PCB Piezotronics - PRODUCT NEWS



PCB Piezotronics launches new low frequency ICP® microphone and preamplifier for Infrasound measurements

PCB Piezotronics, a world leader in vibration, acoustic, pressure, force and torque sensors has launched a new ½in (12mm) microphone and preamplifier system, model 378A07 designed for use in low frequency testing and ideal for studies ranging from wind turbines to natural events like tornadoes.

Low frequency measurements are commonly required for wind turbines, sonic booms, diesel engines and specialised loudspeaker systems to name a few. Natural events such as tornadoes and earthquakes emit very low frequency pressure waves which can travel long distances without being blocked. Model 378A07 microphones can detect these low frequency signatures as potential danger.

This free-field prepolarised microphone has a frequency range of 0.13Hz to 20kHz (±2dB) which meets the IEC 61094-4 standard for test and measurement microphones. This covers infrasound which is below the normal hearing range for adults.

PCB® carries a full complement of prepolarised and externally polarised condenser microphones and preamplifiers. Prepolarised microphones use standard coaxial cables and are ICP® compliant, allowing power supplies to be shared with other ICP® compliant products such as accelerometers. This interchangeability can result in significant per-channel cost savings as well as reducing test set-up time. The 378A07 microphone is supplied with an A2LA and ILAC accredited initial calibration. Like all PCB products, it comes with a "Total Customer Satisfaction" guarantee.

November 2015

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