JPS5517467A - Dust concentration meter - Google Patents

Dust concentration meter

Info

Publication number
JPS5517467A
JPS5517467A JP9073078A JP9073078A JPS5517467A JP S5517467 A JPS5517467 A JP S5517467A JP 9073078 A JP9073078 A JP 9073078A JP 9073078 A JP9073078 A JP 9073078A JP S5517467 A JPS5517467 A JP S5517467A
Authority
JP
Japan
Prior art keywords
dust
temperature
air layer
ray detector
radio isotope
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.)
Pending
Application number
JP9073078A
Other languages
Japanese (ja)
Inventor
Hideo Takeuchi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9073078A priority Critical patent/JPS5517467A/en
Publication of JPS5517467A publication Critical patent/JPS5517467A/en
Pending legal-status Critical Current

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  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE: To reduce the zero drift the dust mass value, by keeping the temperature of air layer between the radio isotope and the raidoactive ray detector constant.
CONSTITUTION: By adding the heater 8, temperature sensor such as thermister 9 and temperature control circuit 10, the temperature of air layer between the radio isotope 5 and the radioactive ray detector 6 can be controlled constantly. Thus, after collecting the dust contained on the filter paper 2 by the dust collector 1 and sampled with the sample gas suction pump 11, this gas is introduced to the gas meter 12 to measure the integrated flow. The filter paper 2 containing dust is carrid right with the revolution of the motor reels 3, 3', and the B ray intensity transmitting the dust is measured at the radioactive ray detector 6. The measurement and the transmitted B ray intensity before dust collection are inputted to the logarithmic operation 7 to obtain the mass of dust. The dust concentration can be determined by this and the integrated flow. Further, by keeping constant the temperature of the air layer between the radio isotope 5 and the radioactive ray detector 6, the zero drift of the dust mass value based on the mass change of the air layer can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP9073078A 1978-07-25 1978-07-25 Dust concentration meter Pending JPS5517467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9073078A JPS5517467A (en) 1978-07-25 1978-07-25 Dust concentration meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9073078A JPS5517467A (en) 1978-07-25 1978-07-25 Dust concentration meter

Publications (1)

Publication Number Publication Date
JPS5517467A true JPS5517467A (en) 1980-02-06

Family

ID=14006666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9073078A Pending JPS5517467A (en) 1978-07-25 1978-07-25 Dust concentration meter

Country Status (1)

Country Link
JP (1) JPS5517467A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58124444U (en) * 1982-02-18 1983-08-24 日立化成工業株式会社 conductive adhesive tape
JPS58130365U (en) * 1982-02-25 1983-09-03 シャープ株式会社 Configuration of wiring board connector
JPS61102078U (en) * 1984-12-10 1986-06-28
JPS63118171U (en) * 1987-01-26 1988-07-30
US4922419A (en) * 1980-11-26 1990-05-01 Omron Tateisi Electronics Co. System for performing banking transactions
CN104482999A (en) * 2014-12-15 2015-04-01 中冶长天国际工程有限责任公司 Calibration method and calibration device for dedusting amount of electric dust collector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922419A (en) * 1980-11-26 1990-05-01 Omron Tateisi Electronics Co. System for performing banking transactions
JPS58124444U (en) * 1982-02-18 1983-08-24 日立化成工業株式会社 conductive adhesive tape
JPS58130365U (en) * 1982-02-25 1983-09-03 シャープ株式会社 Configuration of wiring board connector
JPS61102078U (en) * 1984-12-10 1986-06-28
JPS63118171U (en) * 1987-01-26 1988-07-30
JPH054209Y2 (en) * 1987-01-26 1993-02-02
CN104482999A (en) * 2014-12-15 2015-04-01 中冶长天国际工程有限责任公司 Calibration method and calibration device for dedusting amount of electric dust collector
CN104482999B (en) * 2014-12-15 2017-02-22 中冶长天国际工程有限责任公司 Calibration method and calibration device for dedusting amount of electric dust collector

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