| 000 | 00754cab a2200205 4500 | ||
|---|---|---|---|
| 001 | A185 | ||
| 008 | 090401t1989 xxu||||| |||| 00| 0 eng d | ||
| 035 | _a(Sirsi) u27549 | ||
| 041 | _aeng | ||
| 100 | _aGorham, Barry | ||
| 245 | _aLaser guidance system for tunnelling machines | ||
| 260 | _c1989 | ||
| 350 | _a0 | ||
| 490 |
_aLand & Minerals Surveying _v7(9) September 1989, 422-427(6) |
||
| 520 | _aDescribes the development of a laser based unit for the automatic position and attitude measurement of a tunnel-boring machine. The system is derived from the laser-based robotic total station `Laserfix` recently developed at North-East London Polytechnic. | ||
| 650 | _aLASERS | ||
| 690 | _aLAND SURVEYING | ||
| 942 | _n0 | ||
| 948 | _c04/03/1997 | ||
| 999 |
_c18547 _d18547 |
||