Physics A-Level
Acoustic matching
What Acoustic matching means in Physics A-Level, as defined for OCR.
Definition of Acoustic matching
Check what you remember
Read the wording for your board, then hide it and explain Acoustic matching in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The technique of choosing a coupling medium whose acoustic impedance is close to that of the skin, so that ultrasound passes efficiently from the transducer into the body.
Topics that use Acoustic matching
- Using ultrasound (OCR A-Level)
Related terms
- A-scan
- Acoustic impedance
- Acoustic impedance mismatch
- Angle dependence of Doppler shift
- B-scan
- Coupling gel
- Coupling gel in ultrasound scanning
- Density and speed of ultrasound
Using Acoustic matching in the exam
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