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Encyclopedia > Lippmann electrometer

A Lipman electrometer is a device for detecting small rushes of electric current. It was invented by Gabriel Lippmann. The device consists of a U-tube which is fat on one end and very thin on the other. The thin end is designed to act as a capillary tube. The u-tube is half filled with mercury with a small amount of dilute sulphuric acid above the mercury in the capillary tube. Metal wires are connected at the fat end into the mercury and at the thin end into the sulphuric acid. Categories: Possible copyright violations ... This article or section does not cite its references or sources. ... Look up Mercury in Wiktionary, the free dictionary. ...

When the pulse of electricity arrives it changes the surface tension of the mercury and allows it to leap up a short distance in the capillary tube. This device was used in the first practical ECG machine which was invented by Augustus DesirĂ© Waller. ECG may also refer to the East Coast Greenway Lead II An Electrocardiogram (ECG or EKG, abbreviated from the German Elektrokardiogramm) is a graphic produced by an electrocardiograph, which records the electrical voltage in the heart in the form of a continuous strip graph. ... Augustus Desiré Waller FRS (12 July 1856 - 11 March 1922) was a British scientist and the son of Augustus Volney Waller. ...



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