公开(公告)号：US3998101A

公开(公告)日：1976-12-21

申请号：US600607

申请日：1975-07-31

Applicant: Robert Fagan Donat Bradshaw ,  Colin Frank Richardson Wainwright

Inventor： Robert Fagan Donat Bradshaw ,  Colin Frank Richardson Wainwright

IPC: G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01N33/00 ,  G01N33/22

CPC classification number: G01N33/0011 ,  G01N1/2273 ,  G01N2001/024 ,  G01N2033/0081

Abstract: A method and apparatus for detecting the presence of vapor-producing substances such as explosives contained within an item of baggage, in which the item of baggage is enclosed in a chamber and the air pressure in the chamber is varied cyclically in order to mix at least a portion of the air in the item of baggage with that in the chamber. A vapor detector is then used to detect the presence in the chamber air of vapors given off by an explosive substance or drug (e.g., cannabis) contained within the item of baggage.

Abstract translation: 一种用于检测包含在行李物品内的蒸气产生物质如爆炸物的存在的方法和装置，其中行李件被包围在腔室中，并且腔室中的空气压力周期性地变化以至少混合 行李物品中的一部分空气与室内的空气。 然后使用蒸汽检测器来检测在包含在行李物品内的爆炸性物质或药物（例如大麻）发出的蒸气的室内空气中的存在。