[time-nuts] Slightly off-topic: How to take measurements at fixed intervals in Perl

Didier Juges didier at cox.net
Sun Feb 24 01:24:34 UTC 2008


Simple and sweet, thanks John!

Didier KO4BB 

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of John Ackermann N8UR
> Sent: Saturday, February 23, 2008 5:53 PM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] Slightly off-topic: How to take 
> measurements at fixed intervals in Perl
> 
> I've struggled for a while to figure out how to take readings 
> at fixed intervals from my counters and other GPIB gear.  The 
> problem is that the time it requires to trigger and receive a 
> measurement is non-zero and can vary from measurement to 
> measurement.  Trying to calibrate a proper delay is an 
> exercise in frustration, and any errors mount over long experiments.
> 
> I searched the web and found bits indicating that a fixed 
> timer could be done using an "alarm" signal, but no single 
> place provided a useful (to me, anyway) example, and all the 
> info I found seemed aimed at different applications.
> 
> I finally figured it out, and the details are at 
> http://www.febo.com/pages/perl-alarm-code/index.html if this 
> might be of interest to any of you.
> 
> John
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com To unsubscribe, 
> go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition. 
> Version: 7.5.516 / Virus Database: 269.20.9/1294 - Release 
> Date: 2/22/2008 6:39 PM
>  
> 

No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.516 / Virus Database: 269.20.9/1294 - Release Date: 2/22/2008
6:39 PM
 





More information about the Time-nuts_lists.febo.com mailing list