BS 3680-3D:1980
Current
The latest, up-to-date edition.
Measurement of liquid flow in open channels. Stream flow measurement Moving-boat method
Hardcopy , PDF
English
31-10-1980
National foreword
Cooperating organizations
Methods
1 Scope and field of application
2 References
3 Definitions
4 Units of measurement
5 General
6 Principle of the moving-boat method
7 Limitations
8 Equipment
9 Measurement procedures
10 Computation of discharge
11 Accuracy of flow measurement
Annexes
A Description of the instruments and the functions of
the crew members
B A step-by-step outline of the computation procedure
which refers to the examples of measurement notes
for method 1 and method 2 shown in tables 1 and 2
respectively as a guide to the computer
Tables
1 Sample of computation notes of a moving-boat
measurement - Method 1
2 Sample of computation notes of a moving-boat
measurement - Method 2
3 Rating table for moving-boat meter No. 2-4
4 Table of lb, in metres
5 Sine of angle alpha
Figures
1 Sketch of stream with markers
2 General diagrams of velocity vectors
3 Definition sketch of midsection method of
computation superimposed over a facsimile of an
echo-sounder chart
4 Discharge hydrograph prepared from current meter
measurements and showing moving-boat check
measurements; Hudson river at Poughkeepsie, N.Y.,
August 30, 1966
5 Typical control panel of rate indicator and counter
- Method 1
6 Comparison of actual and computed values of
incremental widths
7 Comparison for deviations from cross-section or in
the direction of flow
8 Sketch of boat showing equipment - Method 1
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