ballistic galvanometer

In order to operate correctly, the discharge time through the regular ballistic galvanometer must be shorter than the period of oscillation.

An interesting form of ballistic galvanometer is the Grassot fluxmeter.

A ballistic galvanometer is a type of sensitive galvanometer, commonly a mirror galvanometer.

The quantity of electric charge can be directly measured with an electrometer, or indirectly measured with a ballistic galvanometer.

A ballistic galvanometer is an instrument with a high moment of inertia, arranged so that its deflection is proportional to the total charge sent through the meter's coil.

Its construction is similar to that of a ballistic galvanometer, but its coil is suspended without any restoring forces in the suspension thread or in the current leads.

In 1924, the German psychiatrist Hans Berger connected a couple of electrodes (small round discs of metal) to a patient's scalp and detected a small current by using a ballistic galvanometer.