Access the full text.
Sign up today, get DeepDyve free for 14 days.
G. Settles (2001)
Schlieren and shadowgraph techniques
J. Stricker, F. Rosenblatt (2003)
Heterodyne schlieren system.Optics letters, 28 16
J. Goodman (1985)
Statistical Optics
R. Dändliker (1980)
Heterodyne Holographic Interferometry
G. Gatewood, L. Breakiron, Ronald Goebel, S. Kipp, J. Russell, J. Stein (1976)
On the astrometric detection of neighboring planetary systems, IIIcarus, 41
S. Garg, L. III (2001)
Quantitative schlieren measurements of coherent structures in a cavity shear layerExperiments in Fluids, 30
J. Stricker (1985)
Electronic heterodyne readout of fringes in moiré deflectometry.Optics letters, 10 6
The performance of the electronic heterodyne schlieren system is investigated. The sensitivity, spatial resolution, and dynamic range of the system are calculated. It is shown that these features are improved compared with the conventional intensity schlieren readout technique. Without changing the system setup, the sensitivity and accuracy of the system can be tripled by using the third harmonic of the heterodyne signal. In this case, the spatial resolution and the measurement range are reduced by a factor of three. The system is self-calibrated. For whole field measurements, the method is limited by the camera to milliseconds time scale. However, for selected points measurements fast variations, the order of tens of microseconds, can be measured. The system was evaluated experimentally by measuring the focal length of a weak lens and a multiscale phase plate.
Experiments in Fluids – Springer Journals
Published: Jun 22, 2005
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.