Электроизмерительный прибор магнитоэлектрической системы…
11
Electrical measuring instrument of the magnetoelectric
system as an oscillator for laboratory study
of mechanical vibrations and resonance
© I.N. Fetisov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article describes the training kit and laboratory techniques for quantitative studies of
forced mechanical vibrations and resonance with the use of galvanometer or similar devic-
es as torsional oscillator. The oscillator of the galvanometer fully corresponds to the classi-
cal problem of forced vibrations: variable force generated by alternating current of the
generator varies harmonically and is applied directly to the inertial body and the dissipa-
tive resistance force is proportional to the velocity of the body. We show
the results of the
laboratory study of forced and intrinsic vibrations of the oscillator and prove that the de-
scribed method of studying the vibrations has advantages over conventional methods.
Keywords:
mechanical vibrations, forced vibrations, resonance, galvanometer, a labora-
tory experiment.
REFERENCES
[1] Pol' R.V.
Mekhanika, akustika i uchenie o teplote
[Mechanics, acoustics, and
heat]. Moscow, Nauka Publ., 1971, 480 p.
[2]
(accessed 08
March 2013).
[3] Khaustova V.I.
Izuchenie vynuzhdennykh kolebanii maiatnika s dvizhushcheisia
tochkoi podvesa: metod.ukazaniia k vypolneniiu laboratornoi raboty M-13 po
kursu obshchei fiziki
[Study of forced oscillations of a pendulum with a moving
point of suspension: guidelines for laboratory work M-13 on general physics].
Moscow, Bauman MSTU Publ., 1990, 16 p.
[4] Fetisov I.N. Izuchenie mekhanicheskogo rezonansa s pomoshchyu gal'vanometra
magnitoelektricheskoi sistemy [Study of mechanical resonance with a galva-
nometer of magnetoelectric system].
Sb. trudov XII Mezhdunarodnoi uchebno-
metod. konf. «Sovremennyi fizicheskiy praktikum».
[Proc. XII Int. Method.
Conf. "Modern physics practicum"]. Moscow, Moscow Phys. Soc. Publ., 2012,
p. 121.
[5] Fetisov I.N.
Fizicheskoe obrazovanie v vuzakh — Physics in Higher Education
,
2014, no. 1, pp. 63–65.
[6] Vvedenskii B.A., Vul B.M., eds.
Fizicheskiy entsiklopedicheskiy slovar'
[Physi-
cal Encyclopedic Dictionary]. Vol. 3. Moscow, Sovetskaya Entsiklopediya
Publ., 1963, 624 p.
[7] Fetisov I.N.
Mekhanicheskiy rezonans
[Mechanical resonance]. Moscow, Bauman
MSTU Publ., 2013, 31 p.
Fetisov I. N.
(b. 1931) graduated from Lomonosov Moscow State University, Physics
Faculty in 1955. Ph.D., Assoc. Professor of the Physics Department in Bauman Moscow
State Technical University. Research interests include biophysics of the vision, millime-
ter radio waves, experimental methods of physical measurements, laboratory session.
e-mail:
