Patent · US Expired

Ion mobility sensor

US6933496B2 · kind B2 · utility

0Cited by
10References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 18, 2001
Grant dateAug 23, 2005
Priority date—
Expiry dateFeb 25, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N27/622
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An ion mobility sensor which can detect both ion and molecules simultaneously. Thus, one can measure the relative arrival times between various ions and molecules. Different ions have different mobility in air, and the ion sensor enables measurement of ion mobility, from which one can identify the various ions and molecules. The ion mobility sensor which utilizes a pair of glow discharge devices may be designed for coupling with an existing gas chromatograph, where various gas molecules are already separated, but numbers of each kind of molecules are relatively small, and in such cases a conventional ion mobility sensor cannot be utilized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.