. Eight lectures on the signs of life from their electrical aspect . FlG. 63.—Galvanograph and Railway Myograph. give records lasting 40 and 20 minutes ; 5 mm. per second gives a 20 seconds record. For speeds above 5 mm. per second a record- ing electrometer should be used. Simultaneous records.—In certain cases it is desirable to obtain the simultaneous record of a series of electrical reactions and of the corresponding series of muscular contractions. For this purpose, a truck carrying a smoked plate, and con- nected with the suspended carrier that holds the photographic plate, is added to t
. Eight lectures on the signs of life from their electrical aspect . FlG. 63.—Galvanograph and Railway Myograph. give records lasting 40 and 20 minutes ; 5 mm. per second gives a 20 seconds record. For speeds above 5 mm. per second a record- ing electrometer should be used. Simultaneous records.—In certain cases it is desirable to obtain the simultaneous record of a series of electrical reactions and of the corresponding series of muscular contractions. For this purpose, a truck carrying a smoked plate, and con- nected with the suspended carrier that holds the photographic plate, is added to the apparatus. The thread by which the carrier is suspended passes round the axis of the motor and over two small pulleys, and is fastened to the carrier of the smoked plate,
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1903
