Tacheometer Surveying with Special Notes on Plotting, Care and Adjustment of Instruments, Field Work, and Calculations |
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Page 5
... fixed base indicated by targets attached to a rod . But owing to additional complications in working out results , and a certain amount of delicacy in construction , the micrometer is not so generally useful a distance - measuring ...
... fixed base indicated by targets attached to a rod . But owing to additional complications in working out results , and a certain amount of delicacy in construction , the micrometer is not so generally useful a distance - measuring ...
Page 11
... into this circle are necessarily fixed , as the circle itself revolves , but they are otherwise similar to those of the horizontal circle . CHAPTER II . THE HANDLING OF INSTRUMENTS BEFORE attempting the INSTRUMENTS . 11.
... into this circle are necessarily fixed , as the circle itself revolves , but they are otherwise similar to those of the horizontal circle . CHAPTER II . THE HANDLING OF INSTRUMENTS BEFORE attempting the INSTRUMENTS . 11.
Page 15
... fixed to the telescope , and it is better to use this bubble for the purpose . The plate bubbles , owing to partial shade thrown by the A - shaped supports , differences of temperature , or want of exactitude in adjustment , may not be ...
... fixed to the telescope , and it is better to use this bubble for the purpose . The plate bubbles , owing to partial shade thrown by the A - shaped supports , differences of temperature , or want of exactitude in adjustment , may not be ...
Page 18
... fixed to the vernier arms will also remain in the centre of its run . Examine the verniers occasionally during the operation to make sure that they are still set at zero on the vertical arc , as the tangent screw I ' may have been ...
... fixed to the vernier arms will also remain in the centre of its run . Examine the verniers occasionally during the operation to make sure that they are still set at zero on the vertical arc , as the tangent screw I ' may have been ...
Page 19
... fixed against a tree or wall , until he is able to unpack his instrument from the box , set it up ready for work in a few minutes , and take vernier and staff readings without difficulty . Vernier Readings . Perhaps as good a method as ...
... fixed against a tree or wall , until he is able to unpack his instrument from the box , set it up ready for work in a few minutes , and take vernier and staff readings without difficulty . Vernier Readings . Perhaps as good a method as ...
Other editions - View all
Tacheometer Surveying with Special Notes on Plotting, Care and Adjustment of ... Mark Erskine Yorke Eliot No preview available - 2016 |
Tacheometer Surveying with Special Notes on Plotting, Care and Adjustment of ... Mark Erskine Yorke Eliot No preview available - 2016 |
Common terms and phrases
accuracy adjustment Bearing and Distance Calculation centimetre Centre wire reading clamp Closing Error collimation level column contour line correct cos² crown 8vo decimal demy 8vo diagram direction division Electric Engineers exactly fall of line fcap feet field book field notes figures folding plates footscrews graduated Handbook height illus instrument collimation leather length line of sight Log diff logarithms lower axis marked measured meridian method minus minutes of arc N. H. Schneider Observed Distance obtained parallel ruler Planimeter plotting position Practical protractor R.L. of instrument R.L. of line Railway reading on staff reduced level Rise or fall scale Second edition sewed sight at staff slide slide-rule spot-levels square starting-point station points survey tacheometer tangent screw telescope bubble theodolite Third edition transit axis traverse lines vernier scale vernier zero vertical angle vertical arc vertical circle York zero line
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