An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from...

A Lippmann electrometer is a device for detecting small rushes of electric current and was invented by Gabriel Lippmann in 1873. The device consists of...

allowed him to develop a sensitive capillary electrometer, subsequently known as the Lippmann electrometer which was used in the first ECG machine. In...

Faraday cup electrometer is the simplest form of an electrical aerosol instrument used in aerosol studies. It consists of an electrometer and a filter...

The E-Meter (also electropsychometer and Hubbard Electrometer) is an electronic device used in Scientology that allegedly "registers emotional reactions"...

Augustus Waller invented an ECG machine consisting of a Lippmann capillary electrometer fixed to a projector. The trace from the heartbeat was projected onto...

piezoelectricity. To aid this work they invented the piezoelectric quartz electrometer. The following year they demonstrated the reverse effect: that crystals...

instrument that measures electric charge quantitatively is called an electrometer. The electroscope was the first electrical measuring instrument. The...

and proven to exist in 1912, as the scientist Victor Hess carried an electrometer to various altitudes in a free balloon flight. The nature of these radiations...

creation of a Townsend avalanche for every alpha particle entering the vessel. At very low count rates these registered as "kicks" on an electrometer needle....