【摘要】 本文介绍一种能给出两个正交正弦波的简单振荡器电路。频率范围１Ｈｚ～１００ＭＨｚ，而且每１０倍频程都可通过电压控制。该电路由两个９０°移相级组成，移相级采用有源全通滤波器和一个反相器构成一个反馈环路。虽然该电路是为研究带电粒子旋转运动而设计的，但也适用于一般场合。更多还原

【Abstract】 Abstract：simple sine wave oscillatcr delivering two signals in quadrature has been de-veloped，covering the frequency range from below 1 Hz to 100 MHz and being voltage-con-trollable over each frequency decade. The circuit consists of two 90°phase shift stages usingactive allpass filters and an inverter，all arranged in a feedback loop．Although general appli-cation is envisaged’the design is particularly suitable in particle electrorotation studies.更多还原