68C Series Accelerometer

The Model 68C accelerometer is a small, compact triaxial device designed for vehicle impact and road testing.

68C Series Accelerometer

Description: The Model 68C accelerometer is a small, compact triaxial device designed for vehicle impact and road testing. Its mechanical overload stops provide high shock protection in rugged applications. Featuring ranges from 500 g to 2000 g and frequency response to 3000 Hz, this sensor is easily mounted in hard to reach places. This accelerometer is compliant with J211 specifications for anthropomorphic dummy applications.

Features:
• DC Response
• Durable Cable
• Reliable Performance
• Low Cost
• 2nd Generation MEMS Sensing Elements
• 2000 g Full Scale Range
• 2-10 VDC Excitation
• 0-50 °C Temperature Compensation
• <±50 mV Zero Measurand Output
• Mechanical Overload Stops
• Replaceable Sensors

Parameters
DYNAMIC Notes
Range(g) ±100 ±500 ±2000
Sensitivity (mV/g) 1 2.0 0.45 0.15
Frequency Response, 3 Axis (Hz) 0-1000 0-2000 0-4000 ±5%
Frequency Response, 1 & 2 Axis (Hz) 0-700 0-1400 0-3000 ±5%
Resonant Frequency (Hz) 4000 11,000 26,000
Damping Ratio 0.5 0.3 0.05 Typical
Shock Limit (g) 5000 5000 5000
Non-Linearity (% FSO) ±1 ±1 ±1 Of Reading
Transverse Sensitivity (%) <3 <3 <3
ELECTRICAL
Zero Acceleration Output (mV) <±50
Excitation Voltage (Vdc) 2 to 10
Input Resistance 2400-6000
Output Resistance (Ω) 2400-6000
Insulation Resistance (MΩ) >100 @100Vdc
Residual Noise (µV RMS) <10
Ground Isolation Isolated from Mounting Surface
ENVIRONMENTAL
Thermal Zero Shift (%FSO/°C) ±0.05 From 0 to 50°C
Thermal Sensitivity Shift (%/°C) -0.20 ±0.05 From 0 to 50°C
Operating Temperature (°C) -20 to 85
Storage Temperature (°C) -40 to 90
Humidity Epoxy Sealed, IP61 (M1 option)
PHYSICAL
Case Material Stainless Steel
Cable 12x #30 AWG Conductors PFA Insulated, Braided Shield, PU Jacket
Weight (grams) 9.0 Cable not included
Mounting (Screw) M2 x 0.4, 16mm Length, Supplied Torque 3 lb-in

 

1 Output is ratiometric to excitation voltage

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