Standard
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AS 3778.6.4:2022
[Current]Measurement of water flow in open channels, Part 6.4: Measuring devices, instruments and equipment — Echo sounders for water depth measurements (ISO 4366:2007, IDT)
AS 3778.6.4:2022 identically adopts ISO 4366:2007, which provides information concerning the principles of operation, selection and performance criteria for echo sounders used in depth measurements for open-channel flow (and related) measurements. The use of standard terminology is promoted.
Published: 10/06/2022
Pages: 13
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Units of measure
5 Principles of operation
5.1 General
5.2 Theory of operation
5.3 System components
5.4 Non-recording echo sounders
5.5 Analog recording echo sounders
5.6 Digital echo sounders
5.6.1 General
5.6.2 Digitization techniques
5.6.3 Multiple-transducer systems
5.6.4 Single-transducer swath systems
6 Selection of instrument
6.1 General
6.2 Effect of operating frequency
6.3 Effect of beamwidth
6.4 Type of data display
6.4.1 Non-recording echo sounders
6.4.2 Analog recording echo sounders
6.4.3 Digital echo sounders
6.5 Accuracy
6.6 Type of transducer system
7 Instruments performance criteria
7.1 General
7.2 Information to be specified by the user
7.3 Information to be specified by the manufacturer
7.4 Housing
7.5 Additional features
7.5.1 Non-recording instruments
7.5.2 Recording instruments
7.5.2.1 Chart readability
7.5.2.2 Viewing window
7.5.2.3 Depth-range selector switch
7.5.2.4 Event marker
7.5.2.5 Sensitivity control
7.5.2.6 Draft adjustment
7.5.2.7 Velocity of sound adjustment
7.5.3 Digital instruments
7.5.3.1 Data display
7.5.3.2 Velocity of sound adjustment
7.5.3.3 Tracking window
7.5.3.4 Analog chart
8 Field use of echo sounders
8.1 Calibration
8.2 Interpretation of data
8.3 Precautions
9 Operations manual
Bibliography
Cited references in this standard
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