The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2016
Filed:
May. 31, 2013
Applicant:
Smiths Detection-watford Limited, Watford, GB;
Inventor:
John Patrick Fitzgerald, Watford, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/02 (2006.01); H03F 1/08 (2006.01); G01N 27/62 (2006.01); H03F 3/70 (2006.01);
U.S. Cl.
CPC ...
G01N 27/622 (2013.01); H01J 49/022 (2013.01); H03F 3/70 (2013.01); H03F 2200/267 (2013.01);
Abstract
Spectrometers including integrated capacitive detectors are described. An integrated capacitive detector integrates ion current from the collector () into a changing voltage. The detector includes a collector configured to receive ions in the spectrometer, a dielectric, and a plate arranged in an overlapping configuration with collector on an opposite side of the dielectric. The detector also includes an amplifier (). A capacitive detector with offset () is described.