Oscilloscope
•Oscilloscope
fall in two main category one is analogue oscilloscope and second is digital storage oscilloscope.
•Oscilloscope
develop with the cathode
ray tube (CRT) technology.
•Cathode
ray
tube (CRT)
have high frequency response.
•So
lets look at the CRT first.
•CRT
simply shows the electron beam on phosphor coated screen.
•CRT
basically consist of electron
gun, vertical and horizontal
deflection system and acceleration section.
•So
the oscilloscope circuit move the
electron beam to the phosphor coated screen so the glow trace a path of the beam and it is visible for a short
time.
•Oscilloscope
are often use for rise
time measurements.
•Oscilloscope
is use for measuring
frequency, width and period.
•Oscilloscope
display amplitude of signal in function
of time.
•Both
analogue and digital oscilloscope have 2 to 8
channels.
•Analogue oscilloscope have no memory storage and digital oscilloscope have some memory storage.
•If we
want to check voltage
spike or to
check
time interval accuracy we
use oscilloscope.
•In
modern oscilloscope there is VLSI
circuits.
•Modern
(digital) oscilloscope are costlier than analogue oscilloscope.
