48
1.15- rasm. Ideal (a, b, v) va real (g, d, e) differensiallovchi zvenoning
harakteristikalari:
a) ideal differensiallovchi zvenoning yugurish egri chizig’i; b) ideal
differensiallovchi zvenoning AFX si; v) ideal differensiallovchi zvenoning
logarifmik chastota harakteristikalari; g) real differensiallovchi zvenoning
yugurish egri chizig’i; d) real differensiallovchi zvenoning AFX si; e) real
differensiallovchi zvenoning logarifmik chastota harakteristikalari;
LACHX ni qurish uchun quyidagi ifoda ishlatiladi:
Izlanayotgan harakteristika ikkita asimptotadan iborat; ulardan biri 20 db
sog’ishga ega, ikkinchisi esa abssissalarga parallel.
ω
T
=1
/Tchastotada asimptotalar
tutashadi.
1.12–rasmda real va ideal differensiallovchi zvenolarning harakteristikalari
tasvirlangan. Ikkala zveno ham minimal fazali sistemalar sinfiga kiradi.