Practical podiatry : . : first, the hammerinterrupter; second, the mercury interrupter; third, theelectrolytic interrupter. The function of any one o-f theseinterrupters is to break up the continuous flow of directcurrent into small fragments. Each one of these fragmentsthen produces one impulse of high potentiality, which isthen directed through the tube. The alternating current, as its name implies, is alreadyinterrupted, but the impulses are alternately changing direc-tion, passing first in one direction and then in the oppositedirection. Plence, if the alternating current is used as aprima
Practical podiatry : . : first, the hammerinterrupter; second, the mercury interrupter; third, theelectrolytic interrupter. The function of any one o-f theseinterrupters is to break up the continuous flow of directcurrent into small fragments. Each one of these fragmentsthen produces one impulse of high potentiality, which isthen directed through the tube. The alternating current, as its name implies, is alreadyinterrupted, but the impulses are alternately changing direc-tion, passing first in one direction and then in the oppositedirection. Plence, if the alternating current is used as aprimary source of electric energy, then the secondary orhigh potential impulses will also be changing their directionalternately. Two methods are used in employing the alter-nating current as a primary source of energy. The firstconsists of the suppression of one phase (that which wouldpass in the negative direction) by means of the so-calledrectifier cell. The second consists of producing high poten- X-RAYS IN PODIATRY 389. INTERUPTERLESS TYPE GENERATOR 390 PODIATRY tial impulses which flow in alternate directions, and to thenredirect these impulses so that all of those passing throughthe tube are in the one and the same direction. Accordingly, X-ray apparatus can be divided into thethree classes previously mentioned. The coil, consisting ofan induction coil activated by direct current, which is brokeninto small sections by the interrupter; or the induction coilwhich is energized by the alterating current of which onephase is suppressed through a liquid rectifier cell, and inwhich the proper interruptions are again produced by someinterrupting device. The most extensively used type ofapparatus is known as the interrupterless machine. Thismachine operates on either the direct or the alternating cur-rent, but, if the direct current is used as a primary source,it is transformed into an alternating current by means ofa rotary converter or motor generator set. The alternatingcurrent, th
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