Galvanometer, Moving coil type - Brass - Early 20th century
In perfect condition after 100 years, museum quality
I inherited this device from my uncle, who was an inventor in the field of electricity and light. Before the Second World War he maintained a lot of contact with Philips in Eindhoven.
Passive Tester
Material: Metal, Brass, Aluminium, Glass
Dimensions: Ø: 190mm; ↨: 235mm Mass 3.7kg
Serial number 9218
The Ballistic Galvanometer has an increased moment of inertia, allowing it to measure current and voltage surges.
References:
- Sammlung Historischer Messtechnik, Berlin under Ballistiche Galvanometers Type 155 B
- The theoretical and mathematical background is described in the book "Das Ballistische Galvanometer" by Dr.-Ing. J Bubert described in detail
Galvanometer, Moving coil type - Brass - Early 20th century
Ballistic moving coil mirror galvanometer from Hartmann and Braun from 1920
In perfect condition after 100 years, museum quality
I inherited this device from my uncle, who was an inventor in the field of electricity and light. Before the Second World War he maintained a lot of contact with Philips in Eindhoven.
Passive Tester
Material: Metal, Brass, Aluminium, Glass
Dimensions: Ø: 190mm; ↨: 235mm Mass 3.7kg
Serial number 9218
The Ballistic Galvanometer has an increased moment of inertia, allowing it to measure current and voltage surges.
References:
- Sammlung Historischer Messtechnik, Berlin under Ballistiche Galvanometers Type 155 B
- The theoretical and mathematical background is described in the book "Das Ballistische Galvanometer" by Dr.-Ing. J Bubert described in detail