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3 ω method
释义
3 ω method
Encyclopedia
工学
热导率测量
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3 ω method
3ω法
通过给予被测样品直接接触的感温器中施加频率为1ω的交变电流,探测和分析感温器中频率为3ω的谐波电压信号,获取被测材料热导率、比热容和热扩散率等热物理性质的一种测量方法。
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