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Michiels (1959) |
graph 1
external tuning hum note, fundamental, minor tierce and nominal
partials
(equal temperament, base -4 cents if A1=440 Hz, air temperature
28. C)
graph 2
same as graph 1, but limited scale, maximum deviation 200 cents
graph 3
internal tuning hum, fundamental, minor tierce and quint
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 4
internal tuning hum, fundamental, minor tierce and quint-nominal
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 5
internal tuning hum, minor tierce, quint-nominal and octave-nominal
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 6
internal tuning minor tierce, quint-nominal, octave-nominal and
double fourth
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 7
internal tuning quint-nominal, octave-nominal, double fourth and
major triple-sixth
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 8
internal tuning octave-nominal, double fourth, major triple sixth
and triple octave
(related as equal tempered intervals to the nominal partials of
the individual bells)
graph 9
fD-value: a way of measuring the thickness of the bell-profile.
The frequency (in cycles per second) of the hum-note multiplied
by the diameter of the bell (in meters).
