International Library of Technology · Scranton, International Textbook Co. · leaf 237
ELECTRICAL MEASUREMENTS. 1671 with the various galvanometers and other apparatus alreadydescribed. Some of the best forms of portable instruments … tiG. 1U21. made are those known as the Weston instruments,general form is shownin Fig. 1020. Theseinstruments are madeon the principle of theDArsonval galvanom-eter (Art. 2476),as shown in the sec-tional view, Fig.1021. Fig. 1022 shows themagnetic circuit ofthis form of instru-ment. The…
Electrical engineering
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