Development of capacitance strain transducers for high-temperature and biaxial applications
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Both uniaxial and biaxial (linear/torsional) extensometers have been developed for use in materials-testing applications requiring large strain range, elevated temperatures and high testing speeds. The sensing elements in these extensometers are parallel capacitance plates. Water cooling of the sensing elements is used to achieve effective operating temperatures to 2000°F. The geometrical configurations of the capacitance plates and the electronic circuitry required to obtain linear transducers over a large strain range are described. Some examples of applications are given.
KeywordsMechanical Engineer Elevated Temperature Fluid Dynamics Water Cool Large Strain
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