Categories
Electrical measurement
Wheatstone bridge, accuracy class, range extension and internal-resistance determination. Strain-gauge technology has its own cluster.
04available
Choose the measuring circuit, enter the instrument data and check the uncertainty against the requirement.
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Calculators in this category
01Busch 2006, Gleichung zur Wheatstone-Abgleichbedingung
Balanced Wheatstone bridge
Determine an unknown resistance from three known bridge resistors at null balance.
Open calculator →02Busch 2006, Abschnitt 10.2 Genauigkeitsklasse
Meter error from accuracy class
Determine absolute error limit and relative error of an analogue current reading from class, range end and indicated value.
Open calculator →03Busch 2006, Abschnitt 10.3 und Aufgabe 10-10
Ammeter range-extension shunt
Calculate the parallel resistor that bypasses most current around an existing ammeter movement.
Open calculator →04Busch 2006, Abschnitt 4.1.4 Der Grundstromkreis, Gl. (4.9)/(4.10)
Source internal resistance from two load points
Determine a real source's internal resistance from two measured terminal-voltage/current pairs, without knowing the open-circuit voltage.
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