Gaskin, Ian C.,Kovacich, Richard P.,Edwards, Christopher R.,Hobby, James D.,Lopez, Martin
申请号：
EP20120153176
公开号：
EP2485045(B1)
申请日:
2012.01.30
申请国别(地区):
欧洲专利局
年份:
2018
代理人:
摘要：
This present invention relates to a device for the measurement of the amount of oxygen in a gas mixture, or other gas with significantly different magnetic susceptibility than the background gas mixture, by the use of a suspended test body in a magnetic field that experiences force due to the magnetic susceptibility of the measurand gas. In order to enable a fast time response for the system with a change in oxygen concentration, a flow regime is presented which allows a fast sweep of the measurement volume combined with adjustable, balanced pressure drops via a flow balancing element (or elements) within the flow channels to independently minimise flow related uncertainties.
