One of the mysteries of the English language finally explained.
A device for recording oscillations, especially those of an electric current.
- ‘Pressure and length gauge traces, electrocardiograms, and epicardial electrograms, at a frequency response of 30 to 250 Hz, were displayed and recorded on a multichannel oscillograph at paper speeds of 100 to 150 mm/s.’
- ‘These observations were supported by the use of sound level and oscillograph records.’
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