Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Role of mirror dynamics in determining the accuracy of framing rate in an ultra high speed rotating mirror camera

[+] Author Affiliations
Michael Conneely, Hans O. Rolfsnes, David McGloin, Charles Main, Paul A. Campbell

Univ. of Dundee (United Kingdom)

Proc. SPIE 8125, Optomechanics 2011: Innovations and Solutions, 812512 (September 23, 2011); doi:10.1117/12.903618
Text Size: A A A
From Conference Volume 8125

  • Optomechanics 2011: Innovations and Solutions
  • Alson E. Hatheway
  • San Diego, California, USA | August 21, 2011

abstract

We investigated the occurrence of small but significant inaccuracies in the temporal integrity of a commercial high-speed [rotating mirror] imaging system (a Cordin 550-62 camera). Utilizing a relatively straightforward hardware addition, independent measurements of the actual frame rate at the point of camera triggering were conducted, and then compared to the Cordin system's self-reported frame rate values for each recording. The present data thus represents a follow-up to our earlier preliminary report on this instrument's performance, where we initially discovered that disparities between the true and reported values could arise. Interestingly, the data trends observed in the present report suggest a disparity, the nature of which is consistent with the Cordin camera reporting a frame rate that arises a short time before the trigger event, i.e. that the system's sampling algorithm senses the frame rate with a finite pre-trigger implemented, which runs counter to the procedure suggested by the manufacturer. As well as presenting the context, and supporting evidence for our own conclusions, we also developed an approach to reduce the error in the reported values by a factor of 7, from an average of 0.78% +/- 0.04% to 0.11% +/- 0.08% over the present data set.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Michael Conneely ; Hans O. Rolfsnes ; David McGloin ; Charles Main and Paul A. Campbell
"Role of mirror dynamics in determining the accuracy of framing rate in an ultra high speed rotating mirror camera", Proc. SPIE 8125, Optomechanics 2011: Innovations and Solutions, 812512 (September 23, 2011); doi:10.1117/12.903618; http://dx.doi.org/10.1117/12.903618


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.