Askania Vertical Magnetic Force Variometer Elektroindustrie AG tripod GeoPhysics

Description

Askania Vertical Magnetic Force Variometer Elektroindustrie AG, Tripod, Leather Cases
Includes everything pictured.
This vintage instrument is museum-grade collectible and unique. Good luck finding one anywhere else with all the accessories.
Vertical Magnetic Force Variometer
Method:
Magnetics
Description
Operation of this variometer required first levelling the instrument on its tripod using two spirit levels. Instrument temperature was recorded from an internal mercury thermometer for the purpose of applying a compensation correction. The relative vertical magnetic force was measured off a graduated scale viewed through a microscope. Calibration scale and temperature compensation factors are not known for this instrument. Setup and measurement time for an experienced operator is estimated to be one minute.
Relative measure of Vertical Component. Resolution: 2 nT
Serial Number: 521687
Year of manufacture: Estimated 1930’s
Origin: Askania Werke. Germany