Electro-diagnosis and electro-therapeutics - a guide for practitioners and students (1904) (14593017507)

Identifier: electrodiagnosis00cohn (find matches)

Title: Electro-diagnosis and electro-therapeutics : a guide for practitioners and students

Year: 1904 (1900s)

Authors: Cohn, Toby, 1866-1929 Scratchley, Frances A

Subjects: Electrodiagnosis Electrotherapeutics Electric Stimulation Therapy Electrodiagnosis

Publisher: New York : Funk & Wagnalls

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

Fig. 47.—Large Solenoid for General Teslaizatlon. (without the wall-case and the current source). Thediagram (Fig. 48) will explain the course of the currentin such an apparatus.From a current source (street-lighting system or accu- 248 ELECTRO-TEEBAFEUTICS mulating batteries) couneetions pass through a wall-caseto the Euhmkorff. The case contains the apparatus forregulating the current (resistances, current-reverser) andfor measuring (amperemeter). Often it contains also

Text Appearing After Image:

eUctroi^ Fig. 48.—Diagram of Current Course in an Apparatus for High-Frequency Current. the mercury interrupter for the inductor (in Figs. 46and 48 it is at the right of the Euhmkorff). The Euhmkorff, which in most apparatus producessparks of at least 25 cm. length, is connected with thecondensers—the Ley den jars—by means of two conduct- TESLAIZATION 249 ing-wires. At the upper end of the inner coating of thejars there are two metal rods with balls at the ends (dis-chargers), while the conductors from the outer coatinglead to the two ends of a solenoid. When the apparatusis working, the equalization of electrical tension occursin the form of a powerful spark (whose length can beregulated by moving the dischargers). As has been saidabove, the numerous invisible oscillations of this sparkproduce the desired frequent change of current direction. From this enormously powerful current, which causes physiologyan incandescent light to glow by mere radiation, oneshould expect, a priori

Elektrodiagnose und Elektrotherapie, ein Leitfaden für Praktiker und Studenten 1904 Buchillustrationen Medizin medizinische Illustrationen Krankengeschichte Geschichte der Technologie elektrische Energie Elektrizität medizinische Therapie Elektrotherapeutika Bilder aus dem Internetarchiv

1904

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