温度传感器实验报告

727578E型温度第1次0.821.071.471.822.222.673.073.473.884.364.725.115.520.781.031.421.772.172.643.003.443.884.284.665.125.52第2次0.791.061.481.802.222.693.093.463.874.354.705.125.530.791.031.411.772.182.643.013.443.884.304.675.115.53第3次0.801.061.481.802.212.673.073.463.874.354.705.125.530.781.031.421.782.182.643.003.433.864.284.675.115.52平均值0.7931.0471.4461.7902.1922.6583.0403.4513.8734.3204.6875.1155.525冷端补偿电势1434143414341495143414341495143414341434143414951495uV测量温度33354044495559636669727578K型热电偶和E型热电偶温度与热电势的关系曲线:拟合直线:y=0.17161x-4.7253拟合曲线:y=0.10553x-1.4174静态灵敏度的计算:K型热电偶:S=0.17161E型热电偶:S=0.10553S=lim∆→0∆y∆x=dydx分辨率的计算:r=max⁡|∆xi,min|xmax-xmin线性度的计算:最小二乘线性度。K型热电偶:由matlab得出a=-4.7253,b=0.17161则最小二乘线性度ξLS=|(Δyi)max|yFS×100%=3.642%E型热电偶:由matlab得出a=-1.4174,b=0.10553则最小二乘线性度ξLS=|(Δyi)max|yFS×100%=3.026%