Specialised Imaging has revealed the Shadowgraph (SIS) camera, allowing high-resolution digital imaging of ultra-fast events in ambient and low-light environments.
Shadowgraphy is used in aeronautical engineering to observe airflow around high-speed aircraft and missiles, as well as in combustion research, ballistics, explosions, and glass testing.
High-performance image sensors have allowed the development of a camera system that will capture up to 11 million-pixel images with the ability to shutter in less than 1us.
Integrating this camera with an ultra-fast high-intensity spark source has resulted in a digital Shadowgraph camera that is capable of image quality only previously achievable with film cameras, but also offering the advantage of instantaneous access to data.
Intuitive yet powerful control software provides simple adjustment of imaging parameters and extensive measurement tools to accurately analyse results.
Camera stations can be arranged in the classic configuration, looking directly at a reflective screen, or as orthogonal pairs to provide 3D data such as the pitch and yaw of supersonic airflows.
Comprehensive triggering functionality has been implemented in the SIS camera system, enabling it to be interfaced with almost any triggering device.
An in-built velocity trap, using optional external triggers, ensures the camera will never suffer from experimental uncertainty in measuring the velocity of an object.
