Model 731A Ultra-Quiet Ultra Low Frequency Seismic Accelerometer

Brand: Wilcoxon Sensing Technologies
Top exit, ultra low frequency seismic accelerometer, case isolated, 2-pin MIL-C-5015 connector, 10 V/g.  
Features
  • Ultra high sensitivity
  • Ultra low-noise electronics for clear signals at sub micro-g levels
  • Low frequency capable
  • Low pass filtered to eliminate high frequencies
  • Reverse wiring protection
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Top exit, ultra low frequency seismic accelerometer, case isolated, 2-pin MIL-C-5015 connector, 10 V/g.  
Features
  • Ultra high sensitivity
  • Ultra low-noise electronics for clear signals at sub micro-g levels
  • Low frequency capable
  • Low pass filtered to eliminate high frequencies
  • Reverse wiring protection

Specifications

Approvals & Certifications

  • CE

Electrical Connectors

  • Cable (J9 / J9T2A)
  • Mating Connector: R6 Typical
  • Output Connector: 2-Pin, MIL-C-5015 Style

Element

  • Sensing Element Design: PZT Ceramic, Flexure

Enclosure, Body Material

  • 316L Stainless Steel

Frequency

  • Frequency Response (± 10%): 0.10 to 300 Hz
  • Frequency Response (± 3 dB): 0.05 to 450 Hz
  • Resonance Frequency: 750 Hz

Mounting

  • 3/8-16 Tapped Hole

Noise

  • Electrical Noise, Equivalent G (Broadband: 2.5 Hz to 25 kHz): 0.5 µg
  • Electrical Noise, Equivalent G (Spectral: 10 Hz): 0.01 µg/√Hz
  • Electrical Noise, Equivalent G (Spectral: 100 Hz): 0.004 µg/√Hz
  • Electrical Noise, Equivalent G (Spectral: 2 Hz): 0.03 µg/√Hz

Non-Linearity

  • Amplitude Non-Linearity: 1%

Output Impedence

  • Maximum

Power Requirement

  • 18-30 Vdc
  • Current Regulating Diode: 2-10 mA

Range

  • Acceleration Range: 0.5 G Peak

Seal Type

  • Hermetic

Sensitivity

  • Base Strain Sensitivity: 0.0001 G/μstrain
  • Electromagnetic Sensitivity at 60 Hz: 20 µg/Gauss
  • Sensitivity, ± 10%, 25° C (77° F): 10 V/g
  • Transverse Sensitivity: Maximum 1% of axial

Temperature Range

  • -10° to 65° C (14° to 150° F)

Vibration

  • Vibration Limit: 10 G Peak

Voltage

  • Bias Output Voltage: 9 Vdc

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