Temperature Measurement, Methods

Non-contact temperature measurement inside microfluidic channels was achieved by using fluorescence quenching of a rhodamine dye. The intensity of the dye fluorescence is temperature-sensitive in a range temperature of 5-95°C [795], Another on-chip temperature measurement method was achieved by measuring... 

The overall combustor/optical layout is shown in Fig. 3, which illustrates temperature measurement by the Stokes/anti-Stokes method. Typical results for temperature pdf s at four radial positions (2, 7) near the centerline to near the flame boundary - and at an axial distance 50 fuel-tip diameters downstream of the fuel line tip are shown in Fig. 4. The shaded parts of the pdf contours (from 300 to 800°K), which increase in area near the flame boundary, correspond substantially to scattering from ambient temperature air, and therefore provide a measure of flow intermittency. The upper limit of these bins was chosen to be 800°K because the accuracy possible for the Stokes/anti-Stokes temperature measurement method degrades rapidly at temperatures below roughly that value (2,2) Thus, treating the fluctuation temperature data for T < 800 K in any greater detail was unwarranted. 

The surface temperature measurement method gives some qualitative answer on the heat release characteristic. The inaccuracy will become larger, with an increasing convective part of the heat released. In our opinion this method seems thus not to be suitable for use in a type test standard, also because of the fact that the accuracy is difficult to estimate if the method is applied to various appliances. 

VI. Recent Applications of Modern Temperature Measurement Methods in... 

VI. RECENT APPLICATIONS OF MODERN TEMPERATURE MEASUREMENT METHODS IN BIOCHEMISTRY... 

Temperature is undeniably the most important property for all calorimetric measurements, because it is the common denominator. Two different techniques for temperature measurements are used for pulse calorimetry contact thermometry (e.g. thermocouples) and radiation thermometry or pyrometry. Because pulse calorimetry is often used to handle and measure liquid materials, non-contact radiation thermometry is far more common in pulse-heating than contact thermometry. Other reasons for non-contact temperature measurement methods include the fast heating rates and temperature gradients (inertia of the thermocouples), difficulties mounting the contact thermometers (good thermal contact needed), and stray pick-up in the thermocouple signal because the sample is electrically self-heated. 

Temperature Measurement, Methods, Fig.1 A schematic illustrating the interaction of TLCs with incident light (Adapted from [2])... 

Temperature Measurement, Methods, Fig. 2 Representative schematic of the optical configuration for microscale fluorescence thermometry. The dashed box outlines the additional optics required for a two-dye fluorescence imaging... 

Temperature Measurement, Methods, Fig. 3 (a) of the average Nusselt number as a function of the Reyn-... 

Differential pressure level transmitter http //www.youtube.com/watch v=Eym D3tGwlE The Vortex Flow Measuring Principle http //www.youtube.com/watch v=GmTmDM7jHzA The Differential Pressure Flow Measuring Principle http //www.youtube.com/watch v=oUd4WxjoHKY Temperature Measurement Methods. Pyrometers http //www.youtube.com/watch7vKJgHTeqF-jik... 

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