ДСТУ EN 61672-2:2022 Електроакустика. Вимірювачі рівня звуку. Частина 2. Тести оцінки зразків (EN 61672-2:2013, IDT; IEC 61672-2:2013, IDT)

ДСТУ EN 61672-2:2022
(EN 61672-2:2013, IDT; IEC 61672-2:2013, IDT)

Електроакустика. Вимірювачі рівня звуку. Частина 2. Тести оцінювання зразків

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

1 Scope

2 Normative references

3 Terms and definitions

4 Submission for testing

5 Marking of the sound level meter and information in the Instruction Manual

6 Mandatory facilities and general requirements

7 Environmental, electrostatic, and radio-frequency tests

7.1 General

7.2 Uncertainties for measurements of environmental test conditions

7.3 Influence of static pressure

7.4 Limits on air temperature, relative humidity and static pressure

7.5 Acclimatization requirements for tests of the influence of air temperature and relative humidity

7.6 Abbreviated test of the combined influence of air temperature and relative humidity

7.7 Influence of air temperature

7.8 Influence of relative humidity

7.9 Influence of electrostatic discharges

7.10 Influence of a.c. power-frequency and radio-frequency fields

8 Radio-frequency emissions and public power supply disturbances

9 Electroacoustical performance tests

9.1 General

9.2 Indication at the calibration check frequency

9.3 Directional response

9.4 Tests of frequency weightings with acoustical signals

9.5 Tests of frequency weightings with electrical signals

9.6 Corrections for the effect of reflections from the case of a sound level meter and diffraction around a microphone

9.7 Corrections to obtain free-field or random-incidence sound levels

9.8 Level linearity

9.9 Under-range indication

9.10 Self-generated noise level

9.11 Decay time constants for time weightings F and S

9.12 Toneburst response for sound level meters that measure time-weighted sound level

9.13 Toneburst response for sound level meters that measure sound exposure level or time-averaged sound level

9.14 Response to sequences of repeated tonebursts for sound level meters that measure time-averaged sound level

9.15 Overload indication

9.16 C-weighted peak sound level

9.17 Reset

9.18 Electrical output

9.19 Timing facilities

9.20 Crosstalk in multi-channel sound level meter systems

9.21 Power supply

10 Pattern evaluation report

Bibliography