 Fri Jul 7 10:31:47 2017, Stefan Ritt, Trigger setting (AND AND) OR (AND AND)
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Unfortunately not with the current firmware.
Stefan
Esperienza |
 Thu Mar 31 19:30:26 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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I would like to be able to trigger in this fashon: channel 0 > 0.1 and. channel 1< -0.1, because I have a positive and a negative signal.
Can DRS4 (5) Eval board do this kind of trigger?
Thanks! |
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Thu Mar 31 19:35:06 2016, Stefan Ritt, Trigger on the And of a positive and negative signal
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No. You have to use an inverter for one of your signals.
Stefan
Abaz |
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Thu Mar 31 19:44:38 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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Ok, thanks! do you know an easy in-line inverter like mini-circuit or digikey? Can also redesign the detector I gues to produce
positive signals, just it might be easier if there was a simple inverter if you are aware of? thanks Abaz
Stefan |
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Thu Mar 31 20:34:25 2016, Stefan Ritt, Trigger on the And of a positive and negative signal
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Here is one (SI 100): https://www.picoquant.com/products/category/accessories/adapters-splitters-cables-various-accessories-for-photon-counting-setups
Abaz
Kryemadhi wrote:
Ok, thanks! do you know an easy in-line inverter like mini-circuit |
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Thu Mar 31 20:38:05 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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Thanks, that looks just fine.
Stefan
Ritt wrote:
Here is one (SI 100): https://www.picoquant.com/products/category/accessories/adapters-splitters-cables-various-accessories-for-photon-counting-setups |
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Thu Mar 31 20:48:00 2016, Chris Thompson, Trigger on the And of a positive and negative signal
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I needed a fast pulse inverter in order to feed signals from the recent SensL SiPMs into a conventional CFD which only accepted negative signals. I got
a very small ferite torridal transformer from Coilcraft and wired up to invert signals then inserted into in 50 ohm coax cable and it works fine. These
things cost only a few cents each! |
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Fri Apr 1 01:30:40 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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Hi Chris,
I am looking at Sensl SiPMs as well, can you send the part number from Coilcraft?
Thanks! |
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Fri Apr 1 22:09:07 2016, Chris Thompson, Trigger on the And of a positive and negative signal
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The coilcraft part number is: JA4220-ALB. Iordered two of them and they were sent as free samples. You might want to buy some slightly bigger
ones. I found them so small it was very hard to solder the coax cable to the connectors. Since I got them, I managed to damage one as they are quite fragile!
In the confirmation email I got there was some contact info which may be useful for you: "For help, contact Victoria Berner |
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Sat Apr 2 17:22:34 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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Thanks again, this is very useful, just another question did you put any other passive elements in the circuit for inverting the signal
or just simply swaped the transformer connections?
Chris |
Sun Apr 3 22:10:19 2016, Chris Thompson, Trigger on the And of a positive and negative signal 
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No there are no other components. I put a photo of the inverter with its cables SMA and one end, BNC at the other. You can see it is very small. I glued
the inverter to a piece of thin plywood, and fixed the cables to it before attempting to solder them to the pads on the ferite bead support
Abaz |
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Sun Apr 3 22:34:28 2016, Abaz Kryemadhi, Trigger on the And of a positive and negative signal
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Thanks, great!
Chris
Thompson wrote:
No there are no other components. I put a photo of the inverter |
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Mon Dec 14 10:14:16 2009, Jinhong Wang, Trigger of DRS4
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Dear Mr. S. Ritt
The following is my confusion about the trigger of DRS4. It mainly concertrates on the generation
of trigger signal to stop DRS4 sampling process for readout of sampled waveform. |
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Tue Dec 15 14:38:09 2009, Stefan Ritt, Trigger of DRS4
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Jinhong Wang wrote:
Dear Mr. S. Ritt |
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Mon Dec 21 10:17:05 2009, Jinhong Wang, Trigger of DRS4
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Stefan Ritt wrote:
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Mon Dec 21 16:52:08 2009, Stefan Ritt, Trigger of DRS4
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Jinhong Wang wrote:
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Tue Dec 22 01:30:55 2009, Jinhong Wang, Trigger of DRS4
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Stefan Ritt wrote:
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Tue Dec 22 09:07:27 2009, Stefan Ritt, Trigger of DRS4
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Jinhong Wang wrote:
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Mon Oct 25 18:48:04 2021, Javier Caravaca, Trigger multiple boards independently
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Hello,
I recently acquired 4 DRS4 boards and I wanted to ask if it was possible to trigger them independently from the same computer.
I know that you can daisy-chain boards and trigger them all at the same time, but in my case, each of my boards record independent events, so |
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Tue Oct 26 12:02:56 2021, Stefan Ritt, Trigger multiple boards independently
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Unfortunately an independent operation from a single computer is not supported by the software. You can try to modify the drs_exam program and extend
it. You can poll all boards in sequence and just read out that one which got a trigger, then start the loop again. But I don't know how good you are
in programming. I needs a bit of experience to do that. |