| 单词 | wien bridge |
| 释义 | > as lemmasWien bridge 1. Used as a modifier. Designating any of several electrical devices or circuits developed by Max Wien; esp. (in Wien bridge, Wien bridge circuit, etc.) a bridge circuit frequently used as a means of measuring capacitance; (also) an oscillator based on such a bridge circuit (see note).A Wien bridge consists of four branches, two of which are composed of single resistors, one of a resistor and capacitor in parallel, and one of a resistor and capacitor in series.The Wien bridge forms the basis for the Wien bridge oscillator, which produces a sinusoidal signal and is often used in audio signal generators. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > electronic circuit > [noun] > circuits measuring specific properties bridge1865 bridge circuit1871 Wien bridge1894 the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > oscillator > types of multivibrator1919 squegger1921 relaxation oscillator1931 sweeper1967 Wien bridge oscillator1967 1894 Electr. World 1 Dec. 577/2 An instrument was suggested based on the Wien optical telephone, in which the acoustic signals are transformed into optical ones and then registered photographically. 1912 Jrnl. Inst. Electr. Engineers 49 423 By using a Wien's bridge with equal resistance arms of about 2,000 ohms, the three air condensers could be put in parallel in the fourth arm. 1947 Proc. Royal Soc. 1946–7 A. 188 400 The resistance was measured by a Wien bridge circuit. 1967 Electronics 6 Mar. 63/3 (advt.) Here, the RA-240 is used in the design of a highly stable, uncompensated Wien bridge oscillator. 1976 Nucl. Instruments & Methods 138 562/1 The audio oscillator is a standard Wien bridge circuit. 2015 Sensors 15 2700 During measurements, the Wien Bridge was driven by an AC voltage. < as lemmas |
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