Standard
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AS 3778.6.8-1992
[Superseded]Measurement of water flow in open channels, Method 6.8: Measuring devices, instruments and equipment — Position fixing equipment for hydrometric boats
Specifies methods of determining the position of hydrometric boats with respect to known points on the banks of rivers and estuaries. It is identical with and has been reproduced from ISO 6420:1984.
Published: 16/04/1992
Pages: 9
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and field of application
2 Reference
3 Definitions
4 Units of measurement
5 Requirements for position fixing
6 Alignment equipment
6.1 Targets
6.2 Optical devices
6.3 Radio frequency devices
7 Equipment that measures angles
7.1 Theodolites
7.2 Sextants
7.3 Electronic angle measuring equipment
8 Equipment that measures distance
8.1 Tag lines
8.2 Rangefinders
8.2.1
8.2.2
8.3 Stadia rods
8.4 Electronic distance measuring equipment
8.4.1 General
8.4.2 Instrument performance criteria
9 Selection of position fixing equipment
9.1 General
9.2 Accuracy requirements
9.3 Resource requirements
10 Operating instructions manual
11 Errors
11.1 General
11.2 Errors in position fixing for stream gauging
11.3 Errors in position fixing for morphological surveys
Annex A
A.1 Alignment techniques
A.2 Angular techniques
A.3 Distance measuring techniques
Annex B
Cited references in this standard
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