Though Waller (1887) first recorded the electrocardiogram yet Einthoven (1903) was the real father of the electrocardiography. His method of recording E.C.G. through string galvanometer was followed until 1930 when it was largely replaced by the amplifier – driven oscillograph provided with direct ink recording. Principles upon which the string galvanometer was based are as […]
Methods of Recording Electrocardiogram (With Diagram) | Instruments | Biology
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