【摘 要】
：
Measuring the temperature and deformation synchronously at elevated temperatures is technically challenging and has become a major concern in the evaluation of mechanical properties.In this study,a simple,easy-to-implement,yet effective monochro-matic pyr
【机 构】
：
Key Laboratory of Applied Mechanics,Department of Engineering Mechanics,Tsinghua University,Beijing
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Measuring the temperature and deformation synchronously at elevated temperatures is technically challenging and has become a major concern in the evaluation of mechanical properties.In this study,a simple,easy-to-implement,yet effective monochro-matic pyrometry is established for non-contact and full-field temperature measurements,which can significantly reduce the error caused by the camera\'s channel crosstalk that commonly occurs in the existing improved two-color method.In addition,high-temperature digital image correlation,combined with band-pass filtering and monochromatic illumination,is applied for de-formation measurement.Subsequently,an experimental system was set up to validate the accuracy of the proposed method,which consists of a CCD camera for image capturing,a blue bandpass filter for radiation suppression,blue light irradiation for light compensation,and an infrared pyrometer for temperature recording.The results of the thermal heating experiment on the C/SiC sample proved that the selection of camera channel R in monochromatic pyrometry can reduce the error by channel crosstalk,and the proposed method is applicable for synchronous measurement of temperature and deformation.
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