Dab tsi yog kev hloov pauv ntsug?
Dab tsi yog kev hloov pauv ntsug?

Video: Dab tsi yog kev hloov pauv ntsug?

Video: Dab tsi yog kev hloov pauv ntsug?
Video: Koj saib kuv tsis muaj nqis - Nkauj tawm tshiab 2021-22 2024, Kaum ib hlis
Anonim

A ntsug hloov yog thaum daim duab qhia txav mus ntsug , nce los yog nqis. Qhov kev txav yog txhua yam raws li qhov tshwm sim rau y-tus nqi ntawm daim duab. Lub y-axis ntawm lub dav hlau coordinate yog qhov ntsug axis. Thaum muaj nuj nqi hloov vertically , y-tus nqi hloov.

Yog li ntawd, ua li cas koj thiaj nrhiav tau qhov kev hloov ntsug?

B pab koj xam lub sijhawm ntawm kev ua haujlwm. Yog tias koj faib tus C los ntawm B (C / B), koj yuav tau koj phase ua haujlwm . D yog koj li ntsug hloov . Cov ntsug hloov ntawm ib qho kev ua haujlwm trig yog tus nqi los ntawm qhov kev ua haujlwm trig yog transposed raws y-axis, lossis, hauv cov ntsiab lus yooj yim, tus nqi nws yog ua haujlwm nce lossis nqis.

Tsis tas li ntawd, koj ua li cas hloov txoj haujlwm sab laug thiab sab xis? Tsiv sab laug thiab sab xis Qhov no yeej ib txwm muaj tseeb: To ua haujlwm a muaj nuj nqi sab laug , ntxiv rau hauv lub muaj nuj nqi sib cav: f (x + b) muab f (x) ua haujlwm b mus units sab laug . Hloov chaw mus rau txoj cai ua haujlwm tib yam; f (x – b) yog f (x) ua haujlwm b mus units txoj cai.

Kuj paub yog, dab tsi yog qhov ntsug stretch?

A ntsug stretching yog cov ncab ntawm daim duab deb ntawm x-axis. A ntsug compression (los yog shrinking) yog qhov nyem ntawm daim duab mus rau x-axis.

Puas yog amplitude ib txwm zoo?

Cov amplitude lub ncov amplitude ntawm nthwv dej los yog kev vibration yog ib qho kev ntsuas ntawm kev sib txawv ntawm nws qhov tseem ceeb. Amplitudes yog ib txwm zoo tus lej (piv txwv li: 3.5, 1, 120) thiab yeej tsis muaj qhov tsis zoo (piv txwv li: -3.5, -1, -120).

Pom zoo: