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Woods Hole Coastal and Marine Science Center

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Overview of Measurement Technique



Our thermal property measurement procedure generally follows that of the ASTM standard D 5334-00 [2004] for needle probe thermal conductivity measurements, a technique originally developed by von Herzen and Maxwell [1959]. A constant current is supplied to a heater wire in the needle probe. The heater wire's output causes a temperature change in the sample. This change is measured as a function of time by the thermistor bead within the needle probe. Based from the time-dependent temperature change, the thermal properties of the sample can be calculated.

The following pages describe the calculations for:

 

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This page last modified on Monday, 05-Dec-2016 16:31:05 EST