pacchetto 3

Question 1

acquisition strategies

Answer 1

manual or acquisition linked to a phenomenon

Question 2

what is the trigger

Answer 2

trigger is a device that starts acquisition when the signal exceeds a threshold level.
The trigger signal is one of the signal to measure, or an additional one.
The threshold level, is fixed in therms of RMS value

Question 3

What is RMS?

Answer 3

Mean square root value

Question 4

start the acquisition of signal: problems

Answer 4

The time is crucial, cause the recordings must be comparable.
having sync record is foundamental for data operations as mean and so on.

Question 5

type of trigger

Answer 5

internal: the signal is part of the acquisition
external: the signal is a extra signal related to phenomena

Question 6

How to solve noise in acquisition?

Answer 6

Acquiring a lot of signals e average them

Question 7

Asynchronous vs synchronous

Answer 7

Asynchronous is related to the time(constant delta t), while synchronous is related to a phenomenon for example position of a shaft in radiant.