WHAT IS A WAVEFORM?
A waveform is simply a graphical plot of a quantity such as
voltage or current with respect to time or position.
TYPES OF WAVEFORM:
There are two distinctive types of waveform:
1.
Uni-directional Waveforms:
These waveforms are
always positive or negative in nature flowing in one direction only, their
amplitude is fixed. Some common uni-directional waveforms are Square-wave
timing signals, Clock pulses and Trigger pulses.
2.
Bi-directional Waveforms :
These waveforms are also called alternating waveforms
as they alternate from a positive
direction to a negative direction constantly crossing the zero axis point.
Bi-directional waveform varies both in magnitude and direction. Some common
Bi-directional waveforms are sine wave, triangular wave, complex wave, square
wave, saw-toothed wave etc
·
SQUARE WAVEFORM:
The square waveform, also called a pulse train, or pulse wave, is a
periodic waveform consisting of instantaneous transitions between two levels.
·
TRIANGULAR WAVEFORM:
The triangular waveform shows the signal that is sent to the solenoid
coil of the system. The signal varies in three ways: polarity, frequency and
amplitude.
·
COMPLEX WAVEFORM:
A complex waveform varies from instant to instant, but can be
resolved into a number of sine-wave components, each of a different frequency
and probably of different amplitude.
SINUSOIDAL WAVEFORM:
The sine wave or sinusoid is a mathematical function that
describes a smooth repetitive oscillation. It is a continuous uniform wave with
a constant frequency and amplitude.
