Title:
【発明の名称】湿ったガスの露点計測方法および該方法を実施するための装置
Document Type and Number:
Japanese Patent JP2780045
Kind Code:
B2
Abstract:
A novel method is proposed for determining the dew point of a gas by means of a light ray reflected at a dew-point mirror (3). For measurements of fairly low dew points, in particular at temperatures of -50 DEG C to -95 DEG C, the dew-point mirror (3) is first exposed for a short time to a gas having a high water content. This achieves the result that an initial, fairly thick dew layer which appreciably shortens the measurement time is built up on the dew-point mirror (3). To carry out this method, a dew-point measuring system is proposed which has a gas valve (24), an injector pump (25) and a moistening unit (26) in a secondary circuit (23). A hygroscopic polyamide hose which ensures maintenance-free moistening of the gas by water molecules diffused into it has proved particularly advantageous.
Inventors:
ARUTOORU MUTSUTAA
Application Number:
JP13935489A
Publication Date:
July 23, 1998
Filing Date:
June 02, 1989
Export Citation:
Assignee:
ARUTOORU MUTSUTAA
International Classes:
G01N25/68; (IPC1-7): G01N25/68
Attorney, Agent or Firm:
Esaki Mitsufumi