Results 251 to 255 of about 9,983 (255)

[Measurement of changes of acoustic impedance as a test method for evaluation of pressure in the middle ear].

Il Valsalva, 1968
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Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

2012
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Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

2019
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Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

2010
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Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

openaire   +1 more source