caa a22 4500 606197966 CHVBK 20210128100931.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00348-015-1919-5 doi (NATIONALLICENCE)springer-10.1007/s00348-015-1919-5 Improvement in spatial resolution of background-oriented schlieren technique by introducing a telecentric optical system and its application to supersonic flow [Elektronische Daten] [Masanori Ota, Friedrich Leopold, Ryusuke Noda, Kazuo Maeno] A telecentric optical system is applied to the background-oriented schlieren (BOS) technique to improve accuracy, overcoming the drawbacks of conventional diverging light observation. This paper describes the optical arrangement and formula for telecentric BOS measurement and presents measurement results obtained by the colored-grid background-oriented schlieren technique to confirm the theoretical prediction. The application of the new approach for a large-scale supersonic wind tunnel test is reported. Springer-Verlag Berlin Heidelberg, 2015 Ota Masanori Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, 263-8522, Chiba, Japan aut Leopold Friedrich The French-German Research Institute of Saint-Louis (ISL), 5 rue General Cassagnou, 68301, Saint Louis, France aut Noda Ryusuke Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, 263-8522, Chiba, Japan aut Maeno Kazuo Kisarazu National College of Technology, 2-11-1 Kiyomidai-Higashi, Kisarazu, 292-0041, Chiba, Japan aut Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-10 0723-4864 56:3<1 2015 56 348 https://doi.org/10.1007/s00348-015-1919-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-1919-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ota Masanori Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, 263-8522, Chiba, Japan aut NATIONALLICENCE 700 1- Leopold Friedrich The French-German Research Institute of Saint-Louis (ISL), 5 rue General Cassagnou, 68301, Saint Louis, France aut NATIONALLICENCE 700 1- Noda Ryusuke Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, 263-8522, Chiba, Japan aut NATIONALLICENCE 700 1- Maeno Kazuo Kisarazu National College of Technology, 2-11-1 Kiyomidai-Higashi, Kisarazu, 292-0041, Chiba, Japan aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/3(2015-03-01), 1-10 0723-4864 56:3<1 2015 56 348