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Title:
ENVIRONMENT INSPECTING DEVICE AND GAS CONCENTRATION CONTROLLING METHOD
Document Type and Number:
Japanese Patent JPH07204524
Kind Code:
A
Abstract:

PURPOSE: To reduce the number of control valves by devising the constitution of a dilute gas producing means regarding improvement of an environment inspecting device and stably and highly accurately control a gas concn. covering a wide range of a gas dilution ratio.

CONSTITUTION: A moisture conditioned air generating means 11 producing the moisture conditioned air A2 of a specific flow rate by controlling and mixing an effluent amount of a dry air A0 and a moist air and a dilute gas producing means 12 generating the dilute dry air A02 of a specific flow rate by controlling the effluent specific amount of the dry air A0 or producing the primary corrosive dilute gas G1 of a flow rate by controlling and mixing the effluent amount of a corrosive gas G0 and the dry air A0 are provided. Moreover, a mixing means 13 mixing the moisture conditioned air A2 and the dilute dry air A02 and supplying a humidity environment air A to an inspecting vessel 14 or mixing the moisture conditioned air A2 and the primary corrosive dilute gas G1 and supplying a humidity gas environment air AG to the inspecting vessel 14 is provided.


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Inventors:
NAKAYAMA MASAO
FUKUSHIMA SHIGERU
NAKAJIMA HIDEKAZU
YAMAZAKI SHIORI
ITABASHI MAYUMI
Application Number:
JP789694A
Publication Date:
August 08, 1995
Filing Date:
January 27, 1994
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
B01F23/10; B01L1/00; B01L5/00; G01N17/00; G01M99/00; (IPC1-7): B01L5/00; B01F3/02; B01L1/00; G01M19/00; G01N17/00
Attorney, Agent or Firm:
Keizo Okamoto