PSN-L Email List Message

Subject: Re: Amaseis
From: John or Jan Lahr JohnJan@........
Date: Tue, 31 Oct 2006 22:00:46 -0800

I believe AmaSeis does some averaging when used with a Dataq 154RS 
ADC, so the precision is greater than 12 bits.  2^15 is 32768, so 
that's half way to the maximum for a 16-bit number.


At 04:08 PM 10/31/2006, you wrote:
>In a message dated 2006/10/31, rpratt@............. writes:
>>finally have my instrument up and running again to an extent.  I 
>>have converted to the Dataq 154RS and Amaseis.  I have some 
>>questions on Amaseis and my results.  First is I expected and set a 
>>zero level of 2048 from the 12 bits.  On my display the data value 
>>shows as 30800 approximately.
>Hi Randy,
>        Sounds like it is reading a 16 bit value? Is AmaSeis 
> selected for the DI-154? Try inputting a zero of  32768?
>        Regards,
>        Chris Chapman


Public Seismic Network Mailing List (PSN-L)

[ Top ] [ Back ] [ Home Page ]