Page 58 - April 2008

The Automotive Sensors division of PCB Piezotronics (PCB®) has announced release of a new high-temperature preamplifier, designed to overcome high tem- perature testing challenges associated with NVH powertrain and vehicle under- hood testing applications, and to broaden options for NVH test engineers collect- ing acoustic data in high temperature areas.
Automotive engineers routinely perform NVH tests in areas around the power- train, where elevated operating temperatures can present major measurement chal- lenges. Underhood temperatures can peak at +125 0C under normal driving con- ditions, and can be significantly higher near turbochargers and exhaust system components, such as manifolds and diesel particulate filters. In the past, test engi- neers were limited by preamplifiers offering operating temperature ranges to + 70 0C. Model HT426E01 is a 1/2” preamplifier operating from ICP® sensor power, terminating with a BNC connector and utilizing standard coaxial cables. The model also features a low attenuation factor (-0.06 dB) and low noise characteris- tics, 4.9 μV, based on an A-weight scale. Contact: mbakewell@pcb.com
Scantek, Inc., is pleased to announce the availability of its newest product, the Noise Nuisance Recorder, N-140NNR. Often when there is an indoor or outdoor noise complaint, the acoustical engineer or enforcement office arrives at the scene when the noise is gone. The N-140NNR system allows documentation, analysis, and recording of the sound, all done by the complainant. Carried in an unobtrusive back-pack, the system takes seconds to set up. The complainant need only press a button when he/she hears the noise. The analyzer does the rest. It provides an ongoing measurement and analysis of the sound level and a solid-state recording of the sound itself, along with the exact date and time of the occurrence. You have a calibrated measurement with proof of the event. Now there is no need for an expert to be present when the sound occurs. Contact: PeppinR@ScantekInc.com
6,568,504
43.38.Ja MULTI PURPOSE HEADGEAR
John H. Cowgill and Charles W. Elroy, Jr., assignors to Sportniks,
Incorporated
27 May 2003 .Class 181Õ178.; filed 26 November 2001
A collapsible watch cap can be extended and used as a megaphone. The illustration shows a man literally talking through his hat.—GLA Clockwise from upper left—folded headgear, hat with brim, hat without brim, megaphone, traffic cone, tote, hearing aid.—Editor
56 Acoustics Today, April 2008