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 enviarlos a Guillermo Mattei indicando claramente el número de pieza.

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