Title:
【発明の名称】高速ガス濃度計の応答特性試験方法及び装置
Document Type and Number:
Japanese Patent JP2873914
Kind Code:
B2
Abstract:
PURPOSE:To obtain a time constant of a high speed gas densitometer such as a high speed response type hydrocarbon analyzing meter or like. CONSTITUTION:While tracer gas with a fixed density is let flow toward a sampling port 9 of a high speed gas densitometer to be tested, and the stream of tracer gas is interrupted or made to conduct by a disc 1 rotated at high speed. The change of density of gas flowing in through the sampling port 9 is measured by a high speed gas densitometer.
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Inventors:
UEHARA KYOSHI
Application Number:
JP17310694A
Publication Date:
March 24, 1999
Filing Date:
July 04, 1994
Export Citation:
Assignee:
KOKURITSU KANKYO KENKYUSHOCHO
International Classes:
G01N27/62; G01N1/00; (IPC1-7): G01N1/00; G01N27/62
Domestic Patent References:
| JP587736A | ||||
| JP262938A | ||||
| JP61199658U | ||||
| JP6291229U | ||||
| JP5339792B2 | ||||
| JP567171B2 | ||||
| JP5137552B1 |
Attorney, Agent or Firm:
Morishita Yasushi (1 person outside)