C08Y40

The C08Y40 is a charge-mode (PE) three-axis general-purpose accelerometer built on a piezoelectric ceramic shear structure with a wide-bandwidth frequency response, reduced base strain and transverse sensitivity and a low sensitivity temperature response. With 300 pC/g charge sensitivity and a ±200 g range on each axis it is the most sensitive member of the family, with 300 pC/g and ±200 g on all three axes for low-level triaxial vibration. Typical uses include low-level triaxial vibration on large structures, modal analysis, building and foundation vibration, machinery monitoring and low-frequency measurement at high temperature.

With no built-in electronics the sensor works from −50 °C to +250 °C and pairs with any charge amplifier, which sets the low-frequency limit of the system. High-quality ceramics ensure long-term stability and shape-memory alloy fasteners keep the shear structure stable and reliable. The laser-welded titanium-alloy 38.6 × 38.6 × 20 mm housing weighs 159 g, each axis has its own calibration hole, a ⌀5.1 mm center through-hole bolts the sensor down at any orientation with the insulated mounting hardware supplied, and three M5 (10-32 opt.) connectors bring out the X, Y and Z channels.

Three axes, one bolt

Simultaneous X, Y and Z measurement from a single 38.6 × 38.6 × 20 mm titanium block weighing 159 g. The ⌀5.1 mm center through-hole mounts at any angle with the insulated M4 hardware supplied, per-axis calibration holes make verification straightforward, and three M5 (10-32 opt.) connectors take standard low-noise charge cables.

Charge mode, +250 °C

No internal electronics means nothing to overheat or saturate: the C08Y40 runs continuously at +250 °C and pairs with any charge amplifier or charge-input DAQ, with 3,500 pF capacitance and ≥ 10¹¹ Ω insulation resistance per axis for a clean, stable charge signal.

Shear-mode piezoceramic

Shear structure with reduced base strain and shape-memory alloy fasteners gives a ±5% response from 0.5 Hz to 1 kHz (±10% over 0.3 – 1.5k Hz) with resonance ≥ 6 kHz, 1% non-linearity and ≤ 5% transverse sensitivity, rated to 300 g rms vibration and 500 g pk shock.

Key specifications