High Speed Industrial Cameras
(also called trouble shooting cameras)
High Speed cameras in industrial applications are used mainly to trouble shoot high speed events and machinery where speeds are such the human eye can't see what's happening. The fastest high speed cameras tend to have the image memory inside the unit enabling them to record up to 10,000 frames per second. A camera for video trouble shooting applications not only needs speed but needs specialist triggering modes. It's important in some applications to know the cause of the triggered event so pre event recording is common in high speed cameras which captures continuously and when the event happens data from both before and after is stored. Another key feature in trouble shooting cameras is the ability to self-trigger through the lens. This feature monitors a small region of the image for a change and when this happens makes a trigger point. The resultant image sequence includes images before and after the trigger region changed. Modern high speed trouble shooting cameras are normally controlled via a laptop which makes them portable and provides the ability to store and play back videos using standard technology.
One challenge with very high speed cameras is light. With very short exposures a lot of light is needed to get good quality images. Many of the providers also have a good solution of lighting to address many applications.
High speed cameras without memory also exist but these are generally integrated in PC systems where the image data is recorded in to PC memory rather than the camera memory. The limit here is the interface speed which tends to typically be 10x slower than cameras with inbuilt memory. These systems tend to be used less in trouble shooting applications rather high speed inspection applications.