Microthermogravimetry using a microcantilever hot plate with integrated temperature-compensated piezoresistive strain sensors.
Microthermogravimetry using a microcantilever hot plate with integrated temperature-compensated piezoresistive strain sensors.
复制标题
使用带有集成温度补偿压阻应变传感器的微悬臂梁热板进行微热重分析。
DOI：
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发表时间：
2008
影响因子：
1.6
通讯作者：
W. King
中科院分区：
文献类型：
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作者：
Jungchul Lee;W. King
本文报道了用微悬臂热板对纳米级石蜡样品进行热重分析。微悬臂热板具有集成的温控加热器和集成的温度补偿应变传感压敏电阻。微悬臂梁振动幅值的测量使用激光和位置敏感光电二极管，或使用压敏电阻。当悬臂梁被加热时，测量悬臂梁共振，这样可以测量分析物质量作为温度的函数。采用光学法和压阻法对分析物在1 ~ 3 ng范围内生成热重曲线，两种方法的结果比较良好。
This paper reports thermogravimetric analysis of nanogram samples of paraffin using a microcantilever hot plate. The microcantilever hot plate has an integrated temperature-controlled heater and integrated temperature-compensated strain-sensing piezoresistors. The microcantilever vibration amplitude was measured using either a laser and a position sensitive photodiode, or using the piezoresistors. The cantilever resonance was measured as the cantilever was heated, such that the analyte mass could be measured as a function of temperature. Both optical and piezoresistive methods were employed to generate thermogravimetric curves for analytes in the range of 1-3 ng, and the results of the two methods compared well.