|
|
|
| The Precise Measurement Method for Delay of Amplifiers Based on Four-parameter Sinusoidal Curve-fit Method |
| LIANG Zhi-guo,WANG Ya-ting,WU Ya-hui |
| National Key Laboratory of Science and Technology on Metrology & Calibration, Changcheng Institute of Metrology and Measurement, Beijing 100095, China |
|
|
|
|
Abstract Aiming at the problems in measurement of delay time of amplifiers, such as the large difference between two sampling signals, a novel measurement method based on four-parameter sinusoidal curve-fit method was presented. Based on turning the phase difference into time difference, the delay of amplifiers was measured. Some problems about measurement were discussed. They were the coarse errors of periodic phases, big errors of negative amplitude, modification of delay between two sampling channels of data acquisition its self, all of them were discussed and analyzed in details, and the resolution method were given out. The measurement uncertainty was analyzed. In experiment, both the validity and the feasibility of the measurement method were proved. The experiment showed that the delay of amplifiers has inherence stability itself, it is indifferent to the stimulus frequency, amplitude, and waveforms. The delay measurement method above can be applied in all the measurement of delay of the amplifiers, filters, attenuators, etc.
|
|
Received: 24 December 2018
Published: 10 October 2019
|
|
|
|
|
|
［1］黄俊钦. 静、 动态数学模型的实用建模方法［M］. 北京:机械工业出版社, 1988, 223.
［2］梁志国, 沈文. 数据采集系统通道间延迟时间差的精确评价［J］. 数据采集与处理, 1998, 13(2): 183-187.
Liang Z G, Shen W. Using Curve-fit Method to Calibrate Delay of Channels of Data Acquisition Systems［J］. Journal of Data Acquisition & Processing, 1998, 13(2): 183-187.
［3］梁志国. 数字示波器大触发延迟时间的量子化测量方法［J］. 计量学报, 2018, 39(1): 94-98.
Liang Z G, A novel digitizing measurement method for large trigger delay of digital oscilloscopes［J］. Acta Metrologica Sinica,2018, 39(1): 94-98.
［4］梁志国, 杨仁福. 数字示波器大触发延迟时间的变频测量方法［J］. 计量学报, 2018, 39(2): 268-271.
Liang Z G, Yang R F.A novel Multi-frequency measurement method for large trigger delay of digital oscilloscopes［J］. Acta Metrologica Sinica, 2018, 39(2): 268-271.
［5］IEEE Std 1057—1994 IEEE standard for digitizing waveform recorders［S］. 1994.
［6］田社平, 王坚, 颜德田, 等. 基于遗传算法的正弦波信号参数提取方法［J］. 计量技术, 2005,(5): 3-5.
Tian S P, Wang J, Yan D T, et al. Base on inherit algorithmic sinusoidal parameter estimation［J］. Measurement Technique, 2005, (5): 3-5.
［7］梁志国, 朱济杰, 孟晓风. 四参数正弦曲线拟合的一种收敛算法［J］. 仪器仪表学报, 2006, 27(11): 1513-1519.
Liang Z G, Zhu J J, Meng X X.Convergence algorithm of four-parameter sine wave curve-fit［J］. Chinese Journal of Scientific Instrument, 2006, 27(11): 1513-1519.
［8］梁志国, 朱振宇. 非均匀采样正弦波形的最小二乘拟合算法［J］. 计量学报, 2014, 35(5): 494-499.
Liang Z G, Zhu Z Y. The Sinewave Fit Algorithm Based on Total Least-square Method with Non-uniform Sampling［J］. Acta Metrologica Sinica, 2014, 35(5): 494-499.
［9］梁志国. 一种四参数正弦参量估计算法的改进及实验分析［J］. 计量学报, 2017, 38(4): 492-498.
Liang Z G. The improvement and experiment analysis for a four-parameter sine wave curve-fit method［J］. Acta Metrologica Sinica, 2017, 38(4): 492-498.
［10］Deyst J P, Soulders T M, Solomon Jr O M. Bounds on Least-Squares Four-Parameter Sine-Fit Errors Due to Harmonic Distortion and Noise［J］. IEEE Transactions on Instrumentation and Measurement, 1995, 44(3): 637-642.
［11］梁志国. 正弦波拟合参数的不确定度评定［J］. 计量学报, 2018, 39(6): 888-894.
Liang Z G. The Measurement Uncertainty of Curve-fit Parameters of Sinusoidal［J］. Acta Metrologica Sinica, 2018, 39(6): 888-894.
［12］梁志国. 通道间延迟时间差的测量不确定度［J］. 计量学报, 2005, 26(4): 354-359.
Liang Z G. The Measurement Uncertainty of Delay Between Channels［J］. Acta Metrologica Sinica, 2005, 26(4): 354-359.
［13］Liang Zhiguo, Zhu Jijie. A Digital Filter for the Single Frequency Sinusoid Series［J］. Transaction of Nanjing University of Aeronautics & Astronautics, 1999, 16(2): 204-209.
［14］梁志国, 孟晓风. 残周期正弦波形的四参数拟合［J］. 计量学报, 2009, 30(3): 245-249.
Liang Z G, Meng X F. A Curve-fit Arithmetic of Four-parameter Sine Wave for Partial Period［J］. Acta Metrologica Sinica, 2009, 30(3): 245-249. |
|
|
|
2019, Vol. 40 
