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AS 3778.6.4:2022
$120.32
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.
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
