Review of the Parameters:
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Review of the Parameters:
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VAB
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is the principal volume of the enclosure in cubic meter
(m3)
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QB
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is the over-tension coefficient of the enclosure.
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QTS
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is the coefficient of total quality of the LS assembled in
the enclosure.
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Z1
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is the value of the acoustic impedance.
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QTC
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is the coefficient of calculation for the closed
enclosures.
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A
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vas/vab ratio
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MMS
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mass mobile of the crew of the LS
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SD
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surface activates membrane of the LS
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FR
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frequency of resonance of the LS
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QT
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coefficient of total quality of the LS
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QM
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mechanical coefficient of quality of the LS
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Rcc
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resistance to the D.C. current of the reel of the LS
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CMS
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mechanical compliance of the LS
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QE
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electric coefficient of quality
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BL
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factor of force of the engine of the LS
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FA
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factor of acceleration of the LS
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NO%
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output expressed as a percentage of the LS
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EFF
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acoustic effectiveness in decibel
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ZMAX
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maximum electric impedance with resonance
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DS
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useful diameter of the LS
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RO
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maximum electric resistance to resonance
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QTD
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intrinsic coefficient of quality of the LS
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VAS
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Acoustic volume of the LS
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SAS
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Acoustic volume of the LS
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LAS
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Acoustic length of the LS
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MAS
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Mass acoustic LS
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VD
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LD
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FD
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MAB
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mass acoustic related to the volume of the enclosure
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FB
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frequency of resonance of the volume of air locked up in
limps principal
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LAB
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theoretical length of the volume of air
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SAB
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theoretical surface of the volume of air
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DAB
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theoretical diameter of surface sab
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VAB
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principal volume of air
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ALPHA
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vas/vab ratio
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CAB
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acoustic compliance of the principal volume of air
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S
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coefficient of Snyder
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n
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power of beta
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MEP
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mass acoustic external vent
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SEP
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surface external vent
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DEP
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diameter of the external vent
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VEP
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acoustic volume of the external vent
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FEP
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frequency of resonance of the external vent
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MEV
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mass acoustic internal vent
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SEV
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surface internal vent
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DEV
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diameter of the internal vent
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VEV
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acoustic volume of the internal vent
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FEV
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frequency of resonance of the internal vent.
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