коэффциент пропускания (передачи)

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Note added at 16 mins (2020-01-12 18:02:49 GMT)
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The intrinsic contribution can be defined by the reflection coefficient (RC) or the transmission coefficient (TC), which depends only on the measurement frequency and the material properties of the plate and the coupling fluid. The extrinsic parameters include all the measurement settings such as transducer aperture size, beam shape, orientation angle and location.
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

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Note added at 18 mins (2020-01-12 18:04:49 GMT)
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И по по той же ссылке:
Rapid TC reconstruction on the 525-^m-thick silicon wafer. (a) the reconstructed TC in dB