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http://cio.repositorioinstitucional.mx/jspui/handle/1002/1002| High-resolution bispectral imager at 1000 frames per second | |
| MARIJA STROJNIK SCHOLL GONZALO PAEZ PADILLA | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| We describe a bispectral, 1000-frames per second imaging instrument working simultaneously in two spectral bands. These bands may be selected for a specific application; however, we implement a pair centered at 4.3 μm and 4.66 μm. Synchronization is accomplished by employing a single focal plane array. To demonstrate the performance of the bispectral imager, we apply it to the methane flame of a Bunsen burner in a near conjugate configuration with flame image length subtending at about 200 pixels. The instrument detects bispectral puffing at 2 Hz, pulsations, and bispectral radiation oscillations, first reported here in two spectral intervals. The period of oscillatory spectral components in two bands is the same, about 3 Hz for this flame, with delay of a quarter period between them, first reported here. With 1-ms integration time, we detect significant formation of turbulence and vortices, especially pronounced in the region where the flame transitions into a plume. We display bispectral ratioed images of flames in near-real time with either the laboratory or the field device. | |
| 01-09-2015 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2015 |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| High-resolution bispectral imager at 1000.pdf | 1.56 MB | Adobe PDF | Visualizar/Abrir |