A new technique is proposed to measure mechanical torque of rotating machinery via computer processing. This aim is pursued performing an FFT-realisation of a differentiating FIR-filter by which the sampled speed step-like waveform, produced during a start-up transient of the motor, is processed. The derivative of the speed signal is executed directly in the frequency domain, so avoiding preventive manipulations of the step-like waveform in the time domain. Optimal results have been achieved from the point of view of processing speed and of reduction of the noise level.
Step-like waveform analysis to measure mechanical torques / Andria, G.; Savino, M.; Trotta, A.. - In: MEASUREMENT. - ISSN 0263-2241. - STAMPA. - 6:3(1988), pp. 107-111. [10.1016/S0263-2241(88)80003-4]
Step-like waveform analysis to measure mechanical torques
Andria, G.;Savino, M.;Trotta, A.
1988-01-01
Abstract
A new technique is proposed to measure mechanical torque of rotating machinery via computer processing. This aim is pursued performing an FFT-realisation of a differentiating FIR-filter by which the sampled speed step-like waveform, produced during a start-up transient of the motor, is processed. The derivative of the speed signal is executed directly in the frequency domain, so avoiding preventive manipulations of the step-like waveform in the time domain. Optimal results have been achieved from the point of view of processing speed and of reduction of the noise level.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
