一种新型SOC单片机在水平仪温度补偿的应用  

The Application of a New SOC MCU in Temperature Compensation of a Leveller

作　　者：芶志平 刘勇[1] 刘华[1] 田先宝[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2006年第2期159-160,共2页Piezoelectrics & Acoustooptics

摘　　要：在CW系列型水平仪的研制中,采用SOC单片机C8051F023为水平仪作温度曲线补偿。SOC单片机C8051F023具有与MCS-51内核及指令集完全兼容的微控制器,片内还集成了12位高速A/D转换器、12位D/A转换器和温度传感器等模拟部件。利用C8051F023片内集成的A/D转换器采集水平仪的输出信号,通过FIR数字滤波器滤出噪音和干扰信号,再根据温度传感器数据与标定的水平仪温度逐次漂移进行多点分段线性补偿,从而消除水平仪温度逐次漂移误差。SOC单片机进行温度曲线补偿的方法,在硬件成本增加很少的情况下,提高了水平仪的精度及可靠性,减少了实验成本、实验周期,有较好的社会效益和经济效益。In research and manufacture of leveller of CW series, C8051F023 type SOC MCU is adopted for compensating of temperature curve of leveller. The micro control union of SOC MCU on which simulation units like 12bit high-speed A/D converter, 12bit D/A converter and temperature sensors are integrated, is totally compatible to the core and commands of MCS-51. The signal of level meter is picked out from A/D converter inC8051F023 before the noise and the interfering signal is filtered in FIR digital filter, thus the temperature sequential drift error is removed through linear compensation in response to the data of temperature converter and calibration temperature of the leveller. The method of temperature compensation using SOC MCU raised the precision and stabilization of the leveller without too many raise of hardware costs. It also reduced the costs and the period of the test.

关 键 词：水平仪 SOC单片机 温度补偿 

分 类 号：V241[航空宇航科学与技术—飞行器设计]