TRANSDUCERS AND
SENSORS
Unit 15 Electrical Circuit and their Application
2021/2022
Unit 15 Assignment C
,Table of Contents
Measuring devices.................................................................................................................................2
Active and passive.............................................................................................................................6
THERMOCOUPLE...................................................................................................................................8
Advantages:.....................................................................................................................................11
Disadvantages:.................................................................................................................................11
PIEZOELECTRIC.....................................................................................................................................12
How does it work?...........................................................................................................................13
Advantages:.....................................................................................................................................13
Disadvantages:.................................................................................................................................13
Sensors devices....................................................................................................................................14
Bibliography.........................................................................................................................................17
1
, Measuring devices
Transducers are devices that are able to convert energy from one to another,
meaning that some transducers can convert electrical energy into mechanical
energy, and vice versa. But there are also transducers that does both. These
devices are used for measurements or information transfer.
The measurement devices are:
Oscilloscope
Multi-meters
Data logger
Measurement device General use Industry specific use
Oscilloscope Oscilloscope convert Most oscilloscopes in
electrical power to these days are digital,
mechanical power. Its making them more
function is to test the accurate to read the
voltage signals and signals and the
display it as waveforms, calculations are faster.
with the visual The data storage and the
representations of the automated analysis are
variation of voltage over also more detailed. The
time. In the graph the y- oscilloscope is mostly
axis represent the used in the industrial
voltage measurement word such as in pumps,
and the x-axis represent compressors, motors,
the time. conveyors, robot and
The imagine is the graph more.
can reveal: The main industries that
The voltage signal uses it are:
shape auto-repair. They
Current signal are used in cars
shape to examine and to
Anomalies check the fuel
Frequency injectors.
variations Engineering. They
Noise signal are used in sound
engineers to
The advantage of using diagnose
oscilloscope is that it frequency
give you real-time response for
analysis. By viewing the sound equipment.
waveform in real time, Furthermore, for
you can quickly calculate electronic
its frequency and watch engineers who
the spikes and dips in depend on high
the power source. power scopes,
Furthermore, you can feature-laden
precisely control the size scopes, or digital
and shape of the oscilloscopes are
2