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1. 1. Design guideline for audible warning signal and determination of sound pressure characteristics : Second version

   M1-uppsats, Örebro universitet/Akademin för naturvetenskap och teknik

   Författare :Mikael Olsson; Anders Söderberg; [2011]
   Nyckelord :warning signal; sound pressure characteristics; sound power level; horn placement; anechoic chamber; directivity; drilling rigs;

   Sammanfattning : Today Atlas Copco Rock Drills AB hasn’t got any method to determine how many warning alarms they need on their machines and how they should be mounted to use their full potential. At the moment a travel alarm is usually placed in the front of the machine and a reverse alarm in the back. LÄS MER