electronics.wheatstone_bridge

Functions

wheatstone_solver(→ float)

Calculate the unknown resistance (Rx) in a Wheatstone bridge circuit.

Module Contents

electronics.wheatstone_bridge.wheatstone_solver(resistance_1: float, resistance_2: float, resistance_3: float) → float

Calculate the unknown resistance (Rx) in a Wheatstone bridge circuit.

Wheatstone Bridge is an electrical circuit used to accurately measure an unknown resistance by balancing two legs of a bridge circuit.

This function calculates Rx when the three other resistances in the bridge are known. The bridge is said to be balanced when no current flows through the galvanometer connected between the midpoints of the two voltage dividers. * # https://en.wikipedia.org/wiki/Wheatstone_bridge

Circuit Diagram:

R1 R2

+–///–+–///–+ | | |

Vin Vg Vout

| |

+–///–+–///–+

R3 Rx

Balance condition:

R1 / R2 = R3 / R4

This solver uses the balanced bridge formula: Rx = (R2/R1) × R3

Args:

resistance_1 (R1): First known resistance resistance_2 (R2): Second known resistance resistance_3 (R3): Third known resistance

Returns:

float: The calculated unknown resistance (Rx)

Applications: - Measurement of unknown resistance - Strain gauge circuits - Sensor calibration

Usage examples: >>> wheatstone_solver(resistance_1=2, resistance_2=4, resistance_3=5) 10.0 >>> wheatstone_solver(resistance_1=356, resistance_2=234, resistance_3=976) 641.5280898876405 >>> wheatstone_solver(resistance_1=2, resistance_2=-1, resistance_3=2) Traceback (most recent call last):

…

ValueError: All resistance values must be positive >>> wheatstone_solver(resistance_1=0, resistance_2=0, resistance_3=2) Traceback (most recent call last):

…

ValueError: All resistance values must be positive