Recently the handsome little galvanometer (only 10 cm high) in Fig. 1 came into the Greenslade Collection. This is a design without a moving coil and, consequently, is very rugged. At the same time, John Daffron independently sent Tom Greenslade the picture of a similar galvanometer that he had made some years back and has been using for experimental work since then. These galvanometers are easy to build and can still be used in the lecture hall.
References
1.
Thomas B.
Greenslade
Jr., “Galvanometers
,” Phys. Teach.
35
, 423
–426
(Oct. 1997
). 2.
Thomas B.
Greenslade
Jr., “Edward Weston and the ‘modern’ galvanometer movement
,” Phys. Teach.
46
, 162
–164
(March 2008
). 3.
See supplementary material at
TPT Online
, http://dx.doi.org/10.1119/1.4917436.4.
Albert A.
Bartlett
, “Torsional oscillations and waves projected onto the wall
,” Phys. Teach.
46
, 338
–340
(Sept. 2008
). © 2015 American Association of Physics Teachers.
2015
American Association of Physics Teachers
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