000003381 001__ 3381
000003381 005__ 20141118153401.0
000003381 04107 $$acze
000003381 046__ $$k2005-05-09
000003381 100__ $$aTůma, J.
000003381 24500 $$aTransmission error measurements using the real time Hilbert transformer

000003381 24630 $$n11.$$pENGINEERING MECHANICS 2005
000003381 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000003381 506__ $$arestricted
000003381 520__ $$2eng$$aThe paper deals with the problem of angular vibration measurements. The source of information about angular vibrations is an incremental rotary encoder producing a string of impulses or another impulse generator. It is supposed that the impulse frequency is changed proportionally to the rotational frequency. The time record of an impulse signal is transformed to an analytical signal using the Hilbert transform. The approach to perform the Hilbert transform based on the FIR filter is discussed. The unwrapped phase of the analytical signal gives the rotation angle. Signals that are disturbed by noise are enhanced by filtration in the frequency domain. The measurement method described in the paper can be employed for inspection of the simple gear train transmission error as a tool for improving the design of the tooth profile and for quality control. The described signal processing method results in the time history of the transmission error during the few complete gear revolutions.

000003381 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003381 653__ $$a

000003381 7112_ $$aENGINEERING MECHANICS 2005$$cSvratka (CZ)$$d2005-05-09 / 2005-05-12$$gEM2005
000003381 720__ $$aTůma, J.
000003381 8560_ $$ffischerc@itam.cas.cz
000003381 8564_ $$s477344$$uhttps://invenio.itam.cas.cz/record/3381/files/Tuma-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000003381 962__ $$r3238
000003381 980__ $$aPAPER