vibroscope

plural vibroscopes

1. An instrument, in various forms, for observing, measuring, or tracing vibrations.

   Varying the frequency of vibrator, displacement of vibrations were recorded by the vibroscopes

   1964, Quarterly Report of RTRI

   2 more examples

   A vibroscope system built in our laboratory was used for determining the linear density of the extremely fine Kevlar 49 filaments

   1986, Hanchang Felix Wu, Lifetime statistics for single Kevlar 49 filaments in creep-rupture

   Vibroscopes are therefore designed with either a variable frequency range to allow the measurement of the fundamental frequency of vibration of a fixed short length of fibre

   2012, V.B. Gupta, V.K. Kothari, Manufactured Fibre Technology

2. historicalAn animation device resembling the phenakistoscope.

   The vibroscope must of course resolve the luminous curve into a single point of light, which, according to the direction of the apparatus, appears slowly to complete the vibration in a positive or negative direction

   1867, English Mechanic and Mirror of Science and Art