tw34941224 发表于 2013-8-22 16:48

求助!excel fft算的加速度幅值和设备输出结果相差几个数量级why


excel计算设备输出
X:Time (Seconds)Y:(g)gY(Mag (g) (0-peak))_frm0
0.00E+001-9.36E-04-1.788543366025-1.7885433663.41E-05
2.00E-0325.73E-01-1.81484013226618-7.10049174683359E-002i-1.8162286215.76E-05
4.00E-0331.22E-01-1.8891091202351-9.29161204282177E-002i-1.8913927874.06E-04
6.00E-0343.91E-01-1.97143305978611-0.304851245434635i-1.9948640531.13E-03
8.00E-0356.02E-01-2.87351625562275+8.70907070515525E-003i-2.8735294532.11E-03
1.00E-026-2.02E-01-1.48240108975123-0.515020599309593i-1.5693180712.44E-03
1.20E-027-1.95E-01-0.470291436804119-1.85806516306345E-002i-0.4706583432.91E-03
1.40E-0281.50E-01-2.25181660072627-1.12460752363472i-2.517026043.97E-03
1.60E-0293.41E-02-6.19386219159302E-002+3.10200849893122E-003i-0.0620162513.15E-03
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