Vallási és spirituális tárgyak (12) - Alumínium - 1960-1970
Nr. 30176701
Eladva
Végső licit
€ 32
234 héttel ezelőtt
SIAP BOLOGNA - légnyomásíró - Alumínium
A barograph
A recording barometer, that is, an atmospheric pressure meter capable of providing its time diagram (barogram).
To do this, it uses a column of barometric capsules whose deformations are transmitted and amplified,
through a system of levers, and a writing pen on diagram paper.
Since a temperature change involves, due to thermal deformations of the system, a displacement of the index, and therefore a fictitious pressure variation, this barometer is thermally compensated by a bimetallic lamina inserted in the lever amplifier system.
In working condition. Its case is to be repainted.
Made in Italy, SIAP, Bologna.
Nr. 30176701
Eladva
SIAP BOLOGNA - légnyomásíró - Alumínium
A barograph
A recording barometer, that is, an atmospheric pressure meter capable of providing its time diagram (barogram).
To do this, it uses a column of barometric capsules whose deformations are transmitted and amplified,
through a system of levers, and a writing pen on diagram paper.
Since a temperature change involves, due to thermal deformations of the system, a displacement of the index, and therefore a fictitious pressure variation, this barometer is thermally compensated by a bimetallic lamina inserted in the lever amplifier system.
In working condition. Its case is to be repainted.
Made in Italy, SIAP, Bologna.
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