Arrangement for testing products by random and harmonic vibrations

摘要

Arrangement for testing products by random and harmonic vibrations which contains a multi-channel conditioner (1) for a random signal, a reversible barrier filter (6) attached to the output of the conditioner (1), a vibration generator (9) attached to the output of the filter (6) via a series circuit of a summing integrator (7) and a power amplifier (8), a first and a second reversible filter (12 and 13), and a spectrum analyser, coupled to the first reversible filter (13), for a signal. The system is provided with a generator (18) for a harmonic signal of variable frequency, the spectrum analyser for a signal being constructed in the form of an analyser for a harmonic signal and having a control circuit for a harmonic signal and, connected to this control circuit, a control circuit for a random signal. IMAGE