Science > Physics > SHM; MASS SPRING, Velocity, Energy, Resistor,Damping
| Topic: |
Science > Physics |
| User: |
"DarkStar" |
| Date: |
05 Dec 2006 01:40:13 PM |
| Object: |
SHM; MASS SPRING, Velocity, Energy, Resistor,Damping |
I am running an older power basic for dos under win95
or winxp and have found the following problems.
1. can not use more than 640K ram
even if I try to use VIRTUAL or HUGE.
DEF SEG function seems not to work for peek and poke.
2. I am collecting data one byte
at a time in ram up to 65540 bytes
and would like to know how to set aside
ram that will let me do this ?
Examples of saving large data segments one byte at a time to ram are welcome here
as fast ways to assemble and save such raw ram data to a file.
3. I preferr DOS to Windows for the
things that I do yet it is hard to
find any new computers that will run
DOS...how do the rest of you get around that ?
4. some shell commands such as date or time do not sem to work.
5. The intention here is to log data one sample
at a time in modulo fashion for 9 minutes of history at 65540/3600
samples per minute (pc tick counter rate) then on alarm to begin a linear
recording for 21 more minutes then at the end to
straighten everything out and save it to a file.
Data to be collected from a A/D converter on COM1.
It would be nice to collect more data into ram before saving
but power basic for dos will not access ram to 16MB
like it says it will.
6. I also need a basic source program to model the energy of a 10
pound weight on a spring with 1Hz SHM and zero damping. To consider
the deflection as a voltage then to extract the energy with a resistor
to add damping effects. The mass would be deflected upward from zero
maybe a milliinch at which it is released to oscillate
then the energy absorbed by the resistor till the weight is at rest.
That weight is at standard everything.
Based upon real energy transferr (I^2R) or (IE) and not just pure math.
The origial potential energy of a mass lifted 1milliinch
to be fully absorbed by a resitor over however many oscillations.
using mass velocity as a voltage.
I am trying to model the behavior of a geophone (velocity sensor).
If I have not properly communicated and you
want to know more or have the answers to my question
post here and
I can be contacted at gmvoeth @ hotmail (dot) com .
.
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