Transducer: A transducer is a device which transforms a non-electrical physical quantity (i.e. temperature, sound or light) into an electrical signal (i.e. voltage, current, capacity…).
Where are they used and what for?
Antenna: Antenna is the most basic transducer and can be made from a simple piece of wire. It converts electromagnetic energy into electricity when it receives signals and does the opposite when it transmits.
Strain gauges: have a long thin wire attached to a foil backing which is glued to an object. When the object changes shape, the strain gauge also changes shape and its resistance changes. The amount of stress or strain in the object is calculated from this change in resistance.
• Accelerometer: which converts the change in position of mass into an electrical signal. Accelerometers measure the force of acceleration and deceleration. They are used in car airbags, stability control, hard drives, and many electronic gadgets.
Geiger counter: detects radiation levels by using a transducer called a Geiger-Muller tube.
• Microphone and Speaker. Microphones convert sound pressure waves into electrical current, while speaker convert electrical current into sound pressure waves.
• And many many others.
read also:
1.Classification of Transducers
What is its structure
A transducer is made of three blocks:
o Input I/F
o Sensor
o Output I/F
Important parameters of a transducer
Static response: how does it respond to slowly variable signals, is it precise and accurate.
• Dynamic response: how does it respond to quickly variable signals (bandwidth of control system, tr , ts !!!).
• Environmental factors: how these factors are affecting transducer performance.
• Reliability: MTBF.
Where are they used and what for?
Antenna: Antenna is the most basic transducer and can be made from a simple piece of wire. It converts electromagnetic energy into electricity when it receives signals and does the opposite when it transmits.
Strain gauges: have a long thin wire attached to a foil backing which is glued to an object. When the object changes shape, the strain gauge also changes shape and its resistance changes. The amount of stress or strain in the object is calculated from this change in resistance.
• Accelerometer: which converts the change in position of mass into an electrical signal. Accelerometers measure the force of acceleration and deceleration. They are used in car airbags, stability control, hard drives, and many electronic gadgets.
Geiger counter: detects radiation levels by using a transducer called a Geiger-Muller tube.
• Microphone and Speaker. Microphones convert sound pressure waves into electrical current, while speaker convert electrical current into sound pressure waves.
• And many many others.
read also:
1.Classification of Transducers
A transducer is made of three blocks:
o Input I/F
o Sensor
o Output I/F
Important parameters of a transducer
Static response: how does it respond to slowly variable signals, is it precise and accurate.
• Dynamic response: how does it respond to quickly variable signals (bandwidth of control system, tr , ts !!!).
• Environmental factors: how these factors are affecting transducer performance.
• Reliability: MTBF.
What Is A Transducer
Reviewed by Unknown
on
June 14, 2018
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Reviewed by Unknown
on
June 14, 2018
Rating:
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