| 精密的低频相位校准标准 |
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| 引用本文： | 乐伟达,胡新国,陈桂芳.精密的低频相位校准标准[J].应用科学学报,1985,3(4):336-340. |
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| 作者姓名： | 乐伟达 胡新国 陈桂芳 |
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| 作者单位： | 上海测试技术研究所 |
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| 摘 要： | 一种新型高精密低频相位校准标准已研制成功,它采用相位误差倍减技术,在20Hz~100kHz (点频)内,相移量范围是0~n×360°(n是整数),准确度为±(1×10-6×F±0.001)度,F为工作频率,单位为Hz.相移量分辨率为(3×10-8×F)度.输出信号实测的失真度优于1×10-4,幅度稳定度优于1×10-5/10min.
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| 收稿时间： | 1982-12-20 |
| 修稿时间： | 1984-06-20 |
PRECISION LOW FREQUENCY PHASE CALIBRATION STANDARD |
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| LO WEIDA,HU XINGUO,CHENG GUEIFAN.PRECISION LOW FREQUENCY PHASE CALIBRATION STANDARD[J].Journal of Applied Sciences,1985,3(4):336-340. |
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| Authors: | LO WEIDA HU XINGUO CHENG GUEIFAN |
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| Institution: | Shanghai Institute Of Testing Technology |
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| Abstract: | A new high-precision low frequency phase calibration standard has been developed by using a technique of phase error demultiplication. The frequency range is from 20 Hz to 100 kHz (discrete frequency). The phase shift is from 0 to (n×360) degrees, where n is an integer. Theresolution is (3×10-8×F) degrees, where F is in hertz. The accuracy is ±(1×10×F±0.001) degrees. The distortion is better than 1×10-5/10min. |
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