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Entry  Wed Sep 27 16:11:03 2017, Yoni Sher, Event acquisition pace for irregular timing 
    Reply  Mon Oct 2 16:08:05 2017, Stefan Ritt, Event acquisition pace for irregular timing 
Message ID: 630     Entry time: Mon Oct 2 16:08:05 2017     In reply to: 629
Author: Stefan Ritt 
Subject: Event acquisition pace for irregular timing 

As written in the documentation, the DRS evaluaiton board has a maximum trigger capability of ~500 Hz. This is limited by the USB bus which has a finite data transfer rate. If you build your own electronics around the chip (like many other groups are doing), you can squeeze this to a few kHz, but it is some development effort.

Stefan

Yoni Sher wrote:

Hi, 

I'm running a LIDAR application that requires that every outgoing pulse be captured. My current setup firess sets of 20-50 pulses at 1 ms intervals, about 10 times a second, but only 10-20 pulses a second are captured. 

When I fire at full speed (1KHz - one pulse every ms), about 500-600 pulses a second are captured. 

At the moment, I'm triggering on channel 1 and captureing the data on channel 2. Would it help if I used the external trigger? Is there anything else I can do?

 

Yoni

 

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