1. Function and Application
The Linear Headrest Impact Tester is designed to evaluate the linear impact performance of automotive seating headrests in compliance with FMVSS 222. The tester measures how headrests respond to linear forces and ensures occupant safety during rear-end collisions.
The system features a P.C.-based control and data acquisition system and operates using standard shop air. The impact ram is powered pneumatically and pre-charged via a small accumulator. Accelerometers mounted in the headrest capture impact pulses for precise evaluation of energy absorption and headrest performance.
This tester is suitable for automotive manufacturers, seating suppliers, and safety laboratories requiring FMVSS compliance and detailed impact analysis.
2. Applicable Test Standards
FMVSS 201 – Headrest and seatback impact requirements
FMVSS 222 – School bus seating and headrest linear impact testing
Custom Laboratory Standards – Configurable for additional linear impact testing protocols
3. Technical Specifications
| Item | Specification |
|---|---|
| Test Type | Linear headrest impact testing |
| Construction | Powder-coated aluminum and steel frame |
| Impact Ram | Pneumatically driven, shop air powered |
| Accumulator Pressure | Approx. 65 PSI pre-charge, adjustable via precision regulator |
| Control System | P.C.-based, Visual Basic software on Windows platform |
| Data Acquisition | Graphical capture from two accelerometers mounted in head |
| Output Options | Print results on included plain paper printer, save internally or to disc |
| Operation | Manual reset of ram, unlock rebound latch, charge accumulator, fire |
| Safety Features | Accurate pressure monitoring, controlled pneumatic ram |
| Warranty | 1 year manufacturer’s warranty |
4. Features and Advantages
FMVSS Compliant: Meets FMVSS 201 and 222 linear impact requirements.
Precise Pneumatic Impact: Accumulator-controlled ram provides repeatable and consistent linear impact energy.
Advanced Data Acquisition: Dual accelerometers capture impact pulse; results can be printed or saved for analysis.
User-Friendly Operation: Windows-based software with intuitive controls, cursors, and calculation features.
Durable Construction: Powder-coated frame for long-term reliability.
Easy Training: P.C. literate operators can master setup and testing quickly.
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