POLITECHNIKA RADOMSKA Wydz. Transportu
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LABOLATORIUM MIERNICTWA
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Data:
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Imię i nazwisko: |
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Grupa:
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Zespół:
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Rok akademicki:
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Nr ćwiczenia: 5
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Temat : Mostek Wheatstone'a . |
Ocena:
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Cel ćwiczenia .
Celem ćwiczenia jest pomiar rezystancji za pomocą mostka Wheatstone'a oraz poznanie właściwych zasad doboru elementów mostka .
Przebieg ćwiczenia :
Pomiar rezystancji mostkiem Wheatstone'a .
Schemat układu pomiarowego mostka Wheatstone'a .
R n |
R3/R4 |
R3 |
R4 |
R2(-) |
R2(+) |
R2śr |
R2(+)' |
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Rx |
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dz |
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% |
% |
% |
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1 |
10-3 |
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10 |
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10 |
10-2 |
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100 |
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100 |
10-1 |
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1000 |
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1000 |
1 |
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10000 |
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10000 |
10 |
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100000 |
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100000 |
100 |
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Badanie wpływu parametrów układu na błąd nieczułości .
U |
Rd |
Rx |
R3/R4 |
R2' |
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R2'' |
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V |
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dz |
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dz |
dz |
% |
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1000 |
10 |
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0 |
10000 |
1 |
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50000 |
1 |
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5 |
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100000 |
100 |
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1000 |
10 |
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5000 |
10000 |
1 |
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50000 |
1 |
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100000 |
100 |
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1000 |
10 |
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0 |
10000 |
1 |
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50000 |
1 |
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2 |
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100000 |
100 |
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1000 |
10 |
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5000 |
10000 |
1 |
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50000 |
1 |
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100000 |
100 |
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