. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 476 BELL SYSTEM TECHNICAL JOURNAL mental arrangement is illustrated in Fig. 2. Holes are injected into a germanium filament by an emitter point and the circuit is closed by allowing the current to flow to the large electrode at the left end. The right end of the filament is left floating. Some of the injected holes diffuse HOLES INJECTED FLOATING POTENTIAL, Vnr, AND CONDUCTANCE,Y, MEASURED. Fig. 2.—Schematic diagram of experiment of G. L. Pearson to investigate relatio
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 476 BELL SYSTEM TECHNICAL JOURNAL mental arrangement is illustrated in Fig. 2. Holes are injected into a germanium filament by an emitter point and the circuit is closed by allowing the current to flow to the large electrode at the left end. The right end of the filament is left floating. Some of the injected holes diffuse HOLES INJECTED FLOATING POTENTIAL, Vnr, AND CONDUCTANCE,Y, MEASURED. Fig. 2.—Schematic diagram of experiment of G. L. Pearson to investigate relation be- tween floating potential and impedance of point contact. >"6 Z 3 o /^ >^A / / / A / o o y / A o / O EMITTER CURRENT VARIED A EMITTER DISTANCE VARIED / /o^ 0 FLOATING POTENTIAL, Vf, IN TERMS OF KT/e Fig. 3.—The relationship of admittance ratio to potential, measured at a point on a germanium filament into which holes are emitted, with no current flow, from G. L. Pear- son's data of September 21, 1948. down the filament and increase the local concentration in the neighbor- hood of the probe point. This concentration can be varied by changing the emitter current and also by changing the distance between emitter and ])robe. Hoth the floating potential and the conductance between the prol)c point and the large electrode on the right end were measured. L'nder the conditions of this experiment, the potential drop in the in-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
