这种方法的误差取决于幅频特性曲线的标定精度。
The error depends on the calibration accuracy of the amplitude response.
另一方面，改进原有的标定方法，简化标定过程，提高标定精度。
On the other hand, the old calibrating method will be improved, simplifying the calibration process, improving the calibration precision.
由于测量的精度最终要受到标定精度的限制，本文引入了一种新的标定方法。
Since the ultimate measuring accuracy is limited by the accuracy of calibration, a new method of calibration is proposed in this paper.
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