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DISCOM Mobile

DISCOM Mobile

DISCOM Mobile

Product catalog summary
Overview
DISCOM Mobile is a system designed for in-vehicle powertrain noise evaluation, allowing for the correlation of vehicle behavior and the generation of test-stand limits. It is used in end-of-line test benches under driving conditions with both learned and fixed parameter limits.
In-Vehicle Testing
DISCOM Mobile is customized for individual production lines and is used globally for acoustical quality analysis. It evaluates overall vehicle noise inside the cabin and identifies masking effects or noise from unforeseen transfer paths. This iterative process refines test limits for subsequent testing.
Noise Source Separation
The system uses order-synchronous resampling to separate noise sources from each other and external sources. It focuses on critical speed bands and torque conditions susceptible to noise, optimizing test system benefits.
System Composition
The system includes a data acquisition front end connected to a laptop or tablet, offering four to eight sensor channels. It comprises a TAS Nano or TAS28, CAN-bus adapter, ICP accelerometer, and microphones, all running on Microsoft Windows.
Analysis Methods
Vehicle measurements are stored in compatible formats for real-time monitoring. Spectrograms and order cuts help evaluate critical speed bands and set test-stand limits. Analysis methods include order analysis with microphones and accelerometers, and spectrograms of sound and vibration orders.
Benefits
DISCOM Mobile provides rapid, reliable testing of mechanical assemblies, optimizing test stand-to-vehicle correlation, compensating for cabin resonances, and identifying root causes of faults. It features high sampling rates, power-saving operation, and portability.
DISCOM NVH Analysis Systems
These systems analyze various noise sources and transfer paths, including engine, transmission, and road noise, to ensure comprehensive acoustical quality analysis.
Company Background
DISCOM has been developing acoustical quality analysis systems for over 20 years, now under Brüel & Kjær, enhancing production quality testing capabilities and customer support.
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Catalog excerpts

DISCOM Mobile-1

IN-VEHICLE POWERTRAIN NOISE EVALUATION DISCOM Mobile

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DISCOM Mobile-2

IN-VEHICLE TESTING Customized to fit individual production lines, DISCOM NVH Analysis systems are used by the automotive industry around the world for acoustical quality analysis. DISCOM Mobile, especially designed for in-vehicle testing, is a key element for ensuring optimal testing and getting the most out of your production line. DISCOM NVH Analysis systems Iterative process performs in-vehicle testing to are used to test automotive Using DISCOM Mobile means evaluate overall vehicle noise separate the noise sources that you can correlate vehicle inside the cabin and identify from each other...

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DISCOM Mobile-3

Robust system Analysis methods DISCOM Mobile offers the Benefits of DISCOM Mobile DISCOM Mobile consists of following analysis methods: Acoustic quality analysis as an integral a data acquisition front end stored as wave files and in • Order analysis with four part of the manufacturing process connected to a laptop or tablet DISCOM archive format, which enables rapid, reliable and thorough computer. The unique USB-based is compatible with the test-stand testing of all kinds of mechanical data acquisition front end offers evaluation software. The order assemblies. You can adapt DISCOM four to...

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DISCOM Mobile-4

DISCOM NVH ANALYSIS SYSTEMS Fast and accurate: • A/D inputs with up to 100 kHz sampling rate per channel and 24-bit resolution • AC, DC and ICP inputs, configurable for each channel • Four speed inputs with up to a 10 MHz pulse rate (in TAS28 configuration) • Sample-wise alignment of CAN data and A/D data Power saving: • The system can operate with 6 channels using only the 2.5 W USB power supply • No fan required – the system is completely quiet for in-vehicle noise measurements • Lightweight and truly mobile – everything fits into

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DISCOM Mobile-5

CABIN NOISE COMPONENTS Noise sources Noise sources Noise sources Head wind Engine and Head wind attached Engine and units attached units Noise sources Air cooling Transmission Head wind cooling intake Engine and Exhaust pipe Transmission Exhaust system intake units attached Tyres and road Exhaust system Tyres and road Exhaust pipe cooling Tyres and road Tyres and road Transmission intake Exhaust systempaths Exhaust pipe Transfer Tyres paths and road Tyres and road Transfer Transfer paths Transfer paths Airborne noise source Vibration transfer path Airborne noise source Airborne noise source Car...

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DISCOM Mobile-6

www.bksv.com/production-testing DISCOM For the past 20 years, DISCOM has developed and distributed systems for acoustical quality analysis used in end-of-line testing, and these systems are highly respected and used worldwide by companies in and around the automotive industry. Brüel & Kjær acquired DISCOM on July 26, 2016. This acquisition enables Brüel & Kjær to better support its customers by expanding its production quality testing capabilities to end-of-line analysis solutions. Brüel & Kjær also provides networks for DISCOM to better support customers and additional resources to facilitate...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.