Capacitive vibration sensor AKC370

MEMSfor wind turbinefor railway applications

Product description
The AKC370 is a triaxial MEMS capacitive vibration sensor providing analog voltage output (0.5–4.5V). It uses single‑crystal silicon MEMS sensing with internal compensation and EMC/RFI shielding to deliver linear output and long‑term stability. Measurement ranges are selectable and an integrated self‑test function enables real‑time status verification.

Scope of application

• Bridge impact monitoring and structural health assessment
• Wind turbine vibration monitoring
• Traffic system monitoring, embankment analysis and high‑speed rail fault detection
• Monitoring of large rotating machinery and engines
• Low‑frequency vibration measurement and automatic monitoring systems
• Vibration diagnostics for medical equipment
• Automotive testing and durability monitoring
• Vibration control for rollers and conveyors

Parameters

• Model: AKC370
• Output: Analog voltage 0.5–4.5V (DC‑coupled), zero point ~2.5V
• Measurement ranges: selectable ±2g, ±4g, ±8g, ±16g (typical ±2g–±16g)
• Axes: Triaxial (X, Y, Z)
• Resolution: <1 mg; Noise density: <25 µg/√Hz (@ ±2g); <60 µg/√Hz (@ ±16g)
• Linearity: 1 %; Power‑on/off repeatability: <2 mg
• Response frequency / integrated low‑pass filter: 0–200 Hz; Bandwidth: 200 Hz @ 3 dB
• Shock survival: >100 g @ 11 ms (half sine); Shock recovery <1 ms
• Self‑test: ±1 g @ 10 Hz (ST line grounding)
• Operating / storage temperature: -40 to +85 °C
• Supply voltage: 9–36 VDC; Max current: ~35–38 mA @ 12 VDC
• Maximum calibration uncertainty: <1 mg; Reliability: MIL‑HDBK‑217 Level 2

Dimensions

• Product dimensions (shell): L55 × W37 × H29 mm
• Installation size: L48 × W28.6 × H4 mm
• Mounting screws: 3 × M4
• Product weight: ≤100 g (excluding cable)

Mechanical and electrical

• Protection class: IP67
• Electrical protection: EMC and RFI shielding
• Supply: 9–36 VDC; Power consumption: 35–38 mA @ 12 VDC (max)
• Shock resistance and recovery as specified above
• Integrated self‑test and selectable measurement range for flexible installation