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1. 22R21A04R1
RAGHAVEND
AR ECE-D
2/14/2018

2. A TRANSDUCER IS DEVICE WHICH TRANSFORMS A NON-
ELECTRICAL PHYSICAL QUANTITY (i.e. temperature,light,
pressure) INTO A ELECTRICAL SIGNAL(i.e. voltage,current,
capacity ).
F
S
IN OTHER WORD IT IS A DEVICE THAT CAPABLE O
CONVERTING THE PHYSICAL QUANTITY INTO
PROPORTIONAL ELECTRICAL QUANTITY SUCH A
VOLTAGE AND CURRENT.
VOLTAGE
PRESSURE
2/14/2018

3. TRANSDUCER
PRIMARY
AND
SECONDARY
ANALOG
AND
DIGITAL
DIRECT AND
INVERSE
ACTIVE
AND
PASSIVE

4.  TREANSDUCER IN WHICH ELECTRICAL PARAMETER i.e
resistance,inductance or capacitance CHANGES WITH THE CHANGE IN INPUT
SIGNAL , ARE CALLED THE PASSIVE TRANSDUCERS. THESE
TRANSDUCERS REQUIRE EXTERNAL POWER SOURCE FOR ENERGY
CONVERSION. IN SUCH TRANSDUCERS ELECTRICAL PARAMETERS i.e
resistance ,inductance or capacitance CAUSES A CHANGE IN VOLTAG
,CURRENT OR FREQUENCY OF THE EXTERNAL POWER SOURCE.
 PASSIVE INDUCTIVE TRANSDUCER.
2/14/2018

5. VARIABLE
RESISTANCE
VARIABLE
REACTANCE
OPTO ELECTRONICS HALL EFECT TYPE
OHMIC EMISSIVE PHOTO CONDUCTIVE
INDUCTIVE CAPACITIVE
STRAIN GUAGE POTENTIOMATRIC
PASSIVE TRANSDUCER

6.  INEXPENSIVE
 RUGGED AND RELIABLE
 WIDE TEMPERARURE RANGE
 LOW OUTPUT VOLTAGE
 LOW SENSITIVITY
 NON-LINEARITY
 ELECTRICAL CONNECTION
PROS