Customer Need / Challenge
- Spacecraft landing on a lunar or planetary surface require parachutes to deploy at high speeds under high loads. For example, NASA tested the Mars Science Laboratory parachute in an 80×120-foot wind tunnel at 80 mph speeds and loads up to 85,000 pounds.
- A 1000-series fatigue-rated LowProfile™ load cells with eccentric load compensation is employed to sustain and measure high loads with 300% overload protection.
- Load cells ensure accurate measurement of applied loads during parachute deployment testing. Multiple tests allow engineers to test various parachute packing techniques.
- 1000 Fatigue-Rated LowProfile™ Load Cells capacity up to 50K pounds-force (lbf).
- REB-101 Heat Treated Steel Rod End Bearing.
- INF-USB3 USB Interface Module.
|HOW IT WORKS|
- Support structure capable of sustaining required loads is built inside wind tunnel.
- A single load cell is installed as part of the support structure and connected to the parachute deployment system.
- After the wind tunnel is brought up to speed, a mortar launches the parachute, aiming toward the upper middle portion of the tunnel where speeds are highest.
- As the parachute canopy deploys, the load cell(s) measure the force applied with an accuracy of 0.03%.