New line of intrinsically safe, extreme temperature charge accelerometers

26-09-2019 | PCB Piezotronics | Test & Measurement

PCB Piezotronics has released six new intrinsically safe (ATEX/CSA/IECEx), extreme temperature charge accelerometers with a UHT-12 sensing element. These devices have been produced for employment in aviation and power generation turbine research and development, and monitoring applications.


The EX357E90 2.3pC/g, is a single-ended output, axis of measurement parallel to the direction of the mounting screw. The EX357E91: 2.3pC/g, is single-ended output, axis of measurement perpendicular to the direction of the mounting screw. The EX357E92: 5.0pC/g, single-ended output, axis of measurement parallel to the direction of the mounting screw. The EX357E93: 5.0pC/g, single-ended output, axis of measurement perpendicular to the direction of the mounting screw. The EX357A94: 3.3pC/g, differential output, axis of measurement parallel to the direction of the mounting screw. The EX357A95: 3.3pC/g, differential output, axis of measurement perpendicular to the direction of the mounting screw.


The key features of these new devices incorporate proprietary crystal technology sealed in a hermetic package provides long-term reliability. No pyroelectric output gives accurate low-frequency measurements. Reduced thermal noise spikes stop false alarms during monitoring. More consistent sensitivity across an extensive temperature change gives greater accuracy. Shear mode crystals stop base strain and transverse measurement errors.


The company provides various charge amplifiers to support the launch of these new accelerometers, including Models 422M182 and EX682A40.

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