Different types of recorders

1.  161310109048 RAMI NIRAV
 161310109050 RAVAL ARPIT
 161310109051 ROHAN KAUSHIK
 161310109052 ROHIT K CHAVDA

2.  A recorder records electrical & non-electrical
quantities as a function of time.
 This record may be written or printed, and later on,
can be examined and analyzed to obtain a better
understanding and control of the processes

3.  Paper chart – to record information
 Stylus- writing instrument
 Interfacing apparatus

4. Recorders
Analog
Graphic
recorders
Oscillographic
recorders
Magnetic tape
recorders
Digital
Digital Tape
recorders

5.  Display and store a pen-and-ink record of the
history of some physical event.
i) Strip Chart Recorders
ii) X-Y Recorders

6.  Instrument records one or more parameters that
change with respect to time. Self balancing or
galvanometer
 One or more parameters with respect to some
other- XY recorder

7.  Signal conditioning to drive chart at desired rate
 Drives reversible motor
 Event marker to mark edges of chart

10. Circular motion, need special paper

12.  Mechanical
 Moving coil
 Moving iron
 Electromagnetic
 Induction meters
 Electrostatic

13.  Galvanometer recorder are uses d’Arsonval’s
movement
 But not sensitive
 Cost and size advantages

15.  A X-Y recorder is an instrument which gives a
graphic record of the relationship between
two variables
 Pen moves in two axes
 Pen clamped or by creating diff. Pressure to hold
pen
 Expensive
 Gives time base generator

19.  X, Y, inputs
 Multiple channels
 Time base
 X, Y, display
 Single ended inputs
 Differential inputs

20.  High frequencies
 High resolution
(fidelity)
 Magnetic modulation
of data
 Requires complicated
recording devices
 Can be used with strip
chart recorders