Using HBM's data acquisition and analysis equipment for initial design testing and field trials, a manufacturer of earthmoving equipment has shortened its new product development lead time. Komatsu UK, based in Newcastle, selected HBM as the most appropriate and cost-effective solution after a comprehensive review of current dataloggers.

"By using HBM's MGCplus and its associated Catman software, we have achieved a more rapid turnaround of data than ever before. This has shortened the time taken to develop new machines and helps bring new products to the market quicker," notes Peter Beardwood, Komatsu UK's product development engineer.

Komatsu UK develops medium-sized crawler and wheeled excavators. These undergo a three-stage testing program to ensure they meet the wide range of customer requirements. Products and modifications are tested in local lab tests, in Komatsu's own build test area, and finally, in field trials at a local quarry.

"Our customers depend on high-quality machines that operate consistently and predictably, ensuring operator confidence and satisfaction," adds Beardwood. Testing of earthmoving equipment and excavators involves examining areas of high stress caused by variable loads in a mobile harsh environment. Vibration, while not particularly high, can be considered harsh during repeat or continuous testing to simulate operational conditions.

To meet its needs, Komatsu UK uses an HBM MGCplus with 128 single strain gauge input channels and customized Catman software script. The equipment is supplied in a vibration- and weatherproof housing with all wiring terminating in spring-loaded connectors. The equipment is calibrated annually by HBM, ensuring consistently high accuracy.

The system uses synchronous sampling over a trailing Ethernet connection to handle the large data file transfer rates and reduce any interference from electrical noise. Remarks Beardwood: "The HBM system gives good accuracy and repeatability with no data dropouts."

Komatsu UK is now looking to extend the system's functionality to allow for more extensive endurance trials carried out in local quarries. To achieve this, HBM is working with Komatsu UK to develop a wireless solution, since the trailing Ethernet restricts the ability of the test machine to move without relocating the base station.