Mini-environment control system and method

摘要

A mini-environment control device includes an individual enclosure to contain a sample and to isolate it from the external environment. An array of micropumps attached to the individual enclosure generates and maintains a controlled vacuum in the individual enclosure. Transfer means introduce the sample into the individual enclosure and extract it therefrom. The micropumps of the array of micropumps can be of a type employing the thermal transpiration effect. Temperature and pressure microsensors and a gas analyzer enable the operation of the array of micropumps to be controlled by an onboard microcomputer. The atmosphere surrounding a sample is therefore controlled.