| 摘要 |
A self adjusting bridge circuit having a source of DC electrical power connected across two opposing corners of the bridge and having a first amplifier whose input circuit is interconnected across the other two opposing corners of the bridge wherein the output of the said first amplifier is connected to the input of a feedback amplifier, the output of which is connected back to one of said points of connection between the bridge and the input of the first amplifier, and wherein the current feedback from the feedback amplifier introduces negative feedback into the bridge.
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