公开(公告)号：US20200292496A1

公开(公告)日：2020-09-17

申请号：US16891912

申请日：2020-06-03

Applicant: Honeywell International Inc.

Inventor： Aimin SU ,  Zhongxing Cao ,  Bing Chen ,  Feng Liang

IPC: G01N27/70 ,  H01J61/16 ,  H01J61/35 ,  G01N27/64

Abstract: Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102). Additional embodiments include a method of forming an ultraviolet lamp (100) for use with a photoionization detector, the method comprising applying at least one layer of a coating (120) onto an inner surface (110) of a sealed tube (102); sealing a crystal window (112) onto the sealed tube (102); filling the sealed tube (102) with at least one gas; sealing the sealed tube (102) containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (102); and directing the generated ultraviolet radiation through the crystal window (112) toward a sample gas in the photoionization detector.

公开(公告)号：US20190271662A1

公开(公告)日：2019-09-05

申请号：US16349068

申请日：2016-11-11

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Aimin SU ,  Zhongxing CAO ,  Bing CHEN ,  Feng LIANG

IPC: G01N27/70 ,  H01J61/35 ,  H01J61/16

Abstract: Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102). Additional embodiments include a method of forming an ultraviolet lamp (100) for use with a photoionization detector, the method comprising applying at least one layer of a coating (120) onto an inner surface (110) of a sealed tube (102); sealing a crystal window (112) onto the sealed tube (102); filling the sealed tube (102) with at least one gas; sealing the sealed tube (102) containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (102); and directing the generated ultraviolet radiation through the crystal window (112) toward a sample gas in the photoionization detector.