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
