I measured the transfer function and Q factor of Roberts Linkage of which depth is 250mm.
The results were as follows.
Fig1 | Fig2 | |
COM position [mm] | 80 | 37 |
Resonant Frequency [Hz] | 0.33 | 0.20 |
Q factor | 2240 | --- |
I measured the resonant frequency by fitting transfer function. The results were attached.
I measured Q factor by ring down curve.
I can't measured Q factor of which COM position is 37mm, because ring down curve is affected by the another axis' motion.
I tryed doing FFT to ring down curve of which COM position is 37mm.
The result related to ring down curve were also attaced.