Tacheometer Surveying with Special Notes on Plotting, Care and Adjustment of Instruments, Field Work, and Calculations |
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Page 24
... Wires . Dist . Dist . Circle . Height of Inst . From To SURVEYOR .. Reduced Level of Inst . Collima- tion . ( Right - hand ... Centre Reduced Line of Wire Level of Remarks . Rise . Fall . Sight at Staff Point Staff . + Reading . observed ...
... Wires . Dist . Dist . Circle . Height of Inst . From To SURVEYOR .. Reduced Level of Inst . Collima- tion . ( Right - hand ... Centre Reduced Line of Wire Level of Remarks . Rise . Fall . Sight at Staff Point Staff . + Reading . observed ...
Page 27
... centre wire reading is entered by itself in the column reserved for it ; if the stadia lines have been correctly read , the mean of their readings will be the centre wire reading . The line AB has now been determined both as to length ...
... centre wire reading is entered by itself in the column reserved for it ; if the stadia lines have been correctly read , the mean of their readings will be the centre wire reading . The line AB has now been determined both as to length ...
Page 50
... read as described on p . 27 et seq . , and are booked as shown in the field notes ... centre of its run , and the stadia web and axial web readings are taken to ... wire reading goes into the thirteenth column , under its appropriate head ...
... read as described on p . 27 et seq . , and are booked as shown in the field notes ... centre of its run , and the stadia web and axial web readings are taken to ... wire reading goes into the thirteenth column , under its appropriate head ...
Page 67
... centre wire reading from B on the staff at A , with the vertical arc at zero , was Feet . 1000.00 9.70 Therefore the collimation level of the instru- ment when set up at B is 1009.70 The centre wire reading on C , with vertical arc at ...
... centre wire reading from B on the staff at A , with the vertical arc at zero , was Feet . 1000.00 9.70 Therefore the collimation level of the instru- ment when set up at B is 1009.70 The centre wire reading on C , with vertical arc at ...
Page 68
... Centre wire reading on E 7.25 Therefore R.L. of E 1020-03 • From E.-R.L. of point D. 1014.98 Centre wire reading on D ( vertical arc at zero ) 9.62 R.L. of instrument collimation at E 1024.60 ( R.L. of E = 1024.60 -4.57 = 1020.03 ...
... Centre wire reading on E 7.25 Therefore R.L. of E 1020-03 • From E.-R.L. of point D. 1014.98 Centre wire reading on D ( vertical arc at zero ) 9.62 R.L. of instrument collimation at E 1024.60 ( R.L. of E = 1024.60 -4.57 = 1020.03 ...
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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