Passive blast pressure sensor
Abstract
A passive blast pressure sensor for detecting blast overpressures of at least a predetermined minimum threshold pressure. The blast pressure sensor includes a piston-cylinder arrangement with one end of the piston having a detection surface exposed to a blast event monitored medium through one end of the cylinder and the other end of the piston having a striker surface positioned to impact a contact stress sensitive film that is positioned against a strike surface of a rigid body, such as a backing plate. The contact stress sensitive film is of a type which changes color in response to at least a predetermined minimum contact stress which is defined as a product of the predetermined minimum threshold pressure and an amplification factor of the piston. In this manner, a color change in the film arising from impact of the piston accelerated by a blast event provides visual indication that a blast overpressure encountered from the blast event was not less than the predetermined minimum threshold pressure.
- Inventors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083040
- Patent Number(s):
- 8,397,551
- Application Number:
- 12/770,983
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
King, Michael J., Sanchez, Roberto J., and Moss, William C. Passive blast pressure sensor. United States: N. p., 2013.
Web.
King, Michael J., Sanchez, Roberto J., & Moss, William C. Passive blast pressure sensor. United States.
King, Michael J., Sanchez, Roberto J., and Moss, William C. 2013.
"Passive blast pressure sensor". United States. https://www.osti.gov/servlets/purl/1083040.
@article{osti_1083040,
title = {Passive blast pressure sensor},
author = {King, Michael J. and Sanchez, Roberto J. and Moss, William C.},
abstractNote = {A passive blast pressure sensor for detecting blast overpressures of at least a predetermined minimum threshold pressure. The blast pressure sensor includes a piston-cylinder arrangement with one end of the piston having a detection surface exposed to a blast event monitored medium through one end of the cylinder and the other end of the piston having a striker surface positioned to impact a contact stress sensitive film that is positioned against a strike surface of a rigid body, such as a backing plate. The contact stress sensitive film is of a type which changes color in response to at least a predetermined minimum contact stress which is defined as a product of the predetermined minimum threshold pressure and an amplification factor of the piston. In this manner, a color change in the film arising from impact of the piston accelerated by a blast event provides visual indication that a blast overpressure encountered from the blast event was not less than the predetermined minimum threshold pressure.},
doi = {},
url = {https://www.osti.gov/biblio/1083040},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 19 00:00:00 EDT 2013},
month = {Tue Mar 19 00:00:00 EDT 2013}
}
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