4630A Series Accelerometer

The Model 4630A is an ultra low-noise triaxial accelerometer offering both static and dynamic response.

4630A Series Accelerometer

Description: The Model 4630A is an ultra low-noise triaxial accelerometer offering both static and dynamic response. The silicon MEMS accelerometer is gas damped in order to provide a wide stable frequency response. The three independent circuit assemblies have independent signal conditioning and can operate on common or separate power supplies. The model 4630A accelerometer is available in ranges from ±2 to ±100g and temperature compensated from -40°C to 125°C.

Features:

  • MEMS Triaxial DC Accelerometer
  • Micro-g Resolution, 97dB Range
  • ±2g to ±100g Dynamic Range
  • Full Power and Signal Conditioning
  • 8 to 30Vdc Excitation Voltage
  • Gas Damped MEMS Sensors
  • -40° to 125°C Operating Range
  • Low Transverse Sensitivity
Parameters
DYNAMIC Notes
Range (g) ±2 ±3 ±5
Sensitivity (mV/g) 1000 667 400 ±5%
Frequency Response (Hz) 0-150 0-250 0-300 ±5%
Frequency Response (Hz) 0-350 0-450 0-500 ±1dB
Natural Frequency (Hz) 700 750 800
Non-Linearity (%FSO) ±1.0 ±1.0 ±1.0
Transverse Sensitivity (%) <3 <3 <3 <1 Typical
Damping Ratio 0.7 0.7 0.7
Shock Limit (g) 2000 2000 2000
Residual Noise (µV RMS) 25 30 20 Passband
Residual Noise (µg/√Hz RMS) 2 3 3 Spectral
ELECTRICAL
Zero Acceleration Output (mV) ±50 Differential
Excitation Voltage (Vdc) 8 to 30
Excitation Current (mA) <5 Per channel
Bias Voltage (Vdc) 2.5
Full Scale Output Voltage (Vdc) ±2
Output Resistance (Ω) <100
Insulation Resistance (MΩ) >100 @100Vdc
Turn On Time (msec) <100
Ground Isolation Isolated from Mounting Surface
ENVIRONMENTAL
Thermal Zero Shift (%FSO/°C) ±0.010
Thermal Sensitivity Shift (%/°C) ±0.014
Operating Temperature (°C) -55 to 125
Compensated Temperature (°C) -40 to 125
Humidity Epoxy Sealed, IP62
PHYSICAL
Case Material Anodized Aluminum
Cable 15x #30 AWG Conductors PFA Insulated Leads, Braided Shield, TPE Jacket
Weight (grams) 40 (cable not included)
Mounting 2x #4 or M3 Screws
Mounting Torque 6 lb-in (0.7 N-m)

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