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Motorsports
Earpiece Sensor System
Delphi Earpiece Sensor System
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The Delphi Earpiece Sensor System was designed to measure dynamic forces applied to a driver's head during an accident. This system uses small sensors integrated into the left and right radio earpieces worn by the driver. The six accelerometers—one for each of the three axes on each side—measure head acceleration in the X, Y, and Z axes during an accident. The combined data from the Delphi Earpiece Sensor System and on-board accident data recorder provide accident researchers valuable data for a clearer picture of what happens during an accident.
Benefits
- Precisely measures dynamic forces
- Provides accurate, valuable data
Typical Applications
The Delphi Earpiece Sensor System is used by IndyCar© and National Hot Rod Association (NHRA®). Delphi can also work with additional motorsports series.
Delphi Earpiece Sensor Wiring Diagram
Key Technical Statistics
| Dimensions | 0.39 x 0.41 x 0.26 inches (9.9 x 10.2 x 6.6 mm) |
| Weight | 0.105 ounces (3 grams) |
| Temperature Range | 0 to 70°C |
| Supply Voltage | 5 V |
| Supply Current | 3 mA |
| Output Voltage Range | 0-5.0 V |
| Measurement Range | ±250 g |
| Sensitivity | 8.5 mV/g |
| Filtering | 400 Hz, 2 pole Bessel filter |
| Pre-filter Headroom | ±400 g |
For more information about Delphi motorsports products, please contact:
Brad Stout, Delphi Senior Manager of Motorsports Marketing and Technical Operations
a.brad.stout@delphi.com
IndyCar© is a trademark of Indy Racing League, LLC and Brickyard Trademarks, Inc.
NHRA® is a registered trademark of the National Hot Rod Association.
