仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2015年
1期
104-107
,共4页
锁相倍频%光栅传感器%FPGA%信号处理
鎖相倍頻%光柵傳感器%FPGA%信號處理
쇄상배빈%광책전감기%FPGA%신호처리
phase-locked frequency multiplication%grating sensor%FPGA%signal processing
在高精度数字集成化光栅测控系统的研制过程中，光栅传感器输出信号的细分方法至关重要。为了在保证跟踪速度的前提下提高光栅传感器的细分精度，提出了基于智能数字锁相技术的光栅细分方法。研究了该方法中光栅跟踪速度与细分数的关系，所设计的智能K模计数器可根据不同的捕获过程来选择合适的K值，从而在保证输出信号稳定的情况下，缩短锁相时间，提高跟踪速度。利用FPGA设计并实现了该方法，通过仿真验证了其正确性，为数字集成化光栅测控系统的研制奠定了基础。
在高精度數字集成化光柵測控繫統的研製過程中，光柵傳感器輸齣信號的細分方法至關重要。為瞭在保證跟蹤速度的前提下提高光柵傳感器的細分精度，提齣瞭基于智能數字鎖相技術的光柵細分方法。研究瞭該方法中光柵跟蹤速度與細分數的關繫，所設計的智能K模計數器可根據不同的捕穫過程來選擇閤適的K值，從而在保證輸齣信號穩定的情況下，縮短鎖相時間，提高跟蹤速度。利用FPGA設計併實現瞭該方法，通過倣真驗證瞭其正確性，為數字集成化光柵測控繫統的研製奠定瞭基礎。
재고정도수자집성화광책측공계통적연제과정중，광책전감기수출신호적세분방법지관중요。위료재보증근종속도적전제하제고광책전감기적세분정도，제출료기우지능수자쇄상기술적광책세분방법。연구료해방법중광책근종속도여세분수적관계，소설계적지능K모계수기가근거불동적포획과정래선택합괄적K치，종이재보증수출신호은정적정황하，축단쇄상시간，제고근종속도。이용FPGA설계병실현료해방법，통과방진험증료기정학성，위수자집성화광책측공계통적연제전정료기출。
The subdivision method of output signal of the grating sensor is very important in the development process of digital integrated grating measurement and control system with high precision .In order to improve the segmentation accuracy of grating sensor in the premise of ensuring the tracking speed , the grating segmentation method based on intelligent digital phase locking technique was put forward and the relationship between the fine fraction and grating tracking speed was studied .The designed intel-ligent K counter can choose suitable K values according to different capture processes , thus shortening the lock time and improving the tracking speed in the case of stable output signal .The algorithm was designed and implemented by FPGA and the correctness of the algorithm was verified by simulation , thus laying the foundation for the development of digital integrated grating measurement and control system .
