Patent ID: 7501095

Claim:
An on-line sampling apparatus for the metal nanoparticle fluid, which combines with a manufacture equipment which can produce metal nanoparticle fluid under a negative pressure environment of a vacuum chamber and on-line catch the nanoparticle fluid with real time process characteristics as sample, wherein the said sampling apparatus includes: a collector connecting to the said negative pressure environment vacuum chamber of the said manufacture equipment through a constant temperature pipeline, which is used to receive the said sample, and there is a first switch valve provided within the said constant temperature pipeline, a negative pressure generation unit connecting to the said collector, which provides a pressure difference lower than the said negative pressure environment vacuum chamber, and there is a second switch valve provided between the negative pressure generation unit and the collector, and a control unit connecting to the said first and second switch valves to carry out the control of the switch on/off thereof and the sampling control of the said pressure difference.