Designed to overcome the high-temperature testing challenges associated with noise, vibration, and harshness (NVH) powertrain and vehicle underhood testing, the Automotive Sensors division of PCB Piezotronics offers the Model HT426E01 high-temperature preamplifier to broaden the options for NVH test engineers charged with collecting acoustic data under extreme temperature conditions.
Underhood temperatures can peak at +125°C under normal driving conditions and can be significantly higher near turbochargers and exhaust system components, such as manifolds and diesel particulate filters. The Model HT426E01 provides an operating temperature range of –40°C to +120°C (–40°F to +248°F), as well as a low attenuation factor of –0.06 dB and low electrical noise. The ½-in. preamplifier operates from ICP sensor power, terminating with a BNC connector and utilizing standard coaxial cables.
Common automotive applications include underhood measurements for benchmarking and issue identification, including engine-radiated induction, ancillary, and turbocharger noise; near-field measurements on manifolds; mufflers; exhaust after treatment components; and tailpipe noise. The HT426E01 preamplifier is most beneficial to NVH groups within OEMs and Tier 1 suppliers involved with testing of powertrain components, including engine, engine ancillaries, turbocharger, transmission, intake, and exhaust.
