EN 61329:1996

FOREWORD
1 Scope and object
2 Normative references
3 Definitions and symbols
  3.1 Classification, structures and components
  3.2 Characteristics, symbols and units
4 Rated conditions
5 Characteristics and measuring methods
  5.1 Measuring conditions
  5.2 Measuring equipment
  5.3 Electroacoustic transducer characteristics of
      the sounder
  5.4 Electrical and mechanical characteristics of
      sounders
  5.5 Piezoelectric diaphragm
6 Physical and other characteristics
  6.1 Characteristics for all transducers
  6.2 Characteristics for sounders
  6.3 Characteristics for piezoelectric diaphragms
7 Classification of the characteristics to be specified
Tables
1 Characteristics of sounders to be specified, and
   classification
2 Characteristics of piezoelectric diaphragm to be
   specified, and classification
Figures
1 Voltage and d.c. component of square-wave signals
2 Diagram of sounder measuring system
3 Diagram of sounder testing system
4 Diagram of piezoelectric diaphragm measuring system
5 Example of a diaphragm supporter
Annex A - Bibliography
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Applies to sounders which are treated as entirely passive electroacoustic transducer elements. Piezoelectric diaphragms, which are the principal components of piezoelectric sounders, are also included. Standardize the definitions relating to these electroacoustic transducers, lists characteristics to be specified and the relevant methods of measurement.