Overview of Vacuum Technology

Brief Introduction

Vacuum technology mainly devotes to establish a physical environment, where the pressure is lower then atmospheric pressure so that craft production, physical measurement and scientific experiments.

The vacuum technology also includes four aspects– vacuum acquisition, vacuum measurement, leak hunting and vacuum application which are mutually reinforced in the development of vacuum technology.

Development History

The timeline has been summarized as the chart below.

Time Point (approx.)	Event
In 1643	An Italian physicist Torricelli found that atmospheric and atmospheric pressures in vacuum and natural space have been existing all the time.
In 1650	Otto von Grick from Germany made the piston vacuum pump. In 1654, he conducted the famous Madelberg hemispheric experiment in Madelberg.
In the late 19th Century	The success of the British Industrial Revolution greatly promoted the development of vacuum technology.
In the early 20th Century	The appearance of vacuum tubes speeded up the development of vacuum technology.
after 1940	Vacuum technology has become a separate discipline whose application is expanded to nuclear research (separation of cyclotron and isotope), vacuum metallurgy, vacuum coating and freeze-drying. Overview of Vacuum Technology