可以参考以下链接:
1、What Kind of Accuracy Can I Expect for Software-Timed Applications in LabVIEW?
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P9QiSAK&l=en-US
(中文版:http://digital.ni.com/public.nsf/websearch/0B08BF1BE13C3E3C8625754600333F89?OpenDocument)
2、NI LabVIEW中的定时与同步
https://www.ni.com/en/shop/labview/timing-and-synchronization-in-ni-labview.html