基于单片机的双波长红外测温结构设计

为了解决双波长测温不同波长的变换和精确定位测量的问题，设计了一种基于单片机的变换结构，利用电机匀速反馈控制电路和单片机周期捕获功能，准确跟踪和定位采样位置。基于这种结构提出了一种双波长测温法的暗电流电压修正方法，大大提高了测量的精度。通过实验使用设计的测量结构拟合出双波长温度测量函数，测量精度在1℃之内。

Structural Design of Dual-wavelength Colorimeter Based on the Single Chip

Aimed at solving the problem of wavelength changing and position locating for dual-wavelength colorimeter, a wavelength changing-over design with high precise position using motor feedback control circuit and programmable counter array （PCA） circle capture based on the single chip is proposed. Meanwhile, a dark circuit correction algorithm is analyzed, with which the measurement precision is greatly improved. Finally, the function of the measurement is completed by experiment, with precision within 1℃.