Redundancy analysis We consider the circuit described by Figure 13.24.

1. We want to determine the passive structural redundancies of this circuit.
You will address this question by two different approaches:
• by an algebraic Input-Output study,

• by drawing the fault table of this circuit.
2. Find the conditions leading to the masking of fault detection, and the conditions leading to the masking of diagnosis.

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b 2 4 C 3 6 11 10 12 15 5 7 09 13 D 14 Figure 13.24. Redundancy analysis 16 f g