surveying instruments

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Surveying Instruments

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Surveying Instruments. A surveyor ’s level : a revolving telescope on a tripod. It is fitted with cross hairs ,. a nd spirit level. It is used by surveyors in finding points of identical elevation. Automatic digital level uses barcode technology. - PowerPoint PPT Presentation

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Page 1: Surveying Instruments

Surveying Instruments

Page 2: Surveying Instruments

A surveyor’s level: a revolving telescope on a tripod

Page 3: Surveying Instruments

It is fitted with cross hairs,

Page 4: Surveying Instruments

and spirit level

Page 5: Surveying Instruments

It is used by surveyors in finding points of identical elevation

Page 6: Surveying Instruments

Automatic digital level uses barcode technology

Page 7: Surveying Instruments

To get an elevation measurement from a special level rod

Page 8: Surveying Instruments

This produces a direct electonic reading and storage of data about elevation…

Possible transcription errors are eliminated.

Page 9: Surveying Instruments

More expensive than a standard high quality automatic level.

• New digital levels have been further employed expanding their memory.

• When you have measured height and distance, all you have to do is aim a special code staff

Page 10: Surveying Instruments

Then you press a single key

and the results are immediately shown on the LCD display.

This way “digital” gets height and distance measurement very simple.

Page 11: Surveying Instruments

This system can be used as long as the cross hair is visible

• In low light conditions• In very bright sunshine

Page 12: Surveying Instruments

These instruments have been designed

• to provide accurancy which doesn’t change in adverse environments

Page 13: Surveying Instruments

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