[time-nuts] EZGPIB & delay triggers

[Bill Janssen]

Ulrich Bangert wrote:
> Bill,
>
> there are two "sleep" commands:
>
> 1) Procedure EZGPIB_TimeSleep(HowLong:Double)
>
> 2) Procedure EZGPIB_TimeWaitForMultipleOf(Seconds:LongWord)
>
> where Howlong is in seconds and starts immediately after call. The second
> one is for you if you want to keep something synchronized to the computer's
> clock. EZGPIB_TimeWaitForMultipleOf(10) will sleep up to second 10, 20, 30,
> 50, 0 whatever is the closest. EZGPIB_TimeWaitForMultipleOf(60) will wait up
> to the start of the next minute.
>
>   
>> I am trying to use EZGPIB with a HP 5370A and I want to trigger a 
>> reading on a 10 to 30 second interval.
>> I want the use EZGPIB to do long term comparisons of various 
>> oscillators, I am not interested (at this time)
>> on jitter less than tau < 1 seconds or so
>>     
>
> I fear, that THIS not only a matter of sleeping! Please explain your
> experiment more in detail. Are you doing frequency or phase measurements?
>
> 73s de Ulrich, DF6JB
>
>   
I am using the 5370 for time interval measurements to compare zero 
crossings from the two oscillators.
I want to see what the stability is over twenty four hours. I have two 
GPSDO's and a rubidium and three
"good" quartz oscillators. I suspect that the Z3801 is drifting due to 
temperature changes

I want to sample the phase difference at a known rate so that I can plot 
the differences with out getting
a data file thats too big..


>
>   
>> -----Ursprungliche Nachricht-----
>> Von: time-nuts-bounces at febo.com 
>> [mailto:time-nuts-bounces at febo.com] Im Auftrag von Bill
>> Gesendet: Montag, 13. Juli 2009 04:31
>> An: time-nuts
>> Betreff: [time-nuts] EZGPIB & delay triggers
>>
>>
>> I am trying to use EZGPIB with a HP 5370A and I want to trigger a 
>> reading on a 10 to 30 second interval.
>> I want the use EZGPIB to do long term comparisons of various 
>> oscillators, I am not interested (at this time)
>> on jitter less than tau < 1 seconds or so
>>
>> My question is what is the PASCAL code to delay between 
>> readings. I am 
>> running Windows XP if
>> that makes a difference.
>>
>> I don't have a book (yet) on PASCAL and I am not a programmer. I have 
>> EZGPIB displaying readings but at
>> what seems to be a random rate
>>
>> Thanks
>> Bill K7NOM
>>
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>
>
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