https://worldwide.espacenet.com/publicationDetails/originalDocument?CC=GB&NR=786111A&KC=A&FT=D&ND=3&date=19571113&DB=EPODOC&locale=en_EP
It was found by searching espacenet with AKG applicant and year span 1950, 1960.
It describes acoustic impedance machine arangments at the back of the membrane. (When we have impedance matching the wave is not reflected. When the characteristic impedance of a transmission line is terminated by an equal impedance there is no reflection. The line behaves as a infinite line. Like light (electimegntic wave for example) keep forever traveling through free space without obstacles).
No comments:
Post a Comment