Magnetic biasing angle measurement instrument
The utility model discloses a magnetic biasing angle measurement instrument, protractor including horizontal installation, the laser pen, parallel mount is at the transparent organic glass board of protractor top, install the spirit level in the clearance is installed to the accessory, install two b...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a magnetic biasing angle measurement instrument, protractor including horizontal installation, the laser pen, parallel mount is at the transparent organic glass board of protractor top, install the spirit level in the clearance is installed to the accessory, install two blocks of slit boards on transparent organic glass board perpendicularly, magnetic declination gaugerod and compass, leave accessory installation clearance between transparent organic glass board and the protractor, two slit plate structures are the same and be parallel to each other, and all be provided with the slit along vertical direction, the laser pen slope is installed on transparent organic glass board, and the inclination is adjustable, the directional slit of its laser sending end, theaxis of laser pen, article two, the vertical central line of slit, 0 scale mark of protractor, the centre of a circle coplane of protractor. This magnetic biasing angle measurement instrument adoptspolaris location survey met |
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