harryr
Electrical
- Apr 10, 2002
- 16
how many cycles of a constant frequency sine wave are counted before one determines the frequency of the signal?
one cycle?
how about measuring the time it takes to go from 0 volts
to the first peak and multiplying the time by 4 to get the time for a complete cycle. the frequency is then the reciporical of that number.
for example: if you have the start of a 30 MHz signal and before the first peak the signal changes to 60 MHz and then changes back to 30 MHZ before it reaches its first peak.this repeats again and again and again.
What will the resultant signal look like and what is the
(measured) frequency.
Is it a 30MHZ signal followed by a 60 MHz signal followed be a 30 MHz signal followed by a 60MHz signal and on an on?
one cycle?
how about measuring the time it takes to go from 0 volts
to the first peak and multiplying the time by 4 to get the time for a complete cycle. the frequency is then the reciporical of that number.
for example: if you have the start of a 30 MHz signal and before the first peak the signal changes to 60 MHz and then changes back to 30 MHZ before it reaches its first peak.this repeats again and again and again.
What will the resultant signal look like and what is the
(measured) frequency.
Is it a 30MHZ signal followed by a 60 MHz signal followed be a 30 MHz signal followed by a 60MHz signal and on an on?