任 培， 袁中凡
（四川大學(xué)制造科學(xué)與工程學(xué)院，四川 成都 610065）
摘 要：介紹了一種新的利用三線擺測(cè)量轉(zhuǎn)動(dòng)慣量的系統(tǒng)及方法，該方法采用傳感器和數(shù)據(jù)采集裝置采集計(jì)算轉(zhuǎn)動(dòng)慣量所需的周期信號(hào)和力信號(hào)；并通過開發(fā)出專門的軟件，最終計(jì)算出待測(cè)物體的轉(zhuǎn)動(dòng)慣量。該方法將機(jī)械裝置與電子部件和計(jì)算機(jī)相結(jié)合，與原有的傳統(tǒng)測(cè)量方法相比，避免了手動(dòng)操作和人工計(jì)算，方便實(shí)用，能夠?qū)Υ笮蛣傮w進(jìn)行測(cè)量；整個(gè)過程趨于自動(dòng)化，提高了測(cè)量精度和效率。
關(guān)鍵詞：三線擺；轉(zhuǎn)動(dòng)慣量；傳感器；采樣；軟件
中圖分類號(hào)：TP271+.4 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1672-4984（2007）01-0037-03
Development moment of inertia measuring system
REN Pei， YUAN Zhong-fan
（College of Manufacturing Science and Engineering，Sichuan University，Chengdu 610065，China）
Abstract:This paper introduced a new three-line pendulum system and method to measure moment of inertia.In this system，sensors and data collecting equipment were used to collect periodic signal and force signal，while special software was developed to calculate the moment of inertia.This method combined mechanical equipment with electronic and computer.Compared with existing method，this one avoids manual operation and calculation and is practical and convenient.It can be used to measure good-sized rigid body.The whole process tends to be automatic with improvement in precision and efficiency.
Key words：Three-line pendulum；Moment of inertia；Sensor；Sample；Software
