odd function is (2 punti) An imaginary odd function A complex function A real odd function An imaginary odd function An imaginary even function 2 Let’s consider y: (4 punti) 8/7/2021 Meas 2021 July 18 Part1 https://forms.office.com/Pages/ResponsePage.aspx?id=K3EXCvNtXUKAjjCd8ope60_E5LGpsJVDo_abJAuvijNUNDBETjQ5MzcyOUtVRUFJQV… 2/12 It is an autocorrelation It is a spectrum It is always an odd function It is always an even function It is a convolution It is defined in the frequency domain It is a cross correlation Its value is always higher than the product of the RMS values of x and y It is defined in the time domain 3 In a measurement process I have a sine with random phase and I have 1000 records. Three samples are given. Which of the following do apply? (4 punti) 8/7/2021 Meas 2021 July 18 Part1 https://forms.office.com/Pages/ResponsePage.aspx?id=K3EXCvNtXUKAjjCd8ope60_E5LGpsJVDo_abJAuvijNUNDBETjQ5MzcyOUtVRUFJQV… 3/12 If I apply a trigger at .7V with positive slope, I get a good estimate of the sine wave If I average the records I get the best estimate of the sine wave cleaning it from noise Continous trigger is not the best choice for the actual situation If I average the full spectra (vector averaging) of each record I get the best estimate in the frequency domain of the sine wave cleaning it from noise If I apply a trigger at 2V positive slope and average in the time domain, I get a good estimate of…
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