Posted to News on 13th Apr 2015, 14:47
New accelerometer from PCB Piezotronics eliminates noise spikes
PCB Piezotronics is announcing a new crystal technology being used in high-temperature applications called Ultra High Temperature 650degC (1200degF) or UHT-12 (www.pcbpiezotronics.co.uk/UHT). Accelerometers designed with UHT-12 make measurements with better accuracy and lower noise over large temperature profiles.
Bob Metz, PCB's Director of Aerospace & Defense, says: "This new development solves the gas turbine manufacturers' problems with ceramic-based sensors known as pyroelectric noise. The material also has the ability to operate in shear mode, isolating the accelerometer from thermal influences and base strain errors."
UHT-12 technology allows accelerometers to be insensitive to temperature variations. This is well suited for applications such as test and monitoring vibration of gas turbine engines (both in-flight and in test cells), rocket motors and thruster assemblies, turbocharger and exhaust system test and engine balancing.
PCB's UHT-12 family comprises ICP and charge output accelerometers including models 320C52, 357D90, 357D91, EX611 and series 339. The new high-temperature crystal technology has also been adapted to pressure sensor series 115 and 176.
UHT-12 technical advantages include elimination of pyroelectric noise spikes up to 650degC/1200degF, consistent sensitivity over a wider temperature range and isolation of the crystal from base strain and transverse measurement errors.
More information about the UHT-12 range can be found at www.pcbpiezotronics.co.uk.
