Laboratorium Metrologii
Ćwiczenie nr 31
Cyfrowe pomiary czasowo- częstotliwościowych parametrów sygnałów.
PROTOKÓŁ
Bezpośrednie badanie częstotliwości
a)
fg |
fps |
f1 |
f2 |
f3 |
f4 |
f5 |
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fg - wyjście generatora podstawy czasu
fps - wyjście przerzutnika Schmitta
f1..f5 - kolejne wyjścia dzielnika częstotliwości
b)
fb |
fk |
∆kw |
γkw |
γσsz |
γo |
γ∑ |
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c)
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Tp |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
Sygnał prostokątny |
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Sygnał sinusoidalny |
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d)
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Tp |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
Sygnał prostokątny |
10s |
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100s |
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Sygnał sinusoidalny |
10s |
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100s |
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e)
Tp=1s
MTx |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
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2. Pośrednie pomiary częstotliwości poprzez pomiar okresu i okresu średniego.
a)
fx=101Hz
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fb |
fk |
∆kw |
γkw |
γσsz |
γo |
γ∑ |
Sygnał prostokątny |
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Sygnał sinusoidalny |
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b)
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Tp |
fmin |
fmin+5% |
fb |
fk |
∆kw |
γkw |
γσsz |
γo |
γ∑ |
Sygnał prostokątny |
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Sygnał sinusoidalny |
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c)
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fb |
fk |
∆kw |
γkw |
γσsz |
γo |
γ∑ |
Sygnał prostokątny |
10 okresów |
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100 okresów |
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Sygnał sinusoidalny |
10 okresów |
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100 okresów |
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d)
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Tp |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
Sygnał prostokątny |
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Sygnał sinusoidalny |
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e)
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Tp |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
Sygnał prostokątny |
10s |
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100s |
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Sygnał sinusoidalny |
10s |
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100s |
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f)
Tp=1s
MTx |
fmax |
fmax-5% |
fb |
fk |
∆kw |
γkw |
γo |
γsum |
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3. Pomiar stosunku częstotliwości
fw |
fx |
fw/fx |
fw/fx (C571) |
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