{"product_id":"thermal-conductivity-scanner-tcs-petrophysics-von-amalia-aventurin","title":"Thermal conductivity scanner (TCS)","description":"\u003cp\u003eInternship Report from the year 2013 in the subject Geography \/ Earth Science - Miscellaneous, grade: 2,0, RWTH Aachen University (Lehrstuhl für Geologie, Geochemie und Lagerstätten des Erdöls und der Kohle), course: Petrophysics Practical Course, language: English, abstract: The thermal conductivity scanner (or TCS) measures the thermal conductivity (W\/m¿K) via optical scanning method. In Figure 1 is a picture of the measurement shown. The thermal conductivity is a material property. High values are used for cooling systems to transport heat away from the material in a short time (e.g. fringes); low values are used as insulators, e.g. thermos flasks. With this method the heater and the detectors where moved along the sample from the right to the left. A sensor measures within the moving first the ¿cold¿ conductivity of the sample. Than the heater follows and a last sensor measures after the heating of 25°C the conductivity of the sample again. Before and after the sample are two reference sources laid with a defined thermal conductivity. These reference sources are need for the sensor calibration, too. To avoid errors there has always to be a gap of a few centimeters between the reference blocks and the measured sample. For the measuring the samples and the reference sources have to be colored with a thick black line to avoid overheating and reflection by lighter samples. The opening has to be covered completely by the painted part of the sample. To control this was a mirror underneath the apparatus. [...]\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783656644811\"\u003e\u003ch3\u003ePetrophysics\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783656644811","offer_id":39446970204253,"sku":"9783656644811","price":15.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/a95d8e0b-42fe-49b0-a105-0909fe7a1375.jpg?v=1778134544","url":"https:\/\/shop.autorenwelt.de\/en\/products\/thermal-conductivity-scanner-tcs-petrophysics-von-amalia-aventurin","provider":"Autorenwelt Shop","version":"1.0","type":"link"}