ADVANTAGES OF DIGITAL
METERS OVER ANALOG
ANALOG AND DIGITAL METERS.
ANALOG METERS: An instrument which measures and
indicates values by means of a continuous scale within which
any value may be specified. Most of the time a pointer is used
to indicate readings.
DIGITAL METERS: A digital meter is a device used by
technicians to test and measure electronic circuits. Most of them are
portable, battery-powered units. They show measurements as numbers
and symbols on an electronic display.
WHY ANALOG WAS REPLACED
BY DIGITAL METERS?
3. It has moving parts. These can get
affected by an accidental drop to floor.
4. It has relatively less input resistance
especially in low voltage ranges such
as 3V prone to parallax error.
ADVANTAGES OF DIGITAL METERS
1. Output Display
It is easy to gauge a reading through digital multi-meter
since the output is automatically displayed in numbers
through a Seven Segment Display.
A digital meter takes a precise, computer-generated reading
and displays it on the screen.
3. Auto Polarity
Placing the probes into the opposite polarity will
result into a negative output.
4. Stable Calibration
We should only have to calibrate our digital meter
once -- when you first turn it on.
5. Current Protection
Most digital meters feature protection from
sudden shifts in current.
7. It can hold the reading in memory .
8. The reading speed is increased as it is easier
9. With the advent of Integrated circuits, the size,
cost and power requirements of digital
multimeters has been drastically reduced.
10. No moving parts, life will be high.
11. Has high resolution: Can detect very small
changes of the order of 0.1% of range.
A digital meter performs the calculation and
displays the reading.
13. Portable size makes it easy to carry