Universal CLP-100NI-NPRT Instrukcja Użytkownika Strona 21

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 87
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 20
Chapter 3 Digitizer Basics
NI 5102 User Manual 3-2 ni.com
Analog Bandwidth
Analog bandwidth describes the frequency range (in hertz) in which a
signal can be digitized accurately. This limitation is determined by the
inherent frequency response of the input pathfrom the tip of the probe
to the input of the ADCwhich causes loss of amplitude and phase
information. Analog bandwidth is the frequency at which the measured
amplitude is 3 dB below the actual amplitude of the signal. Figure 3-2
illustrates the effect of analog bandwidth on a high-frequency signal.
The result is a loss of high-frequency components and amplitude in the
original signal as the signal passes through the digitizer.
Figure 3-2. Analog Bandwidth
Bandwidth
+2 V
+1 V
0V
0V
+1/2 V
–1/2 V
–1 V
–2 V
Input Signal Instrument Measured Signal
abc abc
Przeglądanie stron 20
1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 86 87

Komentarze do niniejszej Instrukcji

Brak uwag