发明名称 |
Surveying instrument and method of controlling a surveying instrument |
摘要 |
A surveying instrument performs tracking of a target by controlling an orientation of a measuring unit relative to the target in two different angular directions. The control in one angular direction is based on detected light intensities which are modulated according to a first time pattern, and control of the orientation in the other angular direction is based on detected light intensities modulated according to a second time pattern just different from the first time pattern.
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申请公布号 |
US7640068(B2) |
申请公布日期 |
2009.12.29 |
申请号 |
US20070767742 |
申请日期 |
2007.06.25 |
申请人 |
TRIMBLE AB |
发明人 |
JOHNSON JOHAN;UTTERBACK ANNELI |
分类号 |
G05B19/18;G01B11/26;G01C3/08 |
主分类号 |
G05B19/18 |
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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