Re: using a current to measure a time interval

I posted it there too.

The device is a UNILAB Stopclock (513.051) http://www.unilab.co.uk/time.htm

I can't find anything more unfortunately :|

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote in
message news:qn9uo1p633sat16998ln6j38ao41momuj1@xxxxxxxxxx
> On Thu, 1 Dec 2005 16:22:58 +0000 (UTC), "Panther" <black@xxxxxxx>
> wrote:
>
>>Hi,
>>
>>I am making something to measure how much time two objects are in contact
>>when one of them is accelerated towards the other. To do this, I'm going
>>to
>>put a wire on one object and another on the other, and make the objects
>>complete the circuit when they touch obviously. What happens with this is
>>is
>>these wires link to a stopclock/watch (i can give the model name if you
>>want) and this stopwatch starts timing when it receives a current and
>>stops
>>when it receives ANOTHER current. I mean, you give it a current. Starts
>>time. You "break the circuit." It still times. You give it another
>>current,
>>it stops. This isn't useful because I need it to start timing when it
>>receives a current and stop when that current is taken away (as the
>>objects
>>are no longer in contact; no more current).
>>
>>What can I do to make this work? Is there anyway I would generate/make a
>>current come when the circuit is broken? How does a potential divider fit
>>into this? I am grateful for help. Thank you.
>>
>
> Probably belongs on sci.electronics.basics
>
> If you can provide a link to the stopwatch that would help.
>
> ...Jim Thompson
> --
> | James E.Thompson, P.E. | mens |
> | Analog Innovations, Inc. | et |
> | Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
> | Phoenix, Arizona Voice:(480)460-2350 | |
> | E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
> | http://www.analog-innovations.com | 1962 |
>
> I love to cook with wine. Sometimes I even put it in the food.


.

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