Test Facilities. The test facility shall meet the requirements of paragraph 2.1 Vehicle test facilities The test facility shall meet the requirements of paragraph 2.1 Component test facilities The test facility shall meet the requirements of 6.1 The sound emitting component of the external sound generation system is recommended be mounted 0,5 m above a reflecting plane (floor) of the test space. The primary propagation axis of the sound emitting component shall be oriented horizontal to the reflecting plane. The microphone is recommended be located 1,0 m from the centre of the component at a height of 0,5 m. NOTE Specific recommendations have been given for placement of the external sound generation system and the microphone within the test facility to provide guidance for successful testing. There are other arrangements of the external sound generation system and microphone that can be effective to measure frequency content.
Appears in 2 contracts
Sources: Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles