JPS56147040A - Device for producing dust at constant rate - Google Patents

Device for producing dust at constant rate

Info

Publication number
JPS56147040A
JPS56147040A JP4918080A JP4918080A JPS56147040A JP S56147040 A JPS56147040 A JP S56147040A JP 4918080 A JP4918080 A JP 4918080A JP 4918080 A JP4918080 A JP 4918080A JP S56147040 A JPS56147040 A JP S56147040A
Authority
JP
Japan
Prior art keywords
dust
air
chamber
concn
supplied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4918080A
Other languages
Japanese (ja)
Other versions
JPS6312266B2 (en
Inventor
Hiroaki Gomi
Nobuyuki Yoshida
Motohiko Kodama
Kenji Kaneko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi High Tech Corp
Original Assignee
Hitachi Ltd
Hitachi Electronics Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Electronics Engineering Co Ltd filed Critical Hitachi Ltd
Priority to JP4918080A priority Critical patent/JPS56147040A/en
Publication of JPS56147040A publication Critical patent/JPS56147040A/en
Publication of JPS6312266B2 publication Critical patent/JPS6312266B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light

Abstract

PURPOSE:To perform dust acceleration testing of an electronic apparatus or the like efficiently by creating an air environment having arbitrary dust concentrations. CONSTITUTION:The clean air taken in through an air filter 21 is supplied into a mixing chamber 11. On the other hand, the fine particles corresponding to dust in a hopper 26 creates dust air having high-concn. with the dry air from a dehumidifier 24 and this air is supplied into the chamber 11. In the chamber 11, both are throughly stirred and mixed, after which the concn. thereof is measured with a dust concn. measuring device 31, and the results of the measurement are applied to a micro CPU51. Here, the CPU51 controls the rate of supply of the clean air or the high-concn. dust air into the chamber 11 in such a manner that the dust concn. assumes a desired value. Thence, the mixed air in the chamber 11 is circulatively supplied to a dust acceleration testing chamber 42, where it is used for testing of specimens. In this way, the acceleration testing is accomplished efficiently.
JP4918080A 1980-04-16 1980-04-16 Device for producing dust at constant rate Granted JPS56147040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4918080A JPS56147040A (en) 1980-04-16 1980-04-16 Device for producing dust at constant rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4918080A JPS56147040A (en) 1980-04-16 1980-04-16 Device for producing dust at constant rate

Publications (2)

Publication Number Publication Date
JPS56147040A true JPS56147040A (en) 1981-11-14
JPS6312266B2 JPS6312266B2 (en) 1988-03-18

Family

ID=12823844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4918080A Granted JPS56147040A (en) 1980-04-16 1980-04-16 Device for producing dust at constant rate

Country Status (1)

Country Link
JP (1) JPS56147040A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105037A (en) * 1988-10-14 1990-04-17 Nippon Telegr & Teleph Corp <Ntt> Dust generator
EP0617293A2 (en) * 1993-03-26 1994-09-28 AT&T Corp. Dust particle exposure chamber
US5502998A (en) * 1994-04-25 1996-04-02 The Procter And Gamble Company Device and method for the simulation of samples of airborne substances
JP2009117318A (en) * 2007-11-06 2009-05-28 Powertech Technology Inc Method for raising temperature of chamber and its heating device
US20110290043A1 (en) * 2009-12-02 2011-12-01 Air Dynamics Industrial Systems Corporation Sand and Dust Environmental Testing System
CN108187514A (en) * 2018-01-30 2018-06-22 中国科学院过程工程研究所 A kind of dust generating system and its processing method
US10520423B2 (en) 2009-12-02 2019-12-31 Air Dynamics Industrial Systems Corporation Modular sand and dust environmental testing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50284A (en) * 1973-05-09 1975-01-06
JPS54126029U (en) * 1978-02-23 1979-09-03

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50284A (en) * 1973-05-09 1975-01-06
JPS54126029U (en) * 1978-02-23 1979-09-03

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105037A (en) * 1988-10-14 1990-04-17 Nippon Telegr & Teleph Corp <Ntt> Dust generator
EP0617293A2 (en) * 1993-03-26 1994-09-28 AT&T Corp. Dust particle exposure chamber
EP0617293A3 (en) * 1993-03-26 1995-11-15 At & T Corp Dust particle exposure chamber.
US5502998A (en) * 1994-04-25 1996-04-02 The Procter And Gamble Company Device and method for the simulation of samples of airborne substances
JP2009117318A (en) * 2007-11-06 2009-05-28 Powertech Technology Inc Method for raising temperature of chamber and its heating device
US20110290043A1 (en) * 2009-12-02 2011-12-01 Air Dynamics Industrial Systems Corporation Sand and Dust Environmental Testing System
US8733186B2 (en) * 2009-12-02 2014-05-27 Air Dynamics Industrial Systems Corporation Sand and dust environmental testing system
US20140338470A1 (en) * 2009-12-02 2014-11-20 Air Dynamics Industrial Systems Corporation Sand and Dust Environmental Testing System
US9677991B2 (en) * 2009-12-02 2017-06-13 Air Dynamics Industrial Systems Corporation Sand and dust environmental testing system
US10520423B2 (en) 2009-12-02 2019-12-31 Air Dynamics Industrial Systems Corporation Modular sand and dust environmental testing system
CN108187514A (en) * 2018-01-30 2018-06-22 中国科学院过程工程研究所 A kind of dust generating system and its processing method
CN108187514B (en) * 2018-01-30 2021-03-23 中国科学院过程工程研究所 Dust generation system and processing method thereof

Also Published As

Publication number Publication date
JPS6312266B2 (en) 1988-03-18

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