The article presents the problem of methane detection using multispectral IR camera. The project of such camera and some theoretical calculations regarding the possibility of methane detection are presented. The calculation of optical path: "camera-cloud of methane-background" were also shown. Verification of theoretical result will be made by laboratory measurement. Some result of methane detection will be reported in article.
This paper presents the test campaign concept and definition and the analysis of the recorded measurements. The braking temperature on a lining surface can rise above 500°C. Experimental tests were conducted on the test machine called IL-68, modified to enable thermographic measurements. The paper presents the results of analysis of thermal images registered at different conditions during the tests as well as results of dynamic tests and calculated thermal parameters characterizing the brake. Furthermore, based on this testing machine, and tests results the numerical model was developed. Computations were performed using a dynamic LS-Dyna code where heat generation was estimated assuming full (100%) conversion of mechanical work done by friction forces.
Laser welding of biological tissues require temperature control over the entire process, because the allowed temperature margin is 2 °C around the tissue-specific coagulation temperature. The paper presents the results of the research concerning laser tissue welding, using continuous wave laser diode. The infrared radiation associated with laser welding process was detected by two thermal imaging cameras. First one, operating in SWIR range, measured the scattered radiation of a laser diode. The second camera, operating in MWIR spectral band was used to measure the temperature of a tissue. The rates of tissue temperature changes, surface and in-depth temperature distributions were measured for different kinds of tissues and power outputs 20-75W of applied semiconductor laser.
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