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组合分度法
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作者 黄本仁 《机械工人(冷加工)》 1990年第7期20-22,共3页
在铣床操作中,大部分的分度可用简单分度法解决,在遇到工件齿数Z和40不能相约,或者和40相约后分度盘上没有所需要的孔圈.如:61、63、79、101、109、126、127等这一类特殊齿数时,就必须采用差动分度法来解决。但差动分度法也有它的局限性... 在铣床操作中,大部分的分度可用简单分度法解决,在遇到工件齿数Z和40不能相约,或者和40相约后分度盘上没有所需要的孔圈.如:61、63、79、101、109、126、127等这一类特殊齿数时,就必须采用差动分度法来解决。但差动分度法也有它的局限性,当遇到加工61、63、79等这类数的斜齿圆柱齿轮或直齿锥齿轮时。 展开更多
关键词 组合分度法 分度 铣床
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The Application of the Bursa Model to the Integration of GPS Time Series
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作者 Wang Ziyan Lin Shu +2 位作者 Wu Yanqiang Zhan Wei Ding Xiaoguang 《Earthquake Research in China》 2014年第1期46-53,共8页
In this paper the method of combining the Bursa model to integrate several regional time series to derive a unified global time series is introduced in detail. Then,an example taken from CMONOC( Crustal Movement Obser... In this paper the method of combining the Bursa model to integrate several regional time series to derive a unified global time series is introduced in detail. Then,an example taken from CMONOC( Crustal Movement Observation Network of China) is used to test if the combination method is feasible. The precision of the integrated time series with the combination method is below 2mm( North),3mm( East),that is same as the results from the direct integration of the time series and the precision of the baseline is below 6mm,which proves that the combination method can be used to integrate several regional time series to derive a unified global time series. 展开更多
关键词 GPS time series INTEGRATION Bursa model
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