. The principles and practice of roentgenological technique . Fig. 135.—Benoist Qualimeter. The central disc isof silver and concentrically disposed about it aretwelve sectors of aluminum from i to 12 thickness. Mcasiirciiiciit by Static Electrometer—-Bauer Qualimeter. Another method of meas-uring the potential difference between theanode and cathode and of translating it interms of ray penetration is by means of theBauer Qualimeter. (Figs. 133, 134.) 96 BAUER OUALIMETER The Bauer Qualimeter makes use of adevice which depends on the fall of potentialin a condenser. It consists of two cir
. The principles and practice of roentgenological technique . Fig. 135.—Benoist Qualimeter. The central disc isof silver and concentrically disposed about it aretwelve sectors of aluminum from i to 12 thickness. Mcasiirciiiciit by Static Electrometer—-Bauer Qualimeter. Another method of meas-uring the potential difference between theanode and cathode and of translating it interms of ray penetration is by means of theBauer Qualimeter. (Figs. 133, 134.) 96 BAUER OUALIMETER The Bauer Qualimeter makes use of adevice which depends on the fall of potentialin a condenser. It consists of two circularmetallic plates with an air space betweenthem forming a condenser, placed above a. Fig. 136.— Benoist Penetrometer. RadiographicTest. Ttie variously darkened sectors are com-pared to the central area and the matching sec-tor indicates the penetration of the ray in termsof Benoist units. static electrometer. This electrometer con-sists of two fixed metallic plates betweenwhich there swings on a pendulum two metal-lic wings, fixed on a common axis. Whenthese are jointed up to the cathode of the
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectradiogr, bookyear1920
