Daim ntawv thov ntawm Suab Qib Meter Qhov hnyav hauv kev cai zaus
Nyob rau hauv AWA6228 multifunctional suab qib ntsuas thiab AWA6291 real-time teeb liab analyzer, ntxiv rau A, C thiab Z zaus qhov hnyav tus yam ntxwv tsim raws li tus qauv, tus neeg siv-txhais zaus qhov hnyav muaj nuj nqi ntxiv. Qhov ntsuas qhov hnyav yog teem rau ntawm qhov chaw octave zaus taw tes. Thaum lub ntsuas ntsuas ua 1/3 octave real-time spectrum tsom xam, ntsuas lub suab siab ntawm txhua 1/3 octave band yog qhov hnyav raws li qhov teeb tsa kev cai zaus Cov yam tseem ceeb yog qhov hnyav thiab tom qab ntawd muab tso rau hauv qhov kev cai hnyav suab qib.
Piv txwv li, nyob rau hauv JGJ / T 170-2009 "Lub Nroog Rail Transit Ua rau Lub Tsev Vibration thiab Secondary Radiated Noise Limits thiab Measurement Method Standards", nws yuav tsum ntsuas cov suab nrov sab hauv tsev theem nrab radiated nrog ntau zaus ntawm 16 Hz ~ 200 Hz, uas tuaj yeem siv cov kev cai zaus qhov hnyav, nyob rau hauv cov ntawv qhia zaub mov zaus qhov hnyav, teeb tsa qhov hnyav ntawm txhua 1/3 octave qhov chaw zaus nyob rau hauv qhov ntau zaus ntawm 16 Hz txog 200 Hz rau A teev los ntawm lub suab qib ntsuas tus qauv ntsuas qhov hnyav. (saib cov lus), thiab teeb qhov hnyav ntawm lwm qhov chaw zaus cov ntsiab lus rau -INF (ie -∞).
Lub ntsuas ntsuas yuav ntsuas tus kheej ntsuas qhov ntsuas lub suab siab thaum ntsuas lwm qhov ntsuas raws li qhov ntsuas qhov ntsuas tus kheej, thiab qhia nws nrog WU. Ntawm no, lub suab nrov sab hauv tsev hluav taws xob hauv qhov ntau zaus ntawm 16 Hz ~ 200 Hz tau nyeem ncaj qha. Lub suab siab tus nqi, uas tuaj yeem yog tus nqi tam sim, lossis qib suab sib npaug, qib suab siab tshaj plaws, lossis qib suab tsawg kawg nkaus.
