Timothy Graham Foat,Steven Walker,Christopher Coffey,Matthew Brookes
申请号：
US14342396
公开号：
US09807979B2
申请日:
2012.08.30
申请国别(地区):
US
年份:
2017
代理人:
摘要：
The present invention provides devices and methods for the impregnation of air with the vapor or aerosol of a substance in a ‘controllable manner to enable the testing or training of detection means to evaluate and quantify the presence of the substance in an enclosed volume, and iη• particular to enable production of training aids and quality assurance test items for use in canine-olfaction based security screening.
