Fast shutter apparatus
An apparatus for protecting diagnostic equipment from blast damage by rapidly interposing a shutter between the equipment and the blast area. The apparatus comprises a sensor for sensing a trigger signal associated with the blast and for converting it into a voltage pulse. The voltage pulse is received by the first end of a firing pin. A pressure chamber holds a gas under pressure. The second end of the firing pin is located inside the pressure chamber and is located above a foil member covering an orifice. When the voltage pulse reaches the second end, a point-to-plane discharge ruptures the foil, allowing the gas to enter a drive housing and quickly move a drive piston away from the foil. A drive rod connects the drive piston to a shutter and as the drive piston is moved down, the shutter moves into a closed position, protecting the equipment from debris.
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Dept. of Energy
- Application Number:
- ON: TI85006501
- OSTI ID:
- 6015346
- Country of Publication:
- United States
- Language:
- English
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Fast shutter apparatus
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