发明名称 |
Contact-free slip ring for survey instrumentation |
摘要 |
A contact free rotary transformer assembly can be used to transfer power and information between a stationary portion and a rotatable portion of a laser scanning device. The rotary transformer can consist of a pair of substantially parallel ferrite rings, each having disposed therein a coil for passing AC current. The assembly can use an optical fiber positioned near a rotational axis of the transformer to transfer optical information between the stationary and rotary portions. The optical fiber can include two portions connected by a rotational connection in order to allow the portions to rotate with respect to one another while maintaining the light path.
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申请公布号 |
US2005279914(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
US20050081976 |
申请日期 |
2005.03.16 |
申请人 |
DIMSDALE JERRY;WEST JOSEPH N |
发明人 |
DIMSDALE JERRY;WEST JOSEPH N. |
分类号 |
G01C15/00;G01J1/32;G01N21/27;G01S7/481;G01S17/89;(IPC1-7):G01J1/32 |
主分类号 |
G01C15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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