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WorksheetsBlock 2 - 4A - Transducers
Total questions: 11
Worksheet time: 6mins
A transducer is…
A device that measure the difference in pressure between the two pressure ports
A device that converts one form of energy to other form
The ratio of the output of the transmitter to the input signal
Which below include in Temperature transducer:
Thermocouple
Ultrasonic
Potentiometer
Strain Gauge
Potentiometer transducers are used for the measurement of
Pressure
Displacement
Humidity
All of the above
The temperature coefficient of a Thermistor is…
Positive
Negative
Zero
Neutral
What does a strain gauge consist of?
A pattern of resistive foil which is mounted on a backing material
A transducer that incorporates changes in the measurand to change a factor of capacitance theory
A pressure sensing diaphragm and two coils clamped between coil hosuings
A transducer that produces a voltage when a junction between two dissimilar metals are heated
Photovoltaic transduction are designed to produce…
voltage through heat
voltage through sound
voltage through light
voltage through vibrations
How many types of Electromechanical transducers are there
4
5
3
6
R=L/A relates to….
Strain Gauges
Crystal Microphone
Antennas
Permanent Magnet Speaker
How do Permanent Magnet Speaker work
Converts electrical signals to sound waves.
Using the PFM theory.
Uses the properties of two magnetic fields interacting with one another to generate sound.
The sound waves travel through the wires and end up out the speaker.
Which transducer uses the piezoelectric effect?
Crystal Microphone
Permanent Magnet Speaker
Thermistor
Variable Inductor
Which transducers belong to the Electromechanical group
Potentiometer, Variable-Capacitor, Variable-Inductor
Antennas
Crystal Microphone, Permanent Magnet Speaker
Photovoltaic, Thermocouple, Thermistor
