IEC 62585 : 1.0

Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Reference environmental conditions<br>5 Uncertainties of measurement<br>6 General requirements for measurement <br>&nbsp;&nbsp;&nbsp;of adjustment value and corrections<br>7 Submission and inspection<br>8 Determination of the adjustment value <br>&nbsp;&nbsp;&nbsp;at the calibration check frequency<br>9 Determination of corrections for the <br>&nbsp;&nbsp;&nbsp;typical effects of reflections from the <br>&nbsp;&nbsp;&nbsp;case of the sound level meter and diffraction <br>&nbsp;&nbsp;&nbsp;of sound around the microphone<br>10 Determination of corrections for the deviation <br>&nbsp;&nbsp;&nbsp;of the microphone free-field frequency response <br>&nbsp;&nbsp;&nbsp;from a uniform frequency response<br>11 Determination of corrections for the use of <br>&nbsp;&nbsp;&nbsp;windscreens and similar accessories<br>12 Determination of corrections over a range of <br>&nbsp;&nbsp;&nbsp;frequencies when a sound calibrator is <br>&nbsp;&nbsp;&nbsp;recommended for use by the sound level meter <br>&nbsp;&nbsp;&nbsp;manufacturer<br>13 Determination of corrections over a range of <br>&nbsp;&nbsp;&nbsp;frequencies when a comparison coupler is <br>&nbsp;&nbsp;&nbsp;recommended for use by the sound level meter <br>&nbsp;&nbsp;&nbsp;manufacturer<br>14 Determination of corrections over a range of <br>&nbsp;&nbsp;&nbsp;frequencies when an electrostatic actuator is <br>&nbsp;&nbsp;&nbsp;recommended for use by the sound level meter <br>&nbsp;&nbsp;&nbsp;manufacturer<br>15 Documentation<br>Annex A (normative) - Calibration check frequency - <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determination of the adjustment value<br>Annex B (normative) - Determination of the effects <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of reflections from the case of the sound <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;level meter and diffraction of sound around <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the microphone<br>Annex C (normative) - Determination of the effects of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the use of windscreens and similar accessories<br>Annex D (informative) - Determination of corrections for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;use with sound calibrators to determine equivalent <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;free-field response at all frequencies of interest <br>Annex E (informative) - Determination of corrections for use <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;with comparison couplers to determine equivalent <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;free-field frequency response at all frequencies of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;interest <br>Annex F (informative) - Determination of corrections for use <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;with electrostatic actuators to determine equivalent <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;free-field frequency response at all frequencies of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;interest <br>Annex G (informative) - Comparison techniques<br>Annex H (informative) - Exact one-twelfth-octave frequencies <br>Annex I (informative) - Example calculations of expanded <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uncertainty of measurement <br>Bibliography

Abstract

Gives information on the corrections required over a range of frequencies in order for a periodic test of a sound level meter to be performed according to IEC 61672-3.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 29