AC bridge - AC bridge

Japanese: 交流ブリッジ - こうりゅうブリッジ(英語表記)AC bridge
AC bridge - AC bridge
A circuit in which four impedance elements are connected in a quadrilateral shape with an AC power source on one diagonal and a detector on the other diagonal is called an AC bridge circuit. The state in which no current flows through the detector is called an equilibrium state, and since it is known that there is a certain relationship between the four impedances at that time, it is used to measure unknown impedances using standard impedances. It can also be used to measure frequency. Depending on the type of impedance elements used, there are various types such as Maxwell bridges, Wien bridges, and Anderson bridges. Note that a bridge circuit consisting only of a DC power source and resistors is called a DC bridge, but the principle is similar.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
4個のインピーダンス素子を四辺形に結合し,一つの対角線上に交流電源を,他の対角線上に検出器を接続した回路を交流ブリッジ回路という。検出器に電流が流れなくなった状態を平衡状態と称し,そのとき4個のインピーダンスの間に一定の関係があることが知られているので,標準インピーダンスを使って未知のインピーダンスを測定するのに用いられる。そのほか周波数の測定にも使うことができる。用いるインピーダンス素子の種類によって,マクスウェルブリッジ,ウィーンブリッジ,アンダーソンブリッジなど各種のものがある。なお直流電源と抵抗のみから成るブリッジ回路を直流ブリッジというが,原理的には同様である。

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