piclist 2001\01\02\071402a >
Thread: Use in a rocket altimeter
face BY : mike@spam@@whitewing.co.uk

On Tue, 2 Jan 2001 00:46:23 +0200, you wrote:

>For the dead time on the pad, imho consider compressing the initial
>readings if they are below a set threshold. You'd trigger logging if the
>threshold is exceeded (launch).
>PS: Most electronics (including most hard disks) withstand 20G shocks.
>32kHz tuning fork crystals do not. RC clocks are the best but you may have
>surprizes with ceramic capacitors which become piezo elements at such G's.
>Use good quality SMD ones.
..and avoid any caps that have a '5' in the dielelectric type.
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Subject (change) Use in a rocket altimeter

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