超聲電機(jī)直驅(qū)的電動物鏡控制方法
發(fā)布時間：2018-07-20 18:35
【摘要】：針對超聲電機(jī)直接驅(qū)動的顯微鏡物鏡為滿足系統(tǒng)整體結(jié)構(gòu)緊湊、快速和準(zhǔn)確定位的需求,采用小型光電耦合器設(shè)計了位置檢測傳感器,配合遮擋片實現(xiàn)了物鏡位置和物鏡轉(zhuǎn)換器運(yùn)動方向的檢測。采用傳統(tǒng)比例-積分-微分控制(proportion-integral-derivative control,簡稱PID)和模糊控制提出了并行切換控制策略,將兩者結(jié)合建立了宏微相融合的預(yù)測控制方法,實現(xiàn)了物鏡轉(zhuǎn)換器的高精度、快速切換控制。在嵌入式控制系統(tǒng)中實現(xiàn)了所設(shè)計的控制算法和策略,并進(jìn)行了物鏡自動切換控制實驗。實驗結(jié)果顯示,采用筆者提出的定位結(jié)構(gòu)和控制方法,電動物鏡轉(zhuǎn)換器的重復(fù)定位誤差小于0.015°,定位時間小于3s,滿足自動顯微鏡系統(tǒng)中對電動物鏡轉(zhuǎn)換器重復(fù)定位精度的要求。
[Abstract]:In order to meet the need of compact, fast and accurate positioning of the system, a position detection sensor is designed by using a small photoelectric coupler, which is directly driven by an ultrasonic motor. The position of the objective lens and the moving direction of the objective converter are detected with the occluder. The parallel switching control strategy is proposed by using the traditional proportion-integral-derivative control (pid) and fuzzy control. A predictive control method combining macro and micro is established. The high precision and fast switching control of the objective lens converter is realized. The designed control algorithm and strategy are implemented in the embedded control system, and the objective lens automatic switching control experiment is carried out. The experimental results show that by using the positioning structure and control method proposed by the author, the repeat positioning error of the electric objective lens converter is less than 0.015 擄and the positioning time is less than 3 s, which meets the requirements of the precision of the electric objective lens converter in the automatic microscope system.
【作者單位】： 南京航空航天大學(xué)機(jī)械結(jié)構(gòu)力學(xué)及控制國家重點實驗室;
【基金】：國家自然科學(xué)基金重大研究計劃資助項目(91223201);國家自然科學(xué)基金面上資助項目(51575260) 南京航空航天大學(xué)科研基地創(chuàng)新創(chuàng)優(yōu)基金資助項目(NJ20160001) 江蘇高校優(yōu)勢學(xué)科建設(shè)工程基金資助項目
【分類號】：TH742
本文編號：2134396
[Abstract]:In order to meet the need of compact, fast and accurate positioning of the system, a position detection sensor is designed by using a small photoelectric coupler, which is directly driven by an ultrasonic motor. The position of the objective lens and the moving direction of the objective converter are detected with the occluder. The parallel switching control strategy is proposed by using the traditional proportion-integral-derivative control (pid) and fuzzy control. A predictive control method combining macro and micro is established. The high precision and fast switching control of the objective lens converter is realized. The designed control algorithm and strategy are implemented in the embedded control system, and the objective lens automatic switching control experiment is carried out. The experimental results show that by using the positioning structure and control method proposed by the author, the repeat positioning error of the electric objective lens converter is less than 0.015 擄and the positioning time is less than 3 s, which meets the requirements of the precision of the electric objective lens converter in the automatic microscope system.
【作者單位】： 南京航空航天大學(xué)機(jī)械結(jié)構(gòu)力學(xué)及控制國家重點實驗室;
【基金】：國家自然科學(xué)基金重大研究計劃資助項目(91223201);國家自然科學(xué)基金面上資助項目(51575260) 南京航空航天大學(xué)科研基地創(chuàng)新創(chuàng)優(yōu)基金資助項目(NJ20160001) 江蘇高校優(yōu)勢學(xué)科建設(shè)工程基金資助項目
【分類號】：TH742
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