In the third chapter , we present a class of c2 - continuous spline curves of degree 4 with some shape parameter . the segmented curves are all shape preserving to given polygon 第三章提出一類c ~ -連續的帶有形狀參數的四次樣條曲線,曲線上的所有曲線段的控制頂點由給定多邊形的頂點直接計算產生。
Summarize : multi - input , can be used cooperate with various sensors / transducers , measure 、 display and alarm control the physical quantities such as temperature 、 humidity 、 liquid level and flux # 118alues and transform them to export , can read and write all parameters via the computer through serial communication , besides it can offer 24vdc power supply for 2 - wire transducers , four - bit led displaying , the multi - segment curve correcting function is selectable , one meter can equip four alarm relay outputs 、 one transform ( or communication ) output and one equipped power supply outputs 萬能輸入,可與各類傳感器、變送器配合使用,實現溫度、濕度、壓力、液位、流量等物理量的測量、顯示、報警控制和變送輸出;通過串行通信口,可在上位計算機中實現全部儀表參數的讀寫;還可為兩線制變送器提供24vdc電源; 4位高亮度led數字顯示;對輸入信號有多段折線修正功能可選;一臺儀表最多可配4個報警繼電器輸出、一路變送(或通信)輸出和一路配電輸出。