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Matsayin Hadisi na Adadin Yanzu a Ziyartar Laplace (Dalilai da Misauna)

Electrical4u
فیلڈ: Karkashin Kuliya da Dukkana
0
China

Final Value Theorem In Laplace Transform

A cikin hanyar ƙwarewa na farko, kuma tsari, da kuma sassan, ba zai iya gani da yawa adadin daɗi na lokaci f(t) daga F(s), wanda yake da ita a kan bayanin. Yana da kyau a nemi in samun yadda tana faru ko kuma yadda tana ƙare da yawan lokacin f(t) ko kuma ƙwarewar ita, bili mai suna da yawan lokacin f(t). Zan iya duba waɗannan abubuwa a kan wannan takardun.

Tambayar:
Idan F(s) an tabbata, za a son in sanin F(∞), bili mai suna da yawan lokacin f(t), wanda yake da ita a kan ƙwarewa na biyu, lokacin da t→ ∞. Wannan zai iya a yi ne da amfani da siffofin ƙwarewa na biyu, wanda ake kira Final Value Theorem. Siffofin ƙwarewa na biyu da kuma siffofin ƙwarewa na farko suka kiran Siffofin Limitin.

Makarantar Siffofin ƙwarewa na biyu na ƙwarewa na biyu

Idan f(t) da f'(t) su biyu ƙwarewan, sF(s) ba da ƙwarewa a jw axis ko kuma a R.H.P. (Right half Plane) don haka,

Bayanin Siffofin ƙwarewa na biyu na ƙwarewa na biyu
Zan iya sanin siffofin ƙwarewa na biyu:

Shawarwari
A nan ana amfani da ƙwarewa 0 don inganta masu hasken da ke taka a t = 0
Don haka muna ƙwarewa s → 0. Don haka e-st → 1 kuma ƙwarewa yana nufin


Misalai na Siffofin ƙwarewa na biyu na ƙwarewa na biyu
Za a nemi ƙwarewar biyu na F(s) bili mai suna da yawan lokacin f(t)

Amsa


Amsa

Shawarwari
Tara a nan ƙwarewa na biyu ya fi karfi. Amma muna iya samun ƙwarewar biyu ta hanyar Siffofin.

Amsa
Shawarwari
A Misali 1 da 2 muna duba alamomin da suka haɗa, amma suka haɗa duk. Saboda haka ba muna ci ƙarin bayanin. Amma a nan sF(s) yana da ƙwarewa a R.H.P saboda yana da ƙwarewa a tsakiyar.
Saboda haka ba zan iya amfani da Final Value Theorem.

Amsa
Shawarwari
A misalin sF(s) yana da ƙwarewa a jw axis. +2i da -2i musamman.
Saboda haka ba zan iya amfani da Final Value Theorem da kuma.

Amsa
Shawarwari


Abubuwa da za a ƙara:

  • Don amfani da Siffofin ƙwarewa na biyu muna ƙara in tabbatar da f(t) da f'(t) su biyu ƙwarewan.

  • Muna ƙara in tabbatar da ƙwarewar biyu yana da shi. Ba zai iya ƙara ƙwarewar biyu a wasu yanayi

Idan sF(s) yana da ƙwarewa a tsakiyar.
Idan sF(s) yana da ƙwarewa a jw axis.
Idan sF(s) yana da ƙwarewa a asibiti.

  • Don haka muna amfani da

A misalin sF(s) yana da ƙwarewa a asibiti.
Saboda haka ba zan iya amfani da Siffofin ƙwarewa na biyu da kuma.
Kyau na Biyu
Za a ƙara in tabbatar da sF(s) yana da ƙwarewa ko kuma. Idan yana da ƙwarewa, ba zan iya amfani da Final Value Theorem da kuma ƙwarewar biyu yana da shi.

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