Ken Shirriff on Nostr: The attitude indicator uses 1960s-era electronics, with each angle transmitted over ...

The attitude indicator uses 1960s-era electronics, with each angle transmitted over three wires from a synchro. The indicator uses a servo loop for each axis, using a feedback loop to rotate the motor until the shaft angle matches the input angle. A "control transformer" compares its shaft angle to the electrical input and generates an error signal. The amplifier turns the motor as needed to eliminate the error.
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