I.S. EN 61102:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
07-01-2010
English
01-01-1994
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 List of symbols
5 Measurement requirements
5.1 Requirements for hydrophones and amplifiers
5.1.1 General
5.1.2 Sensitivity of a hydrophone
5.1.3 Directional response of a hydrophone
5.1.4 Effective radius of a hydrophone active element
5.1.5 Choice of the size of a hydrophone active element
5.1.6 Bandwidth
5.1.7 Linearity
5.1.8 Hydrophone signal amplifier
5.2 Requirements for positioning systems and water
baths
5.2.1 Positioning systems
5.2.2 Water bath
5.3 Requirements for measurement systems
5.4 Recommendations for ultrasonic equipment being
characterized
6 Specification of performance for hydrophones and
amplifiers
6.1 Sensitivity
6.2 Effective radius
6.3 Hydrophone linearity
6.4 Hydrophone amplifiers
7 Measurement procedures
7.1 Preparation and alignment
7.1.1 Preparation
7.1.2 Aligning a hydrophone
7.1.3 Aligning an ultrasonic transducer and hydrophone
8 Beam characterisation
8.1 Primary pressure parameters
8.1.1 Peak-positive and peak-negative acoustic pressure
8.1.2 Pulse acoustic pressure
8.1.3 Spatial-peak pulse acoustic pressure
8.1.4 Spatial-peak r.m.s. acoustic pressure
8.1.5 Beam-average pulse acoustic pressure
8.1.6 Beam-average r.m.s. acoustic pressure
8.1.7 Spatial-average pulse acoustic pressure
8.1.8 Spatial-average r.m.s. acoustic pressure
8.1.9 Nonlinear propagation parameter
8.2 Derived intensity parameters
8.3 Derived pulse-intensity integral parameters
9 Acoustic output specification and labelling
Annexes
A (informative)
A.1 Hydrophones
A.1.1 Electrical loading considerations
A.1.2 Hydrophone signal amplifier
A.1.3 Alignment of hydrophones
A.1.4 Types of hydrophone
A.1.4.1 Ceramic probe hydrophones
A.1.4.2 PVDF probe hydrophones
A.1.4.3 PVDF membrane hydrophones
A.1.4.4 Relative performance of different types
A.1.5 Typical specification data for hydrophones
B (informative)
B.1 Acoustic pressure and intensity
C (informative)
C.1 Transducer and hydrophone positioning systems
D (informative) Rationale
Annex ZA (normative) Other International Publications quoted in
this standard with the references of the
relevant European Publications
Bibliography
Figures
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.