P1.7.2.1
© by LD DIDACTIC GmbH · Leyboldstrasse 1 · D-50354 Huerth · www.ld-didactic.com
Phone: +49-2233-604-0 · Fax: +49-2233-604-222 · E-mail: info@ld-didactic.de · Technical alterations
reserved
Me
xanika
A
kustika
Tor tebranishi
Torning tebranish
chastorasining tor
uzunligiga va tarangligiga
bog’liqligini aniqlash.
CASSY Lab 2 tomonidan tavsiflangan.
Namunalarni ishga tushirish va parametrlarni
o’zgartirish uchun CASSY Lab 2 help –yordamchi
ma’lumotnomasidan foydalaning.
CA
S
S
Y
La
b 2
(
2
01
3
-06
-07
)
CASSY Lab 2
© by LD DIDACTIC GmbH · Leyboldstrasse 1 · D-50354 Huerth · www.ld-didactic.com
Phone: +49-2233-604-0 · Fax: +49-2233-604-222 · E-mail: info@ld-didactic.de · Technical alterations reserved
185
String vibrations
Pocket-CASSY
dasturida bajariladi
Tajriba tavsifi
Tor tarang tortilganda tor uzunligi L u tarqatadigan mexanik to’lqinning uzunligining yarmiga teng bo’ladi: L = /2.
Shuning uchun torning asosiy toni chastotasi quyidagicha aniqlanadi
f = c/(2L)
bu erda c tor bo’ylab tarqaladigan to’lqin fazasi tezzligi. Faza tezligi taranglik kuchi F, tor ko’ndalang kesimi yuzasi S
va tor zichligiga bog’liq
c
2
=
F/(Aρ)
Tajribada tebranish chastotasi f va mos holda tovush balandligi tor uzunligi hamda taranglik kuchi funksiyasi sifatida
o’lchanadi. Buning uchun CASSY 2 T tebranish davrini o’lchash uchun katta aniqlikdagi
sekundomer sifatida
qo’llaniladi.
Tajriba qurilmasi (rasmga qarang)
T tebranish davri monoxordning yog’och rezonans qutisi va tor orasiga o’rnatilgan shoxsimon yorug’lik to’sgich bilan
o’lchanadi. Yorug’lik to’sgich CASSY-Sensor kirishi A ga taymer orqali ko’p ozakli kabel bilan ulangan.