Physics A-Level
Transducer damping and coupling
What Transducer damping and coupling means in Physics A-Level, as defined for AQA.
Definition of Transducer damping and coupling
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Reference: AQA
A backing material damps vibrations so the pulse is short, and gel couples the transducer to skin to reduce reflection at the air boundary.
Topics that use Transducer damping and coupling
- Ultrasound imaging (A-level only) (AQA A-Level)
Related terms
- A-scan
- Acoustic impedance
- Acoustic impedance and reflection
- Attenuation and penetration
- B-scan
- Comparison with X-ray, CT and MRI
- Coupling gel
- Intensity reflection coefficient
Using Transducer damping and coupling in the exam
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