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[ILUG-Social] using a notebook on the train?

[ILUG-Social] using a notebook on the train?

Padraig Brady padraig at antefacto.com
Mon Dec 3 19:45:45 GMT 2001


OK I got a new notebook:
http://www.dnuk.com/systems/quadra-141-1200c.html
which has a HD with the following specs:

--------------------------------------------
Vibration
--------------------------------------------
Operating      9.8m/s2 (1.0G) (5 to 400 Hz)
Non-Operating  49m/s2 (5.0G) (5 to 500 Hz)

--------------------------------------------
Shock
--------------------------------------------
Operating  1,715m/s2 (175G) (2ms)
Non-Operating  (800G) (2ms) (120G) (11ms)

Note IBM give ratings like:
Random (RMS) 0.67 G (5-500 Hz)
Swept swine  1 G 0-peak (5-500 Hz)
So this suggests and even smaller
typical operating vibration window :-(

Anyway I'm wondering about the operating vibration
when using the train. On the intercity sligo
line the carriages were bought in 1956!
http://www.cie.ie/html/news/media/oirail.html
And there is a VERY noticable vibration at
about 10Hz I'm guessing, and it's seems very
close to 1G, as my finger is tapping the table
(though due to the springiness of my finger I
can't be sure).

So my question is, is there any way I can test
the vibration level?
Could I make/buy a 4 legged springy stand for it?
Would it be easier to lobby government for new
carriages?
Am I being too careful with my new toy?

thanks
Padraig.





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