“Wien bridge”的概念、定义、翻译、参考文献-科学参考

Wien bridge

Electronics and Electrical Engineering

单词	Wien bridge
释义	Wien bridge Electronics and Electrical Engineering A four-arm bridge that is used for the measurement either of capacitance or frequency. A typical network is shown in the diagram. At balance, when a null response is obtained from the indicating instrument, $\frac{C_{x}}{C_{s}} = (\frac{R_{b}}{R_{a}}) - (\frac{R_{s}}{R_{x}})$ $C_{s} C_{x} = \frac{1}{ω^{2} R_{s} R_{x}}$ where ω is the angular frequency. For the measurement of a frequency f, it is convenient to make C_s = C_x, R_s = R_x, and R_b = 2R_a so that $f = {(2 π C R)}^{- 1}$ Wien bridge
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