Patent ID: 11946832
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A tracer fluid injection system for seeding a wind tunnel, the system comprising:
a vapor cloud generator for generating a vapor cloud from a vapor cloud generating liquid, the vapor cloud generator comprising a chamber, the chamber having an air flow region and a reservoir in fluid communication therewith, the reservoir being in operable relationship with an electrically powered sub-ohm heating coil for vaporizing the vapor cloud generating liquid, containable within the reservoir, into a tracer fluid, a wick for transferring the liquid from the reservoir to the air flow region, the air flow region having an inlet for receiving air from an air source, whereby air entering the inlet is entrained with the vapor cloud generated by the sub-ohm heating coil, the air flow region having an exhaust in fluid communication with the air flow region of the chamber and in fluid communication a test section of a wind tunnel for controlled evacuation of the vapor cloud from the sub ohm vapor cloud generator to a predetermined position of the test section.