PEM injection using Saker #1 IFI shaker
2025/04/18 6:37:00 - 06:47:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_9_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.1. showed the results.
PEM injection using Saker #2 IFI shaker
2025/04/18 6:48:00 - 06:58:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_10_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.2. showed the results.
PEM injection using Saker #3 IFI shaker
2025/04/18 6:59:00 - 07:09:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_11_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.3. showed the results.
PEM injection using Saker #4 IFI shaker
2025/04/18 7:10:00 - 07:20:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_12_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.4. showed the results.
7:21 - 7:41 silent run
PEM injection using Saker #4 IFI shaker
2025/04/18 7:42:00 - 08:19:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_12_EXC
110 - 130 Hz , 1Hz resolution, 100 s in each measurement, 100 cnt
During this measurement, I evaluated the transfer function
Fig.5. and Fig.6. showed the results.
PEM injection using Saker #4 IFI shaker
2025/04/18 8:19:00 - 08:55:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_12_EXC
110 - 130 Hz , 1Hz resolution, 100 s in each measurement, 100 cnt
During this measurement, I evaluated the transfer function, but due to the stop of control PC, we cannot save the results
115-120 Hz, the coherence between accelerometer and DARM became worse, some frequency conversion detected (wider line)
Analysis for
PEM injection using Saker #1 IFI shaker
2025/04/18 6:37:00 - 06:47:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_9_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.1. showed the results.
The IPC glitch times are removed in the projection.
Analysis for
PEM injection using Saker #2 IFI shaker
2025/04/18 6:48:00 - 06:58:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_10_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Analysis for
PEM injection using Saker #3 IFI shaker
2025/04/18 6:59:00 - 07:09:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_11_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.3. showed the results.
Analysis for
PEM injection using Saker #4 IFI shaker
2025/04/18 7:10:00 - 07:20:00
Excitation : K1:PEM-EXCITATION_MCF0_RACK_12_EXC
100 - 150 Hz , 1Hz resolution, 10 s in each measurement, 100 cnt
Fig.4. showed the results.
