Now the driving system of cmf works in the analog mode . the operation principle of the driving system is analyzed , various driving signals are compared from power consume , feasibility , and driving frequency . then several kinds of driving circuits are studied in this paper 本文分析這種驅(qū)動系統(tǒng)的工作原理,并且從能量的觀點、實現(xiàn)的難易程度、對高低頻振動管的驅(qū)動等方面比較了各種波形的驅(qū)動信號,本文還研究幾種驅(qū)動電路,以產(chǎn)生相應(yīng)的驅(qū)動波形。
The 3rd section firstly elaborated and evaluated some means in common use to certain area highway rightful development scales such as land factor law , synaptic and node pattern law , and then proposed target planning analog mode basing on the grey clustering , which is the modification and the innovation to available means 第3章首先對國土系數(shù)法、類比法及節(jié)點模型法等確定區(qū)域公路網(wǎng)合理發(fā)展規(guī)模的常用方法進行了闡述和評價,在分析現(xiàn)有方法存在問題的基礎(chǔ)上,提出了基于灰色聚類基礎(chǔ)上的目標規(guī)劃類比模型,這是對現(xiàn)有方法的改進和創(chuàng)新。