Messages

1

General high-speed discussion / Control Chronos 1.4 via Laptop

« on: July 10, 2019, 04:16:34 AM »

Hi,

Is there currently a way to control the Chronos 1.4 via a laptop remotely (e.g laptop is connected to the camera and then triggering/recording/saving video can be controlled via laptop).

In my experiment manually having to save video really slows the process.

Thanks

2

General high-speed discussion / Re: Question regarding resolution and frame rate

« on: June 25, 2019, 12:48:33 PM »

Nice idea! Thanks

3

General high-speed discussion / Re: Question regarding resolution and frame rate

« on: June 25, 2019, 09:02:14 AM »

Thank you both for the help

4

General high-speed discussion / Question regarding resolution and frame rate

« on: June 25, 2019, 04:56:12 AM »

Hi,
The default minimum resolution is 336x96 which gives 38565 fps.
I have noticed that I can take it down to 192x96 and maintain the same fps.
Now when I change resolutions, always keeping the product of the width (x) and height (y) less than 32256 (which is 336x96) I keep getting frame rates below 38565. Such as 256x124 gives 30230 fps.

Is it possible to maintain the maximum fps of 38565 and follow the above rule of any resolution combo of xy less than 32256?

My aim is to record at the maximum frame rate but either is a square resolution or in a verticale slit. To clarify the resolution 336x96 would be a horizontal slit.

Thanks for any help.

5

General high-speed discussion / Re: Problems with Triggering in Exposure Trigger and Gated Trigger

« on: June 25, 2019, 12:46:20 AM »

The software update helped although I still have problems with the gated mode. It keeps recording 1 frame. I am using 1280x1024 at max frames (1057). I have set recording mode to gated burst and the trigger to gated. I am proving a 1khz square wave with 50% duty.

I am a novice at this and I know I maybe annoying many. Any help is really appreciated.

I have attached a picture of my function generator settings.

If you disable gated burst, does the camera properly record a frame for each cycle it receives?

Do you want to set up the camera so that to record frames only when both trigger 1 (for example, a pushbutton trigger) is pressed and trigger 2 is receiving a signal? We haven't tested the use of gated burst and shutter gating at the same time, but in theory, it should work with a setup such as this:  Record mode = gated burst, Trigger 1 = Record End Trigger Trigger 2 = Shutter Gating

Thanks for the advise. I was working with trigger 1 gated with recording mode set to Gated Burst. I assumed what would happen is that the exposures would happen at the high input of the trigger (and it would continue recording until I stopped via the red shutter button).

I changed to Normal Record Mode and the camera records just fine.

My aim was to use the gated input to control exposure time and frame rate and record a video. If this can be done in Normal Record Mode please let me know. I may have misunderstood from the manual what the Gated Burst Record Mode does.

6

General high-speed discussion / Re: Problems with Triggering in Exposure Trigger and Gated Trigger

« on: June 25, 2019, 12:39:33 AM »

You will find attached the requested screen shots

7

General high-speed discussion / Re: Problems with Triggering in Exposure Trigger and Gated Trigger

« on: June 24, 2019, 08:17:07 AM »

The software update helped although I still have problems with the gated mode. It keeps recording 1 frame. I am using 1280x1024 at max frames (1057). I have set recording mode to gated burst and the trigger to gated. I am proving a 1khz square wave with 50% duty.

I am a novice at this and I know I maybe annoying many. Any help is really appreciated.

I have attached a picture of my function generator settings.

8

General high-speed discussion / Problems with Triggering in Exposure Trigger and Gated Trigger

« on: June 21, 2019, 07:22:52 AM »

Hi,
I have two Chronos 1.4 Monochrome 32GB Cameras with the software version 0.3.0 and build version 30e36f.

I was testing out triggers yesterday to figure out what trigger delay options work.
I tested at 1280x1024 1057fps.

Results:

The End Trigger works fine (I used a trigger that sends a pulse).

When I started testing the Exposure Trigger (Start Trigger) it would not work.
I tested the following: Recording Modes Normal and Segmented
Trigger Delay:

• Post Trigger 100%
• Pre Trigger 100%

For Post-Trigger 100% I expected a normal recording after I pressed the trigger.
For Pre-Trigger 100% I expected no recording (as its a Start Trigger)
In both cases, I got a 1-second recording.

My attempt at troubleshooting was to play with the pull-up options and the invert option none of which helped. I switched to a function generator for a pulse input (3.0V and the camera was set to a 2.5V threshold (not inverted)). This did not help either.

Then I tested Gated Trigger.
I tested the following: Recording Modes Gated.
I set the pre-record to 1 second.
I used the above-mentioned oscilloscope to send in a pulse of amplitude 3.0V (above the 2.5V threshold).
The pulse width was 2 seconds and repeated every 3 seconds (so a total of 5 seconds of which 2 seconds on 3.0V and 3 seconds on 0V).
Here again, I got a 1 frame recording. Furthermore, the image was near-white (oversaturated) whereas the recordings in Normal mode were not saturated.

I have been looking through this forum to see if I can find a solution to this problem however I have not found one yet. Can anyone please advise?
Both of the cameras have this exact same problem (tested under identical conditions). As a result, I suspect a software issue or some lack of understanding on my part.

Edit: If I have posted in the wrong forum section please let me know I'll move the post