KRON TECHNOLOGIES 1.4 Chronos Camera Support Instructions

KRON TECHNOLOGIES 1.4 Chronos Camera Support

Product Information

The Chronos Camera Support is a high-speed imaging solution provided by Kron Technologies. This application document provides instructions on how to double the frame rate of two Chronos cameras.

Requirements:

• Two Chronos cameras (preferably of the same type and model)
• Two lenses of the same type
• A device that provides an external signal to the cameras with a minimum of two channels (e.g., function generator, BNC, or data acquisition card)
• A signal that triggers the external signal device
• Two BNC cables

Procedure:

1. Send a TTL signal into each channel of the function generator.
2. Connect a BNC cable from the function generator’s channel 1 to camera 1 and another BNC cable from the function generator’s channel 2 to camera 2.
3. Set the frequency of channels 1 and 2 to the desired frequency (e.g., 1,000 Hz).
4. Set the duty cycle of each channel to define the exposure time of each camera.
5. Set the cameras’ frame rate to a rate higher than the function generator’s output frequency.
6. In both cameras 1 and 2, go to the Trigger/IO Settings menu and select “Shutter gating” in the IO 1 BNC area.
7. Adjust the camera focus and scene to ensure each camera has approximately the same field of view. Also, ensure that the object of interest appears at the same position on each camera’s screen.
8. Set the illumination for each camera, preferably using cameras of the same type for similar scene intensity and resolution.
9. Press the record button of each camera when everything is ready. The cameras will start recording once the signal from each channel of the function generator is sent to the cameras.
10. Save the recorded images as TIFF format by selecting TIFF in the Settings menu.
11. Suppress the time stamp from the camera by deselecting Text Overlay in the Settings menu.
12. View the recorded videos from each camera.
13. Rename the recorded image files sequentially. Images from camera 1 should be saved as Frame001, Frame003, Frame005, etc., and images from camera 2 should be saved as Frame002, Frame004, Frame006, etc.
14. You can use the provided script at https://pynative.com/python-rename-file/ to automatically rename a large number of files in a folder.
15. Adjust the image intensity or the position of the object of interest in the videos to make them appear as if they are from the same recording.
16. Once the files are sequentially numbered and placed in the same folder, they can be opened and viewed as a single video.

For more information about Chronos High-Speed Cameras, visit www.krontech.ca or call +1 778-819-1182.

CHRONOS CAMERA SUPPORT

Procedure to Double the Frame-rate of Two Chronos Cameras
In this application document, you can find instructions to increase the frame rate of Chronos cameras by 2 fold.

You will need

1. Two Chronos cameras, it is better if they are the same type and model, i.e 1.4, monochrome
2. 2 lenses of the same type is preferred
3. A device that provides an external signal to the cameras, with a minimum of two channels, i.e., a function generator, BNC, or data acquisition card
4. A signal that triggers the external signal device
5. 2 BNC cables

Procedure

1. Send a TTL signal into each channel of the function generator.
2. Connect a BNC cable from the function generator’s channel 1 to camera 1 and one more from the function generator’s channel 2 to camera 2.
3. Set the frequency of channels 1 and 2 to the desired frequency. In this case we set it to 1,000 Hz.
4. Set the duty cycle of each channel, this defines the exposure time of each camera.
5. Set channel 2 delayed with respect to channel 1 by ½ the interframe time, in our test is 500 μs.
6. Set the cameras’ frame-rate to a frame rate higher than the function generator’s output frequency.
7. In both cameras 1 and 2 go to the “Trigger/IO Settings” menu. In the IO 1 BNC area select Shutter gating.
8. Adjust the camera focus and scene such that each camera has approximately the same field of view. Also, make sure the object of interest appears on each camera’s screen at approximately the same position.
9.  Set the illumination for each camera. It is more convenient if both cameras are the same type, for instance, 1.4 or 2.1, and either monochrome or color. In this way, it is easier to have similar intensity of the scene and resolution.
10. When everything is ready, press the record button on each camera. The cameras will start recording once the signal from each channel of the function generator is sent to the cameras.
11. Save the image as TIFF, go to Settings, and select TIFF.
12. Suppress the time stamp from the camera, it will be different after the images of the two cameras are put together. Go to Settings and deselect Text Overlay.
13. View the videos recorded from each camera
14. Each camera records the files with the same numbering, starting from 0 to n in increments of 1. Thus you need to rename the images recorded.
15. The images from camera 1 need to be saved as Frame001, Frame003, Frame005, etc., and those from camera 2 as Frame002, Frame004, Frame006, etc.
16. You can visit the following site: https://pynative.com/python-rename-file/. It provides scripts that show you how to rename files in a folder automatically. It is especially useful if you need to rename a large amount of them.
17. You may need to adjust the image intensity of the videos or the position where the object of interest is located in the image so they appear as if they are from the same recording.
18. Once the files are sequentially numbered and placed in the same folder they can be opened and seen as a single video.

Want to learn more about Chronos High-Speed Cameras?
Visit us at www.krontech.ca
Call us at +1 778-819-1182

References

• Kron Technologies | Affordable High-Speed Cameras

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