Research on coding method for matrix axile angle encoder based cpld 矩陣式編碼器譯碼方法的研究
Modern cylinder pressure acquisition system is deeply affected by the advanced computer hardware technology . a / d card with the capabilities of high resolution , high sampling rate , non discrepancy and setting sampling rate at will is combined with a lot of excellent measuring equipment such as crank shaft angle encoder , charge amplifier , industrial control computer , etc . we use four type 6117a46 spark plug cylinder pressure sensors made by kistler corp . , 高速發(fā)展的計(jì)算機(jī)硬件技術(shù)深刻影響著現(xiàn)代氣缸壓力數(shù)據(jù)采集系統(tǒng)的發(fā)展,高分辨率、高采集率、多通道、無相差和可以任意設(shè)定采樣頻率等特性的a / d板卡及一大批性能優(yōu)越的相關(guān)測(cè)試儀器如轉(zhuǎn)角信號(hào)發(fā)生器、電荷放大器、工控計(jì)算機(jī)等。
During the process of measuring valve phase , the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively . their signals are sampled and imported into computer . then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers 在氣門相位測(cè)量中,采用光柵位移傳感器和光電軸角編碼器,分別將發(fā)動(dòng)機(jī)進(jìn)、排氣門位移量和曲軸旋轉(zhuǎn)位移量的變化信號(hào)通過采樣,輸入計(jì)算機(jī),對(duì)三路信號(hào)加以比較找出氣門的相位關(guān)系,從而為設(shè)計(jì)開發(fā)人員、品質(zhì)控制人員提供可靠的測(cè)量參數(shù)。