Museo
de
Física,
FCEyN,
UBA
Proyecto
Museo
del
Departamento
de
Física,
FCEyN,
UBA
Pieza
#
040
Información
Disponible # 040 Denominación
identificatoria Electrómetro
atmosférico
de
Peltier
Función
Medición
Principio
de
funcionamiento The
cylindrical
glass
box
that
encloses
and
protects
the
gauging
system
(with
a
horizontal
needle)
of
the
instrument
from
external
agents
is
fixed
on
a
special
circular
groove
that
holds
the
circular
beech
base
with
three
brass
levelling
screws.
A
conductor
passes
vertically
through
a
central
hole
on
the
upper
base
of
the
box;
the
conductor
consists
externally
of
a
vertically
placed
rod
that
bears
a
light
copper
globe,
and
of
a
sort
of
brass
ring
that
is
fixed
to
a
small
horizontal
brass
rod,
within
the
glass
box.
The
small
brass
rod
has
two
small
spheres
at
its
extremities,
and
it
is
fixed
to
a
circular
insulating
base.
The
small
brass
rod
and
the
ring
are
attached
to
a
pointed
pivot
that
passes
through
the
ring.
A
very
thin
and
light
mobile
copper
index
hangs
above
the
point,
and
it
is
attached
to
a
fragment
of
a
magnetized
needle
so
that
the
index
has
the
weak
tendency
to
come
back
towards
the
zero
point
of
measure
of
the
graduated
scale.
The
scale
is
carved
at
the
level
of
the
index
along
the
external
surface
of
the
glass
cylinder:
it
has
two
zero
readings
and
is
divided
into
four
quadrants,
each
of
90°.
Referencias
locales
Cod.
Bco.
275
Marcas A.
Beaulieu
Bruxelles
Época
siglo
XIX
Referencias
bibliográficas
Referencias
en
Internet http://www.uniurb.it/PhysLab/strumenti/e20.html
Referencias
personales
Comentarios
Las
correcciones
y
nuevos
datos
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a
Guillermo
Mattei
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el
número
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pieza.
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Guillermo
Mattei