Versatile high speed rotating mirror cameras

Skinner, A.

doi:10.1088/0950-7671/39/7/303

Cited by 13 publications

(1 citation statement)

References 3 publications

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“…Here two fast photodiodes mounted in the sensor plane measure the time evolution of the image brightness. It is seen that the triangular profiles [20] overlap between frames, however when the 10-90% integrated illumination intensity is evaluated [15], it was found that the exposure time (t 90 − t 10 ) perfectly fits the Fig. 6 The Miller principle, which is the key optical feature of rotating mirror cameras, can be understood from scanning the conjugated Fourier transformed image across the apertures at the lens bank position.…”

Section: Optical Configuration and Miller Principlementioning

confidence: 93%

Brandaris Ultra High-Speed Imaging Facility

Lajoinie

Jong²,

Versluis

2017

The Micro-World Observed by Ultra High-Speed Cameras

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High-speed imaging is in popular demand for a broad range of scientific applications, including fluid physics, and bubble and droplet dynamics. It allows for a detailed visualization of the event under study by acquiring a series of images captured at high temporal and spatial resolution. The challenge here is the combination of microscopic length scales and ultrashort time scales associated with the mechanisms governing fluid flows. In this chapter, ultra high-speed imaging at frame rates exceeding 10 million frames per second (fps) is briefly reviewed, including the emerging ultrafast sensor technologies and ultrashort nanoseconds flash illumination techniques. We discuss in detail the design and applications of the Brandaris 128 ultra high-speed imaging facility. The high-speed camera combines the optical frame of a rotating mirror camera with 128 CCD sensors and can record at a maximum frame rate of 25 Mfps. Six acquisitions can be stored in the on-board memory buffer, while in a segmented mode images are acquired in subsets, e.g. 24 Â 32 frames, allowing parametric studies to be performed. We also discuss how the Brandaris camera is operated to capture details of bubble dynamics, droplet vaporization, and inkjet printing.

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Section: Optical Configuration and Miller Principlementioning

confidence: 93%