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Theory of Operation
VECTOR RATIO DETECTOR THEORY
8. Theory of Operation
VECTOR RATIO DETECTOR THEORY
The A8 board is the vector ratio detector. The vector ratio detector converts the AC
voltages from the transducer group into digital data.
Figure 8-6 Vector Ratio Detector Group Simplified Block Diagram
A8 Vector Ratio Detector
The A8 vector ratio detector converts the “Edut” or “Err” signal from the A3 into an equal
phase IF signal by mixing with the fm+fIF signal from the A7. The IF signal is converted
into two 5 kHz signals proportional to its orthogonal vector components. The A-D
Converter converts the 5 kHz signal into digital data.
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