Case isolated triaxial accelerometers offer expanded frequency range

22-04-2022 | PCB Piezotronics | Test & Measurement

PCB Piezotronics has announced two upgraded triaxial ICP accelerometers with an increased frequency range extending upper limits to 10,000Hz at 5% deviation. Models 354B04 and 354B05 are case isolated to ensure measurement quality in the presence of electrical noise and sensors are TEDS IEEE 1451.4 enabled for easy tracking and record keeping.

The models were created with durable and rugged titanium housings to keep electrical isolation even if the housing is scratched or damaged through regular use. The hermetically sealed housings are low outgassing by design for usage in vacuum environments including spacecraft testing. The models have an operating temperature range from -65F to +200F (-54C to +93C) and a shock overload limit of ±5,000g pk.

“Case isolation helps to ensure measurement fidelity in the presence of electrical noise that is typically encountered during electric vehicle vibration testing,” said Bob Metz, director of PCB’s aerospace and defence division. “Models 354B04 and 354B05 are also ideal for flight and ground vibration testing applications for new eVTOL aircraft, environmental stress screening (ESS), modal analysis, and structural testing.”

The case isolated design eradicates the necessity for unique isolation bases, coatings and insulated mounting screws. The thru hole mounting configuration permits these accelerometers to be rotated 360 degrees before tightening the screw, providing for easy installation. Built-in ICP microelectronics give a low noise, low impedance output signal able to transmit over hundreds of feet of cable length. Any ICP signal conditioner or data acquisition system that includes an ICP constant current power supply can be employed to power the accelerometers.