Measurement Techniques

, Volume 9, Issue 5, pp 605–610 | Cite as

Measurement of angular-vibrations parameters

  • V. P. Shumilin


The equipment produced by us has the following characteristics: operating frequency range of 5–200 Hz; maximum oscillations amplitude of 5·10−4 rad for the upper limit of the frequency range, and of 10−2 rad for the lower limit; an error not exceeding 2% in measuring amplitudes which do not fall below 5·10−4 rad; and a nonlinear distortion coefficient not exceeding 1%.

The equipment is designed to produce a uniform rotation superposed by angular oscillations, thus reproducing the actual operating conditions of a torsiometer.

The method of a torsion pendulum with an electrodynamic drive serves to reproduce angular oscillations over a considerably larger frequency range than it is possible to attain by other methods. Moreover, this method produces the smallest nonlinear distortion coefficient.

The motor drive eliminates various difficulties related to the design and manufacture of an electrodynamic drive.

The equipment can be used as a reference instrument for testing and investigating torsiometers with moments of inertia up to 5·10−3 kg·m2. It can also be used as a basis for developing test racks.


Physical Chemistry Analytical Chemistry Lower Limit Actual Operating Oscillation Amplitude 
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Literature cited

  1. 1.
    Yu. I. Iorish, Vibrometry [in Russian] Mashgiz, Moscow (1963).Google Scholar
  2. 2.
    E. J. Nestorides, ed., A Handbook on Torsional Vibration, Cambridge U. P. (1958).Google Scholar
  3. 3.
    S. A. Pankratov, “Planetary vibrator for exciting torsional oscillations,” Author's Certificate No. 136221, Bulletin of Inventions No. 4 (1961).Google Scholar
  4. 4.
    K. V. Frolov, “Moving-coil vibrator for exciting angular oscillations,” Scientific Papers of the Moscow Technological Institute of the Light Industry, No. 29 (1964).Google Scholar
  5. 5.
    V. P. Shumilin, “Pendulum method for measuring angular oscillations,” Transactions of the VNIIM, No. 85 (145) (1966).Google Scholar
  6. 6.
    P. P. Makushin, “Computation of transverse oscillations in springs,” In a collection entitled Dynamics and the Strength of Spring [in Russian], AN SSSR Press (1950).Google Scholar

Copyright information

© Instrument Society of America 1967

Authors and Affiliations

  • V. P. Shumilin

There are no affiliations available

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