Advantech PCI-1780U handleiding
Handleiding
Je bekijkt pagina 29 van 40
23 PCI-1780U User Manual
Chapter 3 Functions Details
This method is suitable if the counter clock signal frequency is much smaller (< 0.1%)
than the internal clock frequency. Measuring accuracy degrades as the counter clock
signal frequency increases.
Counting Number of Pulses in Fixed Duration
In this method, the pulse number of the counter clock signal is measured in a fixed
time duration. The frequency of the signal is then calculated by dividing this number
by the time duration. This is shown in Figure 3. 8 and by the following equation.
Figure 3.8 Frequency measurement by counting number of pulses in fixed
duration
For counter clock signal frequency higher than that specified in the previous section,
this method gives a more accurate result.
Frequency
PulseNumber
t
DUR
------------------------------------=
Bekijk gratis de handleiding van Advantech PCI-1780U, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Advantech |
| Model | PCI-1780U |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 4254 MB |
