B12A00

The B12A00 is a high-sensitivity uniaxial IEPE accelerometer built on a piezoelectric ceramic shear sensing element with a compact low-noise circuit that delivers a high signal-to-noise ratio across the band. With 10,000 mV/g (10 V/g) sensitivity and a ±0.5 g range it is the 10 V/g, ±0.5 g member of the family, with the lowest noise at 10 Hz for the quietest low-frequency structural motion. Typical uses include high-rise and long-span bridge monitoring, dam and foundation vibration, micro-vibration surveys of precision facilities and seismic-grade structural measurement.

High-grade piezoelectric ceramics deliver long-term output stability, and spectral noise of 0.12 µg/√Hz at 100 Hz with 0.000006 g rms broadband resolution resolves motion far below what a general-purpose sensor can see. A ≥ 10 s discharge time constant holds the ±5% response from 0.5 Hz to 1 kHz. The laser-welded HEX 26.1 × 32.5 mm stainless-steel housing is sealed to IP68 with a top M5 connector and an M5 stud thread on the base, with 10-32 connector and thread versions available.

10 V/g output

10,000 mV/g sensitivity puts even micro-g motion well above the DAQ noise floor, with spectral noise of 0.16 / 0.12 / 0.05 µg/√Hz at 10 / 100 / 1000 Hz and 0.000006 g rms broadband resolution across a ≥ 8 kHz resonance design.

Low-frequency IEPE electronics

Compact low-noise circuit with a ≥ 10 s discharge time constant gives a ±5% response from 0.5 Hz to 1 kHz and ±10% from 0.3 Hz to 1.5 kHz. Standard IEPE two-wire interface with 2–20 mA excitation and 8–12 V bias runs into any DAQ or monitoring system.

Sealed stainless housing

Laser-welded HEX 26.1 × 32.5 mm stainless-steel housing sealed to IP68, weighing 132 g, rated to 80 g rms vibration and 200 g pk shock and −40 to +80 °C. Top connector with M5 or 10-32 options and an M5 × 5 stud mount (10-32 optional) at 3.0 N·m.

Key specifications