ES396366A1 - Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas. - Google Patents
Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas.Info
- Publication number
- ES396366A1 ES396366A1 ES396366A ES396366A ES396366A1 ES 396366 A1 ES396366 A1 ES 396366A1 ES 396366 A ES396366 A ES 396366A ES 396366 A ES396366 A ES 396366A ES 396366 A1 ES396366 A1 ES 396366A1
- Authority
- ES
- Spain
- Prior art keywords
- duration
- pulses
- pulse
- gating means
- sensor
- 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.)
- Expired
Links
- 239000002245 particle Substances 0.000 title abstract 5
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)
- Investigating Or Analysing Biological Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8444070A | 1970-10-27 | 1970-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES396366A1 true ES396366A1 (es) | 1975-02-01 |
Family
ID=22184987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES396366A Expired ES396366A1 (es) | 1970-10-27 | 1971-10-25 | Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas. |
Country Status (6)
Country | Link |
---|---|
US (1) | US3701029A (es) |
AR (1) | AR196063A1 (es) |
BR (1) | BR7107084D0 (es) |
ES (1) | ES396366A1 (es) |
IL (1) | IL38000A (es) |
ZA (1) | ZA717123B (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3781674A (en) * | 1971-07-22 | 1973-12-25 | Coulter Electronics | Noise discriminating circuitry and method for electronic particle study apparatus |
DE2163722A1 (de) * | 1971-12-22 | 1973-06-28 | Licentia Gmbh | Verfahren fuer die impulshoehenbestimmung |
DE2207315A1 (de) * | 1972-02-17 | 1973-08-23 | Bodenseewerk Perkin Elmer Co | Peakdetektor |
US3790883A (en) * | 1972-05-09 | 1974-02-05 | Coulter Electronics | Particle study apparatus having improved particle resolution means |
US3963983A (en) * | 1973-04-18 | 1976-06-15 | Coulter Electronics, Inc. | Pulse amplitude discriminating circuit |
US3961271A (en) * | 1975-02-07 | 1976-06-01 | International Telephone And Telegraph Corporation | Pulse width and amplitude screening circuit |
US4030010A (en) * | 1975-02-13 | 1977-06-14 | Multiplex Communications, Inc. | Time delay control circuit |
US4016486A (en) * | 1976-02-19 | 1977-04-05 | The United States Of America As Represented By The Secretary Of The Army | Land mine detector with pulse slope, width and amplitude determination channels |
US4263508A (en) * | 1979-04-20 | 1981-04-21 | Research Corporation | Pulse edge measurement for determining particle dimensional characteristics |
US4527114A (en) * | 1982-02-25 | 1985-07-02 | Coulter Electronics, Inc. | Electrical slit scanning apparatus |
US6111398A (en) * | 1997-07-03 | 2000-08-29 | Coulter International Corp. | Method and apparatus for sensing and characterizing particles |
US6175227B1 (en) | 1997-07-03 | 2001-01-16 | Coulter International Corp. | Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2996624A (en) * | 1959-08-11 | 1961-08-15 | Victor R Mumma | Method for stretching photometer pulses for accurate measurement of pulse height |
US3502973A (en) * | 1966-05-23 | 1970-03-24 | Coulter Electronics | Collating apparatus for pairs of electrical pulses produced by 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 |
US3553593A (en) * | 1968-01-10 | 1971-01-05 | Westinghouse Electric Corp | Pulse width measuring circuit |
US3548206A (en) * | 1969-01-14 | 1970-12-15 | Royco Instr Inc | Noise rejection circuits for particle counters |
US3600688A (en) * | 1970-04-21 | 1971-08-17 | Bethlehem Steel Corp | Signal discriminator circuit |
-
1970
- 1970-10-27 US US84440A patent/US3701029A/en not_active Expired - Lifetime
-
1971
- 1971-10-22 BR BR7084/71A patent/BR7107084D0/pt unknown
- 1971-10-25 ZA ZA717123A patent/ZA717123B/xx unknown
- 1971-10-25 AR AR238652A patent/AR196063A1/es active
- 1971-10-25 IL IL38000A patent/IL38000A/xx unknown
- 1971-10-25 ES ES396366A patent/ES396366A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AR196063A1 (es) | 1973-11-30 |
IL38000A (en) | 1974-07-31 |
BR7107084D0 (pt) | 1973-04-10 |
US3701029A (en) | 1972-10-24 |
ZA717123B (en) | 1973-06-27 |
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