search

EZ Digital OS-3060D Specifikace Strana 72

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 114
  • Tabulka s obsahem
  • KNIHY
    • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 71
A 8
c A
8
(a) roms DIvIS ION
r~
~T-~
l
I
I
I
i
,
,
I I
!
i
1
I
.
1
f-t-
....
+ •
1-+
+1
1
+1
~
'H
•
i
'r
I
lb) 2mS DIvIS ION
Fig.
2-18
. TIME INTERVAL MEASUREMENT
2-3-3. Freq uency Measurement
Whe n an accurate mea
sur
ement is needed, a frequency counter shall be
used.
If
you have the frequency cou nter connected to the CH I
OUT
PUT
connector [20] on the rear panel
of
the oscilloscpe, you will enjoy the
convenience
and
advantage to perform both the waveform observing
and
frequency measurement simultaneously. However, w
hen
a frequency counter
is not available, the oscilloscope can directly measure the
modulat
ed
wavef
orm
that
can
hardly be measured by
means
of
a frequency counter,
or
the waveform bearing a lot
of
noise.
Frequ
ency is interrelated to the
period. First of all, in brief, you can simply
obtain
the frequency by
calculating with I/t as
suming
that
you' have already known the period t
appearing in section 2-3-2
Tim
e
Int
erval
Mea
surement.
With
applying the
formula of
1/t.
when
period is depicted in seconds, the frequ ency is
Hertz
rH
z) ; period in millise
cond
svms) yields frequency in
kil
oh
ertzC
kf-lz
r . period in microsec
ond
s (
IlS)
yields fr
equ
ency in
rnegahertz t.Ml-lz).
Th
e accuracy
of
frequency is determined by an accurate calibration
of
the timebase
and
careful mea
surement
of the period.
72
Zobrazit stránku 71
1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 113 114

Komentáře k této Příručce

Žádné komentáře
  • Structured Cable Products Winbest Elo BONAIRE MK Digital
  • CNET Sítě Fluke Stroj na snižování hluku Eton Energetické banky Quantum Software pro obnovení zálohy George Foreman Měření, testování a kontrola
  • Sony D-EJ1000 Jvc KD-G612 Panasonic RQL51 Zanussi ZEE6041XA BURY CC 9060 Plus
  • Silvercrest SHBS 1000 A1 Uživatelský manuál Jvc KD-R901 Uživatelský manuál Acer Nitro AN515-52 Uživatelský manuál IBM 43W7746 Datový list Century 80GL Návod k obsluze