Author: Lee Kean
Publisher:
ISBN:
Category : Schlieren methods (Optics)
Languages : en
Pages : 46
Book Description
A Contribution to the Theory of Schlieren Sensitivity and Quantitative Evaluation
Author: Lee Kean
Publisher:
ISBN:
Category : Schlieren methods (Optics)
Languages : en
Pages : 46
Book Description
Publisher:
ISBN:
Category : Schlieren methods (Optics)
Languages : en
Pages : 46
Book Description
A CONTRIBUTION TO THE THEORY OF SCHLIEREN SENSITIVITY AND QUANTIATIVE EVALUATION.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
Detectors used to evaluate schlieren images have a response proportional either to the illumination or to the logarithm of the illumination. Sensitivity point functions appropriate to both kinds of response are defined analytically. These functions are well defined even in the presence of optical system imperfections and are not referenced to the clear field illumination. By the choice of an appropriate system configuration, either function can be reduced to a constant. It is shown that, in principle, the light deviation values required for quantitative evaluation can be found by subtracting out the illumination increments due to diffraction and other system errors. A qualitative treatment of schlieren diffraction from the point of view of the Thomas Young theory is given. A technique is described for obtaining a stigmatic source image with an offset two-mirror schlieren system. A simple method for obtaining simultaneous vertical and horizontal knife-edge schlieren pictures is given. A means for magnifying sensitivity without the use of long focal length mirrors is described. A new method for measuring gas temperatures, which involves crossing a color schlieren system with a spectrograph, is described.
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
Detectors used to evaluate schlieren images have a response proportional either to the illumination or to the logarithm of the illumination. Sensitivity point functions appropriate to both kinds of response are defined analytically. These functions are well defined even in the presence of optical system imperfections and are not referenced to the clear field illumination. By the choice of an appropriate system configuration, either function can be reduced to a constant. It is shown that, in principle, the light deviation values required for quantitative evaluation can be found by subtracting out the illumination increments due to diffraction and other system errors. A qualitative treatment of schlieren diffraction from the point of view of the Thomas Young theory is given. A technique is described for obtaining a stigmatic source image with an offset two-mirror schlieren system. A simple method for obtaining simultaneous vertical and horizontal knife-edge schlieren pictures is given. A means for magnifying sensitivity without the use of long focal length mirrors is described. A new method for measuring gas temperatures, which involves crossing a color schlieren system with a spectrograph, is described.
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 480
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 480
Book Description
Keywords Index to U.S. Government Technical Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1160
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1160
Book Description
U.S. Government Research Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 814
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 814
Book Description
Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1148
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1148
Book Description
U.S. Government Research and Development Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages :
Book Description
Schlieren and Shadowgraph Techniques
Author: G.S. Settles
Publisher: Springer Science & Business Media
ISBN: 3642566405
Category : Technology & Engineering
Languages : en
Pages : 388
Book Description
Schlieren and shadowgraph techniques are basic and valuable tools in various scientific and engineering disciplines. They allow us to see the invisible: the optical inhomogeneities in transparent media like air, water, and glass that otherwise cause only ghostly distortions of our normal vision. These techniques are discussed briefly in many books and papers, but there is no up-to-date complete treatment of the subject before now. The book is intended as a practical guide for those who want to use these methods, as well as a resource for a broad range of disciplines where scientific visualization is important. The colorful 400-year history of these methods is covered in an extensive introductory chapter accessible to all readers.
Publisher: Springer Science & Business Media
ISBN: 3642566405
Category : Technology & Engineering
Languages : en
Pages : 388
Book Description
Schlieren and shadowgraph techniques are basic and valuable tools in various scientific and engineering disciplines. They allow us to see the invisible: the optical inhomogeneities in transparent media like air, water, and glass that otherwise cause only ghostly distortions of our normal vision. These techniques are discussed briefly in many books and papers, but there is no up-to-date complete treatment of the subject before now. The book is intended as a practical guide for those who want to use these methods, as well as a resource for a broad range of disciplines where scientific visualization is important. The colorful 400-year history of these methods is covered in an extensive introductory chapter accessible to all readers.
Keywords Index to U.S. Government Technical Reports (permuted Title Index).
Author: United States. Department of Commerce. Office of Technical Services
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 836
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 836
Book Description
Bibliography of Scientific and Industrial Reports
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1012
Book Description
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1012
Book Description