Re: Project Suggestions???

The transportation specification for the Energizer L91 states "Meets
requirements of 49CFR 173.185(b) and IATA special provisions A45." Don't
know what the hell that means....but I think they have internal fuses that
prevent them from exploding. Electronic devices are shipped all the time
that are running.

"Spehro Pefhany" <speffSNIP@xxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:5au271ho80h9fst0bv8v71ihng9kftgnsp@xxxxxxxxxx
> On Thu, 28 Apr 2005 23:47:52 GMT, the renowned "Thomas Magma"
> <somewhere@xxxxxxxxxxxxxxxxxx> wrote:
>
> >I always thought a good little project would be to send an accelerometer
> >through different mail services to see how your package was being
treated.
> >Here is how I would design it:
> >
> >A PICF676 connected to two ADXL321, a NX25P16, a MAX232 and a switch
> >(Energizer L91s and linear reg). The two accelerometers are to cover all
> >three axis. The PIC reads the three axis of the ADXL321s at a rate of
lets
> >say 100Hz. Take the maximum value during a one second period and store it
as
> >a single byte in the SPIFLASH (NX25P16). This will give you data every
> >second for a period of about two weeks with a .07 g's resolution. When
the
> >PIC senses the closure of the switch the data is read from the flash and
> >dumped across RS232 to a PC, where you can plot and analyze the data.
> >
> >I would build a couple or so, so you could get a few tests running in
> >parallel. I bet the data would be quite interesting.
> >
> >Thomas Magma
>
> Cute. This might violate hazardous materials shipping regulations--
> IIRC, batteries have to be insulated so no current can flow, and even
> then there are other issues. Ran into this with some quantity
> shipments by airfreight, but I believe it applies to mail as well. We
> ended up have to get chemistry reports on the (insulated in plastic
> dry cell) batteries and so on.
>
>
> Best regards,
> Spehro Pefhany
> --
> "it's the network..." "The Journey is the reward"
> speff@xxxxxxxxxxxx Info for manufacturers:
http://www.trexon.com
> Embedded software/hardware/analog Info for designers:
http://www.speff.com


.

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