learning is fun!!!

2. 
A sensor is a converter that
measures a physical quantity and
converts it into a signal which can
be read by an observer or by an
(today mostly electronic)
instrument

3. 
A piezoelectric sensor is a device that
uses the piezoelectric effect to
measure pressure, acceleration, strain or f
orce by converting them to an
electrical charge. The prefix piezo is Greek
for 'press' or 'squeeze'.

4. 
Piezoelectricity is the electric charge that
accumulates in certain solid materials (such
as crystals, certain ceramics, and biological
matter such as bone, DNA and
various proteins)in response to applied
mechanical stress.

5. 





PIEZOELECTRIC SENSORS
BREADBOARD
WIRES
RESISTANCES
RED LED
SOLDERING MACHINE

7. THE BLINKING OF THE
RED LED IS DUE TO
“PIEZOELECTRIC”
EFFECT AS
DISCUSSED EARLIER.

8. 
ON MAKING PROPER CONNECTIONS ONE
CAN NOTICE THAT AS THE SENSORS ARE
PRESSED AND RELEASED
CONTINUOSLY,THE LED BLINKS.

THE LARGER THE PRESSURE APPLIED THE
LARGER WILL BE THE CURRENT AND
HENCE LARGER WILL BE THE INTENSITY OF
LIGHT PRODUCED.