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طراحي و ساخت لوله امپدانس براي تعيين ضريب جذب صوتي برخي مصالحمورد استفاده در كنترل صداTRANSCRIPT
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of materials using standing wave tube, Cen-ter formechanics of micro systems, schoolof technical & production engineering, 22March 2005.
8. Prodi N, Pompoli F, Bonfiglio P. A new ap-
paratus for measuring the absorption coef-ficient for normal incidence, dipartimento diingegneria, universit di ferrara, Italia, Vol25, Pt4, 2003.
9. Yang L, Finn J, Measurement of absorptionwith a p-u sound intensity probe in an im-pedance tube (L). J Acoustic Soc Am 2005Oct; 118(4) : 2117-2120.
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13. Bell LH, Bell DH. Industrial noise control,Second edition, New York, Marcel Dekkel,1994.
Part 1: Method using standing wave ratio,ISO 10534- 1:1996.
3. International standard organization, Acous-tics-Determination of sound absorption co-efficient and impedance in impedance
tubes-Part 2: Transfer-Function method",ISO 10534-2, 1998.4. Russel DA. Absorption coefficient and im-
pedance, Science and mathematics de-partment, GMI engineering and manage-ment institute flint, MI, 48504, 1997.
5. Angelo F, Patrizio F. Standing wave tubetechniques for measuring the normal inci-dence absorption coefficient, comparationof different experimental setups, Dipart, DiIng, Industriale, Universit di Parma, Viadelle Scienze, 43100 Parma,Italy,(1994).
6. Angelo F, Anna T. Measurement of the
sound absorption coefficient of materialswith a new sound intensity technique.Ipartimento ingegneriaindustriale.Universityof parma - Viale delle scienze, 3100 Parma,Italy, 1997.
7. Dewei P, Shih-Fu L. Microphone-free mea-surement of acoustic absorption coefficient