ESI 250-DA - Convenient Audio Frequency Units for Calculations

5.
CONVENIENT
AUDIO
FREQUENCY
UNITS
For
measurement
and
calculation
in
the
audio
frequency
range
the
conventional
electrical
units
are
often
inconvenient.
A
consistent
set
of
units
can
be
chosen
so that
the
numerical
values
commonly
encountered
will
be
more
practical
while at
the
same
time
the
equations
used
in
calculations
will
not
require
any
troublesome
conversion
constants.
If
either
set
of
units
listed
below
is
followed
consistently,
the
equations
used
for
calculations
will
be
unaltered.
For
example,
E
=
IR
holds
true
equally
well
with
E in
volts,
I
in
amperes,
and
R
in
ohms;
or
with
E in
volts,
I
in
milliamperes
and
R in
kilohms
.
Function
C
onventional
Units
Convenient
Audio
Frequency
Units
CO
radian/sec
=
Zirf
cps
kiloradian/sec
=
Zirf^
f
cps
kc
t
second
millisecond
C
farad
microfarad
Z
,
R
and
X
ohm
kilohm
L
henry
henry
I
ampere
milliamp
E
volt
volt
P
watt
milliwatt
Q
and
D
per
unit
ratio
per
unit
ratio
ISSm
2 50-DA
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