在用拉普拉斯变换测量交流阻抗的技术中,提出了用一次函数作为瞬态曲线在每个取样间隔内的近似表达式,导出了数值积分的公式,用各种等效电路验证了一次函数近似表达式的精确性。用 BASIC 语言编写了计算程序。
A technique for determining ac impedance by Laplace transformation was proposed.In this technique,a linear function was suggested as an approxi- mation of transient curve in each sampling interval.Formulas for numerical integration in time domain were derived,and the accuracy of approximate expression of linear function was verified using various equivalent circuits.A computing programme with BASIC language was worked out.
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