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SU1203406A1 - Method of determining dust concentration in closed volume - Google Patents

Method of determining dust concentration in closed volume Download PDF

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Publication number
SU1203406A1
SU1203406A1 SU833632155A SU3632155A SU1203406A1 SU 1203406 A1 SU1203406 A1 SU 1203406A1 SU 833632155 A SU833632155 A SU 833632155A SU 3632155 A SU3632155 A SU 3632155A SU 1203406 A1 SU1203406 A1 SU 1203406A1
Authority
SU
USSR - Soviet Union
Prior art keywords
intensity
dust concentration
light beam
closed volume
determining
Prior art date
Application number
SU833632155A
Other languages
Russian (ru)
Inventor
Ярослав Леонович Миндюк
Владимир Федорович Мищенко
Original Assignee
Киевское Научно-Производственное Объединение "Аналитприбор"
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.)
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Publication date
Application filed by Киевское Научно-Производственное Объединение "Аналитприбор" filed Critical Киевское Научно-Производственное Объединение "Аналитприбор"
Priority to SU833632155A priority Critical patent/SU1203406A1/en
Application granted granted Critical
Publication of SU1203406A1 publication Critical patent/SU1203406A1/en

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Description

liUniiOC :ii lUMl-liOr (M ВТОрИЧШ)liUniiOC: ii lUMl-liOr (M VTORICHSH)

труб(pipes (

Н .( llOfJU -КТ 11рИСМ ;(N. (llOfJU -CT 11RISM; (

();-:П:;;, 4к)рМ v.(); -: P: ;;, 4k) pM v.

312034064312034064

изменение величин lo(to), т.„(1о), TO,,,(to),L«(t,) К ,) Uo , (7)change in the values of lo (to), t. „(1о), TO ,,, (to), L« (t,) K,) Uo, (7)

K (to), a следовательно, сигнал .) нагде К - коэффициент пропорциональности,K (to), and therefore the signal.) Here, K is a proportionality coefficient,

выходе компенсационного канала не равен L nобеспечивающий необходимое измеЬ кк (1,-) LifCK(to) Uo (6)нение напр жени  питани  { ,..the output of the compensation channel is not equal to L but providing the required change in kk (1, -) LifCK (to) Uo (6) the voltage of the power supply {, ..

Изменение напр жени  питани  и„ изл Сигнал управлени  с выхода усилител - чател  в момент времени t, по сравнениюThe change in the supply voltage and the control signal from the output of the amplifier at the moment of time t, compared

преобразовател  19, подаваемый на управ-с начальным моментом времени to учитываетConverter 19, fed to control-with the initial time to take into account

л емый источник 21 питани  излучател  3,вариации величин Io{to), Tjoltn), т.По) заThe source of power supply 21 of the radiator 3, variations in the magnitudes of Io {to), Tjoltn), i.e.

равенпромежуток времени At t, - to.equal time interval At t, - to.

Claims (1)

СПОСОБ ОПРЕДЕЛЕНИЯ КОНЦЕНТРАЦИИ ПЫЛИ В ЗАМКНУТОМ ОБЪЕМЕ, включающий освещение пыли пучком света и регистрацию рассеянного на частицах света в зоне анализа через оптические окна, корректировку интенсивности освещающего пучка света по степени запыленности оптических окон и определение концентрации пыли по интенсивности рассеянного света, отличающийся тем, что, с целью повышения точности измерений при больших значениях концентраций, осуществляют дополнительную корректировку интенсивности освещающего пучка света путем изменения его интенсивности с помощью сигнала, соответствующего интенсивности прошедшего через весь замкнутый объем пучка света до достижения его постоянной интенсивности в зоне анализа.A METHOD FOR DETERMINING DUST CONCENTRATION IN A CLOSED VOLUME, including lighting a dust with a light beam and registering the light scattered by the particles in the analysis zone through optical windows, adjusting the intensity of the illuminating light beam by the dustiness of the optical windows and determining the dust concentration from the intensity of the scattered light, characterized in that in order to improve the accuracy of measurements at high concentrations, carry out additional adjustment of the intensity of the illuminating light beam by changing it Intensity via a signal corresponding to the intensity transmitted through the enclosed volume of the light beam to reach its constant intensity in the analysis zone.
SU833632155A 1983-08-09 1983-08-09 Method of determining dust concentration in closed volume SU1203406A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU833632155A SU1203406A1 (en) 1983-08-09 1983-08-09 Method of determining dust concentration in closed volume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833632155A SU1203406A1 (en) 1983-08-09 1983-08-09 Method of determining dust concentration in closed volume

Publications (1)

Publication Number Publication Date
SU1203406A1 true SU1203406A1 (en) 1986-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU833632155A SU1203406A1 (en) 1983-08-09 1983-08-09 Method of determining dust concentration in closed volume

Country Status (1)

Country Link
SU (1) SU1203406A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215908A1 (en) * 1992-05-14 1993-11-18 Ubbo Prof Dr Ricklefs Optical particle size measurement appts. e.g. for clean room - periodically modulates light incident on measuring vol. e.g by varying light source power or using grating, acoustic=optic modulator or hologram, and detects scattered light.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Клименко А. П. и др. Непрерывный контроль концентрации пыли. Киев, Техника, 1980, с. 129-134. Авторское свидетельство СССР № 890166, кл. G 01 N 21/01, 1981. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215908A1 (en) * 1992-05-14 1993-11-18 Ubbo Prof Dr Ricklefs Optical particle size measurement appts. e.g. for clean room - periodically modulates light incident on measuring vol. e.g by varying light source power or using grating, acoustic=optic modulator or hologram, and detects scattered light.

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