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About Calorimeters and Thermal Analyzers
Specific heat capacity is the measurement of heat a gram of a given substance needs to exchange with its surroundings under certain conditions in order to change its temperature by one degree. Calorimeters and thermal analyzers contain a heat source that can deliver a heat flux, at a distinct temperature, into a sample, and a temperature-measuring device that can read the resultant change in temperature. In order to obtain correct measurements, it is essential that the sample be prevented from exchanging any additional energy with its surroundings. When the heat source is in the off position, the temperature of the sample remains constant. When the heat source is activated for a given time interval, an exchange of energy in the form of heat takes place and the temperature of the sample rises. The calorimeter or thermal analyzer calculates the specific heat capacity from the heat flux, the time, and the resulting change in the temperature of the sample.
There are a number of available calorimeters and thermal analyzers available, which function using slightly different techniques. The most common types of calorimeters and thermal analyzers include dilatometers, differential thermal analyzers (DTA), dynamic mechanical analyzers (DMA), thermal conductivity analyzers (TCA), thermal gravimetric analyzers (TGA), and thermal mechanical analyzers (TMA).
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Differential Scanning Calorimeters (DSC)
Differential scanning calorimeters (DSC) measure heat flows and temperatures associated with exothermic and endothermic transitions. They incorporate the most commonly used thermal analysis technique...(read more)
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Dynamic Mechanical Analysis (DMA)
Dynamic mechanical analysis (DMA) is an analytical technique which measures the modulus (stiffness) and damping (energy dissipation) properties of materials as those materials are deformed under...(read more)
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Thermal Mechanical Analysis (TMA)
Thermal mechanical analysis (TMA) is a technique used for measuring the dimensional changes in materials as a function of temperature or as a function of time isothermally. Stress can be applied to...(read more)
Engineering Web: Calorimeters and Thermal Analyzers
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Thermal Analysis Standards Standard Practice for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers See ASTM International Information |
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ASTM E967 -08 Standard Practice for Temperature Calibration of... ASTM E967 - 08 Standard Practice for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers See ASTM International Information |
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Thermal Conductivity Instruments - NETZSCH Adiabatic Reaction Calorimeters Thermal hazard screening & more! See NETZSCH Instruments, Inc. Information |

