SU1642325A1 - Device for determining the size of fine particles - Google Patents
Device for determining the size of fine particles Download PDFInfo
- Publication number
- SU1642325A1 SU1642325A1 SU894633052A SU4633052A SU1642325A1 SU 1642325 A1 SU1642325 A1 SU 1642325A1 SU 894633052 A SU894633052 A SU 894633052A SU 4633052 A SU4633052 A SU 4633052A SU 1642325 A1 SU1642325 A1 SU 1642325A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- output
- input
- peak detector
- subtraction circuit
- shot
- Prior art date
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Изобретение относитс к измерительной технике и может быть использовано в электронной, химической и других област х промышленности. Цель изобретени - повышение чувствительности и упрощение конструкции устройства . Устройство позвол ет устранить искажени в спектрах размеров, обусловленные прохождением- частицы вблизи краев рабочей зоны. Устройство содержит оптически св занные осветитель 1, формирующий освещенную зону регистрации , канал 2 транспортировки дисперсной среды, объектив 3, диафрагму 4 в виде двух пр моугольных щелей различных размеров, расположенных перпендикул рно направлению движени изображений микрочастиц, причем большее отверстие расположено перед меньшим по ходу движени изображений микрочастиц , фотоприемник 5, усилитель 6, аналоговый коммутатор 7, одновибратор 8, пиковый детектор 9, схему 10 вычитани , схему 11 формировани импульса запуска и амплитудный анализатор 12 импульсов. 2 ил. us V сThis invention relates to a measurement technique and can be used in the electronic, chemical, and other industries. The purpose of the invention is to increase the sensitivity and simplify the design of the device. The device allows to eliminate the distortions in the size spectra due to the passage of particles near the edges of the working area. The device contains optically coupled illuminator 1, which forms the illuminated registration area, dispersed medium transport channel 2, lens 3, and diaphragm 4 in the form of two rectangular slits of various sizes arranged perpendicular to the direction of motion of the microparticle images, with a larger opening in front of the smaller one. microparticle images, photodetector 5, amplifier 6, analog switch 7, one-shot 8, peak detector 9, subtraction circuit 10, trigger pulse-shaping circuit 11 and amplitude A difficult analyzer of 12 pulses. 2 Il. us v with
Description
Фиг. 2FIG. 2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894633052A SU1642325A1 (en) | 1989-01-06 | 1989-01-06 | Device for determining the size of fine particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894633052A SU1642325A1 (en) | 1989-01-06 | 1989-01-06 | Device for determining the size of fine particles |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1642325A1 true SU1642325A1 (en) | 1991-04-15 |
Family
ID=21420832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU894633052A SU1642325A1 (en) | 1989-01-06 | 1989-01-06 | Device for determining the size of fine particles |
Country Status (1)
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SU (1) | SU1642325A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4139899A1 (en) * | 1991-12-04 | 1993-06-09 | Hoffmann, Alfred, Dr., 9200 Freiberg, De | Measuring turbidity and mass flow of suspended particles in liquids simultaneously - regulating diode emission power, averaging turbidity over repeated cycles and measuring transition time of flow rate |
RU2768539C1 (en) * | 2018-03-30 | 2022-03-24 | ДжФЕ СТИЛ КОРПОРЕЙШН | Device for measuring the relative content of fine particles, a system for measuring the relative content of fine particles and a method for performing an operation for a blast furnace |
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1989
- 1989-01-06 SU SU894633052A patent/SU1642325A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 507807, кл. G 01 N 15/02, 1974. Степанищев О.В. и др. Повышение точности и чувствительности ультрамикроскопического метода. - Коллоидный журнал, 1985, т. 47, № 2, с. 407-410. * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4139899A1 (en) * | 1991-12-04 | 1993-06-09 | Hoffmann, Alfred, Dr., 9200 Freiberg, De | Measuring turbidity and mass flow of suspended particles in liquids simultaneously - regulating diode emission power, averaging turbidity over repeated cycles and measuring transition time of flow rate |
RU2768539C1 (en) * | 2018-03-30 | 2022-03-24 | ДжФЕ СТИЛ КОРПОРЕЙШН | Device for measuring the relative content of fine particles, a system for measuring the relative content of fine particles and a method for performing an operation for a blast furnace |
US11555781B2 (en) | 2018-03-30 | 2023-01-17 | Jfe Steel Corporation | Fine ratio measuring device, fine ratio measuring system, and blast furnace operating method |
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