1. |
CURRENT TRENDS IN CLOSE-RANGE OPTICAL 3D MEASUREMENT FOR INDUSTRIAL AND ENGINEERING APPLICATIONS |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 188-200
ShortisM. R.,
FraserC. S.,
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摘要:
AbstractClose-range optical measurement systems have undergone a transformation during recent years, generated primarily by demand from the aerospace and manufacturing industries. The current trends are toward more automation of the measurement process and real-time solutions providing threedimensional oordinates in a user-defined reference frame. Further, the precision and reliability of the acquired data are steadily improving, while the systems which produce the data are requiring less skill to operate. The traditional role of the surveyor in close-range three-dimensional measurement is therefore no longer seen as a necessity, especially in routine operations such as quality control for industrial applications. Inevitably such systems are seen by users as‘off the shelf’tools to produce the desired results for a particular application in the most appropriate and efficient way. Theodolite, photogrammetric and non-conventional systems which fall into the category are described and discussed, and their capabilities and range of applications are assessed. The widespread adoption of these systems will have a considerable impact on close-range industrial measurement, and an attempt is made to predict the implications for the future.
ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.188
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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2. |
LATERAL REFRACTION IN TUNNELS |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 201-220
JohnstonA.,
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摘要:
AbstractThe effect of lateral refraction on a zigzag traverse in part of the Marine Service Tunnel of the Channel Tunnel is examined. A theory is proposed as to why lateral refraction occurs in tunnels and how and why its effects vary.
ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.201
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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3. |
ORTHOGONALITY AND SYMMETRY |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 221-225
GroupCosat,
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摘要:
AbstractBy applying the Pierce's abduction criterion the principle of orthogonality will be considered as an expression of a more fundamental and general principle.This idea yields some important practical results, e.g. the investigation of the best satellite configuration producing the lowest PDOP is greatly facilitated.
ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.221
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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4. |
A PROJECTION OF THE WORLD COASTLINE |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 226-232
BowringB. R.,
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摘要:
AbstractA formula is derived from the spherical Transverse Mercator equation suitable for the combined projection of the world coastline within a finite area using two different central meridians.
ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.226
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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5. |
ASTRONOMICAL DETERMINATION OF AZIMUTH AND LATITUDE BY OBSERVATION OF TWO UNKNOWN STARS WITHOUT TIME MEASUREMENT AND KNOWLEDGE OF ASTRONOMY |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 233-237
BuonocoreB.,
VassalloA.,
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摘要:
AbstractThe method permits the precise determination of the azimuth of a target and the astronomical latitude of the observer, by observation to two unknown stars sufficiently symmetric with respect to the north direction and observed at different times.Compared with analogous methods employing only one unknown star, this method presents the advantage of reducing the time necessary for the observations, and provides a sufficient number of solution equations with a consequent improved accuracy of the results. Furthermore the proposed method does not require the dead-reckoning position of the observer, is independent of the time observation and does not require a knowledge of the ephemerids. Generally, no astronomical knowledge is required, except for the ability to observe stars.
ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.233
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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6. |
BOOK REVIEW |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 238-239
WilliamsonI.,
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ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.238
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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7. |
ACCURATE AND AUTOMATIC: WILD APS FOR SAFETY |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 240-241
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ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.240
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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8. |
SIXTH INTERNATIONAL FIG SYMPOSIUM ON DEFORMATION MEASUREMENTS |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 242-242
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PDF (64KB)
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ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.242
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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9. |
SIXTH INTERNATIONAL GEODETIC SYMPOSIUM ON SATELLITE POSITIONING |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 243-243
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PDF (63KB)
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ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.243
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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10. |
MAJOR FIRSTS FOR NAV 91 |
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Survey Review,
Volume 31,
Issue 242,
1991,
Page 244-245
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PDF (134KB)
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ISSN:0039-6265
DOI:10.1179/sre.1991.31.242.244
出版商:Taylor&Francis
年代:1991
数据来源: Taylor
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