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三維觸發(fā)式坐標(biāo)測量機(jī)測頭誤差分析與性能實(shí)驗(yàn)
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國家自然科學(xué)基金資助項(xiàng)目(50627501)


Error Analysis and Performance Test of a Three-dimensional CMM Touch Trigger Probe
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    摘要:

    闡述了基于光纖布拉格光柵原理的三維觸發(fā)式坐標(biāo)測量機(jī)測頭傳感系統(tǒng)及控制箱設(shè)計(jì)方法，從機(jī)械結(jié)構(gòu)、傳感信號解調(diào)系統(tǒng)以及測量過程中逼近速度和逼近距離等幾個角度分析了測頭誤差來源。根據(jù)測頭的設(shè)計(jì)參數(shù)要求進(jìn)行了測頭的靈敏度、復(fù)位性和測力等性能實(shí)驗(yàn)，結(jié)果表明該測頭單方向重復(fù)定位精度為20nm，靈敏度為50nm，測量力小于5mN。

    Abstract:

    A 3-D coordinate measuring machine (CMM) touch trigger probe based on fiber Bragg gratings was developed. The sensing system and the control box of the probe were described respectively. The error of the probe may arise from the mechanical structure, the sensing signal demodulation system, the measuring speed and the approaching distance during the process. Experiments showed that probe positioning accuracy in single direction could reach 20nm, sensitivity came up to 50nm and a measuring force was less than 5mN. 

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丁邦宙,費(fèi)業(yè)泰,夏豪杰,劉芳芳.三維觸發(fā)式坐標(biāo)測量機(jī)測頭誤差分析與性能實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報,2011,42(11):228-230,213. Ding Bangzhou, Fei Yetai, Xia Haojie, Liu Fangfang. Error Analysis and Performance Test of a Three-dimensional CMM Touch Trigger Probe[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(11):228-230,213.

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