摘要
利用激光波长作为长度计量的基准虽然能够达到较高的精度,但是在高档数控机床中仍然需要进一步提高其精度。因此,提出了使用DSP(数字信号处理器)来处理数控测量中的关键的数值处理的方法——数据延时分析法,通过DSP的数值运算来代替电细分网络及其放大电路,实现信号的细分工作,从而取消了电细分的所有环节,完全没有直流漂移,大大提高了测量的稳定性和可靠性,能够有效地实现高精度、快速位移的测量,使测量分辨率达到0.02μm,最高位移速度达到100m/min以上。
Though high precision can be achieved using Laser wave length as the standard for length measurement, but the precision need further improved in high precision CNC machine. A method which uses DSP to process main data in numerical control measurement is introduced in this paper： Data Latency Analy- sis. The subdivided net and its amplificution circuit is replaced by DSP data processing to subdivide the signal, so all of subdivision circuit is removed. This method is good for the measurement of high accuracy and quick moving. The measurement resolution is 0.02μm. The fastest moving speed is over 100 m/min.
出处
《电子工程师》
2008年第12期11-13,共3页
Electronic Engineer
关键词
激光测量
位移测量
数控机床
计算机数控装置
laser measurement
displacement measure
NC machine tool
CNC equipment
