Measuring Pulse width modulation PWM

[walters]

How do i measure Pulse width Modulation (PWM) ?
with a oscilloscope?

How do i measure the Duty Cycle of the PWM?
with a oscilloscope?

How do i measure the Pulse width?
with a oscilloscope?


How do i measure the Time constant?
with a oscilloscope?


How do i measure the rise time and fall time?
with a oscilloscope?

how to Measure the Period and frequency of the PWM?
with a oscilloscope?

[walters]

Voltage = distance in cm × volts/cm
Example: peak-peak voltage = 4.2cm × 2V/cm = 8.4V
amplitude (peak voltage) = ½ × peak-peak voltage = 4.2V

Time = distance in cm × time/cm
Example: time period = 4.0cm × 5ms/cm = 20ms
and frequency = 1/time period = 1/20ms = 50Hz

Can your please give me examples from these formulas i need please

1.) Pulse width Modulation PWM?

Pulse widith Modulation= distance in cm X time/cm?
example?

2.) Duty Cycle?

Duty Cycle = distance in cm X time/cm?
example?

3.) Pulse width?

Pulse width = distance in cm X time/cm?
example?

4.) Time constant?

Time constant= distance in cm X time/cm?
example?

5.) Rise time and Fall time?

Rise time= distance in cm X time/cm?
example?


Fall time= distance in cm X time/cm?
example?