Product category:
Testing, analysing and monitoring equipment
News Release from: Bruel and Kjaer UK | Subject: Type 3638 exhaust noise inspector
Edited by the Engineeringtalk Editorial
Team on 23 October 2003
All-in-one system analyses engine noise
A new all-in-one exhaust noise inspector system has been introduced to the marketplace by Bruel + Kjaer.
A new all-in-one exhaust noise inspector system has been introduced to the marketplace by Bruel + Kjaer The development of the system by the company comes in light of the Directive on Motor Vehicles 70/157/EEC "permissible sound level and exhaust system of motor vehicles" testing and the ISO working draft 5130:2002 test procedures which has been implemented by many European countries to make checks on vehicles in use
This article was originally published on Engineeringtalk on 20 Jun 2008 at 8.00am (UK)
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The new Type 3638 exhaust noise inspector system is an easy to use sound level measurement system designed for automatic measurements of exterior exhaust noise from cars, motorbikes, lorries and mopeds under stationery conditions (engine sweep test), simultaneously with (noncontact) speed detection.
Primarily of use to local authorities and local police inspectors who will appreciate the ergonomics of the system, allowing measurements of vehicles in use to be performed by one single operator, as well as determining variations in the exhaust sound level which can result from: the wear, maladjustment or modification of particular components when the defect does not appear by visual inspection; or the partial of complete removal of devices reducing the emission of certain sound levels.
The Type 3638 exhaust noise inspector uses a unique calculator and algorithm to allow the noise level and the engine speed to be measured with the same microphone.
Noncontact measurements of the engine speed by computation from the acoustic signal of the exhaust noise (no need to open the engine compartment), complete with instantaneous reports can be achieved.
A large display with all necessary information and the additional green and red lights allow extremely simple and quick measurements, making it the easiest system on the market to operate.
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