Survey and alignment design of Shanghai synchrotron radiation facility
Survey and alignment design of Shanghai synchrotron radiation facility
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发表时间：
2006
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通讯作者：
Yun Cheng-hao
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作者：
Yun Cheng-hao
上海同步辐射设施的测量和对准最大的挑战是地基软，定位要求高。控制网、辨识、现场预校中安装和平滑是安装校中过程的五个关键步骤。利用激光跟踪仪和静压调平系统，控制网的误差预算应在0.08 mm以内，其他步长误差预算应在0.05 mm以内。梁间构件的预期误差预算为0.12 mm，略小于0.15 mm的要求。除了误差控制的目标外，设计还考虑了可靠性、效率、成本和实时监控等因素。
The biggest challenge of survey and alignment is the soft groundwork and the tight positioning requirement for Shanghai Synchrotron Radiation Facility.Control network,fiducialization,pre-alignment and installation on site and smoothing are five crucial steps for the installation and alignment process.By utilizing the laser tracker and hydrostatic levelling system,the error budget should be within 0.08 mm for control network and 0.05 mm for the other steps.The expected error budget is 0.12 mm for elements between girders,which is a little smaller than the requirement of 0.15 mm.Besides the target of error control,reliability,efficiency,cost and real-time monitoring are factors considered in the design.