parallel tebranish konturi

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6-laboratoriya ishi parallel tebranish konturining tadqiq etish ishning maqsadi - parallel tebranish konturining chastotaviy tavsiflarini, manbaning ichki qarshiligi va yuklanish qarshiligining chastotaviy tavsiflarga ta'sirini eksperimental tekshirish. 6.1. nazariy ma'lumotlar signallarni hosil qilish va ularni qayta ishlash uchun mo’ljallangan ko’pgina qurilmalar tarkibida parallel tebranish konturlari (ptk) mavjud. shulardan birining sxemasi 6.1,a-rasmda keltirilgan. ptkning kompleks o’tkazuvchanligi uning shoxobchalari kompleks o’tkazuvchanliklarining yig’indisiga teng bunda - aktiv o’tkazuvchanlik; - reaktiv o’tkazuvchanlik. konturda toklar rezonansi (tr) bo’lganda reaktiv o’tkazuvchanlik nolga teng bo’ladi (b = 0), (6.1) bu esa tr sodir bo’lishining shartidir. shu (6.1) tenglikning echimidan rezonans chastotaning qiymatlarini aniqlash uchun ifodani hosil qilamiz: (6.2) bunda - ptkning tavsifiy qarshiligi. tr (=r) bo’lgandagi ptkning qarshiligi maksimal qiymatga ega va quyidagi ifoda orqali aniqlanadi . (6.3) ptkning aslligi q=(r1+r2)ga teng. kichik quvvat isrofili (r12 f0 chastotalardagi grafiklari. 6.5.6. hisoblashlar va eksperiment natijalarini taqlil qilish bo’yicha qulosalar. 6. nazorat savollari va misollar 6.6.1. parallel tebranish konturi sxemasi …

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umumlashtirilgan rezonans nosozligi nima va u qanday aniqlanadiq 6.6.10. manbaning ichki qarshiligi va yuklanishning qarshiligi parallel tebranish konturining tanlovchanligiga qanday ta'sir etadiq 6.6.11. kichik quvvat isrofiga ega bo’lgan parallel tebranish konturining parametrlari l = 100 mkhn. va c = 400 pf. bo’lsa, uning rezonans chastotasi f0ni hisoblang. 6.6.12. parametrlari l = 100 mkhn, c = 400 pf. va r=5 . bo’lgan parallel tebranish konturining tavsifiy qarshiligi 1, aslligi q va rezonans qarshiligi rr ni aniqlang. 6.6.13. rezonans chastotasi f0 va ekvivalent aslligi qe = 100 bo’lgan parallel tebranish konturining o’tkazish oraliqi kengligini aniqlang. 6.6.14. rezonans chastotasi f0 = 500 khz, aslligi q = 100 va tavsifiy qarshiligi =500. bo’lgan parallel tebranish konturi ichki qarshiligi rvyuk=50 k. bo’lgan manbaga ulangan. o’tkazish oraliqi 20 khz. bo’lishi uchun yuklanish qarshiligi qanday bo’lishi kerak? image4.wmf oleobject3.bin image5.wmf oleobject4.bin image6.wmf oleobject5.bin image7.wmf oleobject6.bin image8.wmf oleobject7.bin image9.wmf oleobject8.bin image10.wmf oleobject9.bin image11.png image12.wmf oleobject10.bin image13.wmf oleobject11.bin image14.wmf …

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, 0 / 1 / 1 2 2 2 2 2 1 = + - + c r c l r l r r r r w w w w , 1 2 2 2 2 1 2 r r lc r - - = r r w c l / = r 2 1 2 1 2 1 r r r r g r r r + + = = r ( ) 2 1 2 2 1 2 r r q qp r r r p + = = + = r lc p / 1 0 = » w w ( ) ( ) , 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 x w w w w w w w w w w w w w w w w j r jq r p r j r c …

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6-laboratoriya ishi parallel tebranish konturining tadqiq etish ishning maqsadi - parallel tebranish konturining chastotaviy tavsiflarini, manbaning ichki qarshiligi va yuklanish qarshiligining chastotaviy tavsiflarga ta'sirini eksperimental tekshirish. 6.1. nazariy ma'lumotlar signallarni hosil qilish va ularni qayta ishlash uchun mo’ljallangan ko’pgina qurilmalar tarkibida parallel tebranish konturlari (ptk) mavjud. shulardan birining sxemasi 6.1,a-rasmda keltirilgan. ptkning kompleks o’tkazuvchanligi uning shoxobchalari kompleks o’tkazuvchanliklarining yig’indisiga teng bunda - aktiv o’tkazuvchanlik; - reaktiv o’tkazuvchanlik. konturda toklar rezonansi (tr) bo’lganda reaktiv o’tkazuvchanlik nolga teng bo’ladi (b = 0), (6.1) bu esa tr sodir bo’lishining shartidir. shu (6.1) tenglikning e...

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