The Amphenol/PCB Piezotronics 301A11 is a calibration-grade ICP accelerometer engineered for precision vibration measurement in laboratory and field environments. Built on quartz shear-mode sensing with hermetically welded 316L stainless steel construction, it delivers traceable acceleration data across a broad dynamic range for system validation and transducer calibration workflows.
Technical Specifications
Measurement Performance
• Sensitivity: 100 mV/g (10.2 mV/(m/s²)) ±2.0%
• Measurement range: ±50 g peak (±490 m/s² peak)
• Frequency response: 0.5 to 10,000 Hz (±5%), 0.3 to 14,000 Hz (±10%), 0.2 to 20,000 Hz (±3 dB)
• Resonant frequency: ≥35 kHz
• Non-linearity: ≤1% (zero-based, least-squares method)
• Transverse sensitivity: ≤3%
• Broadband resolution: 0.004 g rms (0.039 m/s² rms)
• Overload limit: ±5000 g peak (±49,050 m/s² peak)
Electrical Characteristics
• Excitation: 23–30 VDC, 2–20 mA constant current
• Output impedance: <100 Ω
• Output bias: 11–17 VDC
• Discharge time constant: 2.0–5.0 seconds
• Settling time (within 10% bias): <12.0 seconds
• Spectral noise: 65 µg/√Hz @ 10 Hz, 20 µg/√Hz @ 100 Hz, 15 µg/√Hz @ 1 kHz
Environmental
• Operating temperature: −65 to 250 °F (−54 to 121 °C)
– Key Features
• Quartz shear-element design for stability and repeatability
• Hermetic welding eliminates moisture ingress
• Low output impedance supports long cable runs
• Selectable mounting threads accommodate shaker tables and test articles
• Compact hex package: 1 3/16 in × 1 1/2 in (30.2 mm × 38.1 mm); 6.2 oz (176 g)
– Typical Applications
• Accelerometer calibration and traceability verification
• Vibration transducer reference standard
• Shaker table system characterization
• Laboratory shock and vibration testing
– Compatibility & Integration
• Connector: 10-32 coaxial jack (side-mounted)
• Shaker mounting: 1/4-28 female thread (2–5 ft·lbf torque)
• Unit-under-test mounting: 10-32 female thread (10–20 in·lbf torque)
• M3 × 0.50 thread adapter option (4–5 in·lbf torque)
