Tool/software:
I have a question about the laser, that should be used with the learning board 2:
I've heard that the LK-G5000 series of Keyence (LK-H022 or LK-H080) would be good.
If I had the opportunity to use an LK-G10, LK-G32 or LK-G082 (which are part of another Keysight series: LK-G), would these be equally valid choices for the laser to use with the learning board 2?
The sampling rate of e.g. the LK-G32 is "only" 50 kHz instead of 392 kHz of the LK-G5000, but this should be plenty for f < 20 kHz?
The other thing is the repeatability of the two series. The LK-G32 has 0,05 μm for a measurement range of ±5 mm, whereas the LK-H has 0,025 μm for ±10 mm, which is quite a bit better.
I'm not sure, whether there are other parameters, where the LK-G5000 excels over LK-G series, which are of relevance. What other parameters are important for the task at hand?
So, on paper the LK-022 is much better, but my question to you is: does this better performance offer real benefits if used with the learning board 2 to characterize speakers?
Is it necessary for the laser to sample the whole audible spectrum, also the higher frequencies, where speaker excursion gets smaller and smaller?
What exactly does the Learning board 2 with the information about the excursion?
Thank you in advance!
