[求助]如何判断曲线是否稳定并计算时间?
采集到的数据曲线是先上升后下降到某一位置后上下波动,因为波动的幅度不是很大,相差0.05左右.用LV如何进行判断曲线是否处于稳定了呢?下面的图形是示意图,如何求稳定时间t呢?<img src="attachments/dvbbs/2006-7/2006759283692847.bmp" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-7/2006759283692847.bmp\');}" onmousewheel="return imgzoom(this);" alt="" />
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