Standard Speed Video Compared To High Speed Video
In today’s fast paced testing & manufacturing environment with increasingly faster and faster design cycles, diagnostics becomes increasingly difficult to do resulting in material waste and higher labour costs. The unaided human eye does not stand much of a chance visualizing what part of the process is causing all the problems. The use of a high speed camera during set up, maintenance or research design will reduce downtime and greatly improve efficiency, product quality and profitability in any process that involves drop tests, design verification, prototype testing, vibration analysis or quality control.
Why use high speed video?
Standard 30 fps (frames per second) video can only provide a few images of a rapidly occurring event. The images are too few and always blurry due to the fact that the camera’s shutter speed can not be precisely controlled to eliminate high speed blur. We can all relate to how fast an air bag inflates. Most of the event is missed with a normal camera or the unaided human eye.
Air Bag Sequence Recorded With High Speed Video
The above high speed video will provide you with 50 to 100 times more images of the same event so that you can clearly see what the problem is during your research and development.
High Speed cameras can generally be manufactured in one of the following two ways:
- Capture high frame rates, usually between 250 – 5000 fps for shorter durations of time from 10 to 120 seconds. These types of cameras have internal SDRAM and the user downloads the video after the event is recorded.
- Capture lower frame rates, usually between 120 and 1000 fps for longer durations lasting several hours. These types of cameras have no Internal SDRAM. They stream the live video to the DVR PC’s hard drive.
With most high speed cameras, there will always be a trade off between frames per second, resolution and record time.