H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 47/00 (2006.01) G01N 27/64 (2006.01) H01J 49/00 (2006.01) H01J 49/02 (2006.01)
Patent
CA 2246782
A drift chamber for an ion mobility spectrometer includes an array of conductive electrodes (12, 14, 16, 18) mounted upon a common insulating substrate (10) such as a printed circuit board. The printed circuit board may also form one side of a rectangular enclosure (24), thus allowing the drift chamber to be substantially smaller than previously. The printed circuit board may have a track (60) around its periphery to which the rectangular enclosure (24) can be attached, thus creating a gas-tight seal.
Espace de dérive pour un spectromètre de mobilité ionique comportant un réseau d'électrodes conductrices (12, 14, 16, 18) montées sur un substrat commun (10) tel qu'une carte de circuit imprimé. La carte de circuit imprimé peut aussi former l'un des côtés d'une enceinte rectangulaire (24), permettant ainsi de réduire sensiblement la dimension de l'espace de dérive par rapport à la conception antérieure. La carte de circuit imprimé peut comporter une piste (60) sur le pourtour de sa périphérie à laquelle l'enceinte rectangulaire (24) peut être fixée, créant ainsi un scellement étanche aux gaz.
Fetherstonhaugh & Co.
Graseby Dynamics Limited
Smiths Detection-Watford Limited
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