FR2284878B1 - - Google Patents
Info
- Publication number
- FR2284878B1 FR2284878B1 FR7528241A FR7528241A FR2284878B1 FR 2284878 B1 FR2284878 B1 FR 2284878B1 FR 7528241 A FR7528241 A FR 7528241A FR 7528241 A FR7528241 A FR 7528241A FR 2284878 B1 FR2284878 B1 FR 2284878B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
- G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
- G01N15/131—Details
- G01N15/132—Circuits
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/505,970 US3936666A (en) | 1974-09-16 | 1974-09-16 | Apparatus for measuring a particle size dividing one of the mass or particle number of a particulate system into predetermined fractions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2284878A1 FR2284878A1 (fr) | 1976-04-09 |
| FR2284878B1 true FR2284878B1 (cg-RX-API-DMAC10.html) | 1978-06-23 |
Family
ID=24012640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7528241A Granted FR2284878A1 (fr) | 1974-09-16 | 1975-09-15 | Dispositif pour mesurer une dimension de particule separant une masse ou un nombre de particules d'un systeme particulaire, en fractions predeterminees |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3936666A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS5156697A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2540752A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2284878A1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1527512A (cg-RX-API-DMAC10.html) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2741321C3 (de) * | 1977-09-14 | 1981-05-27 | Wibau Industrie und Verwaltung GmbH, 6466 Gründau | Verfahren zum Bestimmen der Teilchengrößenverteilung eines fallenden oder fließenden Gutstromes durch Aufnehmen und Auswerten von Videobildern |
| ES487980A1 (es) * | 1979-03-27 | 1980-10-01 | Contraves Ag | Dispositivo para un aparato analizador de particulas |
| JPS57179728A (en) * | 1981-04-30 | 1982-11-05 | Toa Medical Electronics Co Ltd | Apparatus for analyzing particle |
| CN111630365B (zh) * | 2018-02-27 | 2023-02-24 | 松下知识产权经营株式会社 | 粒子检测传感器 |
| CN110996082B (zh) * | 2019-12-17 | 2021-11-09 | 成都极米科技股份有限公司 | 投影调节方法、装置、投影仪及可读存储介质 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444464A (en) * | 1965-11-26 | 1969-05-13 | Coulter Electronics | Multiple aperture fittings for particle analyzing apparatus |
| US3557352A (en) * | 1967-11-01 | 1971-01-19 | Coulter Electronics | Apparatus and method for measuring a dividing particle size of a particulate system |
| US3626166A (en) * | 1970-04-15 | 1971-12-07 | Robert H Berg | Particle pulse analyzing apparatus employing linear amplification and logarithmic conversion |
| US3657725A (en) * | 1970-04-28 | 1972-04-18 | Gen Science Corp | Particle counting system |
| US3686486A (en) * | 1970-12-02 | 1972-08-22 | Coulter Electronics | Apparatus for obtaining statistical hematological indices and analyzing same and method |
| US3783391A (en) * | 1971-02-08 | 1974-01-01 | Coulter Electronics | Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method |
| US3742194A (en) * | 1971-05-03 | 1973-06-26 | Technican Instr Corp | Method and apparatus for providing direct real-time determination of a particulate population |
-
1974
- 1974-09-16 US US05/505,970 patent/US3936666A/en not_active Expired - Lifetime
-
1975
- 1975-09-12 DE DE19752540752 patent/DE2540752A1/de not_active Withdrawn
- 1975-09-13 JP JP50110528A patent/JPS5156697A/ja active Pending
- 1975-09-15 FR FR7528241A patent/FR2284878A1/fr active Granted
- 1975-09-15 GB GB37794/75A patent/GB1527512A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2540752A1 (de) | 1976-04-01 |
| US3936666A (en) | 1976-02-03 |
| JPS5156697A (en) | 1976-05-18 |
| FR2284878A1 (fr) | 1976-04-09 |
| GB1527512A (en) | 1978-10-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |