LABORATORIUM METROLOGII
Imię i Nazwisko: |
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Grupa: |
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Data wyk. Ćwiczenia: |
Temat ćwiczenia: Pomiary oscyloskopem katodowym
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Zaliczenie: |
Ocena: |
Data: |
Podpis:
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Przyrządy użyte w ćwiczeniu:
1. Pomiar okresu sygnału
Z wewnętrznego generatora oscyloskopu zadać sygnał sinusoidalny o częstotliwości kilkunastu kHz. Dobrać tak podstawę czasu, aby można było wyznaczyć okres sygnału. Zaobserwo-wać obraz na ekranie dla różnych nastaw pokręteł VARIABLE (płynnej zmiany podstawy czasu).
Przebieg:
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Obliczenia okresu dla przebiegu z obrazka:
Ilość działek X ( lx)=
Sekund na działkę ( Ctx)=
T=lx * Ctx=
=
2. Pomiar sygnałów ze składową stałą
Z generatora wewnętrznego oscyloskopu zadać sygnał sinusoidalny ze składową stałą. Po przełączeniu przełącznika (AC/DC) na GND ustawić linię przebiegu tak, aby pokrywała się z linia narysowaną na skali oscyloskopu. Zaobserwować jaki wpływ na pokazywany obraz ma położenie przełącznika AC/DC.
Przebieg:
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3. Pomiary dwukanałowe:
Zaobserwować sygnał na wejściu dwójnika RC i wyjściu z tego dwójnika w zależności od zmiany jego parametrów. Na wejście podać sygnał prostokątny o częstotliwości 100Hz.
R1= C1=
R2= C2=
R3= C3=
Przebiegi:
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4. Pomiary między dwoma punktami nieuziemionymi:
Zaobserwować obraz dla położenia ADD przełącznika MODE
Przebiegi:
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5. Pomiary częstotliwości:
Za pomocą generatora zewnętrznego zbadać generator wewnętrzny oscyloskopu na każdym zakresie (pokrętło płynnej regulacji częstotliwości ustawić na 1). Częstotliwość wyznaczyć metodą krzywych Lissajus.
- częstotliwość sygnału na wejściu X
- częstotliwość sygnału na wejsciu Y
- liczba przecięć z linią poziomą
- liczba przecięć z linią pionową
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6. Pomiary sygnałów cyfrowych:
Obserwacja przebiegów na wejściu i wyjściu licznika
Przebiegi:
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7. Pomiar elementów półprzewodnikowych:
Za pomocą oscyloskopu zdjąć charakterystykę diody germanowej, krzemowej i LED.
Przebiegi:
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1