发明申请
- 专利标题: PASSIVE BLAST PRESSURE SENSOR
- 专利标题(中): 被动BLAST压力传感器
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申请号: US12770983申请日: 2010-04-30
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公开(公告)号: US20100275676A1公开(公告)日: 2010-11-04
- 发明人: Michael J. King , Roberto J. Sanchez , William C. Moss
- 申请人: Michael J. King , Roberto J. Sanchez , William C. Moss
- 主分类号: G01N33/22
- IPC分类号: G01N33/22
摘要:
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.
公开/授权文献
- US08397551B2 Passive blast pressure sensor 公开/授权日:2013-03-19