DE2235366C3 - Schaltung zur Unterdrückung von Signalen - Google Patents
Schaltung zur Unterdrückung von SignalenInfo
- Publication number
- DE2235366C3 DE2235366C3 DE2235366A DE2235366A DE2235366C3 DE 2235366 C3 DE2235366 C3 DE 2235366C3 DE 2235366 A DE2235366 A DE 2235366A DE 2235366 A DE2235366 A DE 2235366A DE 2235366 C3 DE2235366 C3 DE 2235366C3
- Authority
- DE
- Germany
- Prior art keywords
- particle
- circuit
- input
- signals
- counter
- 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 claims description 64
- 230000002452 interceptive effect Effects 0.000 description 9
- 230000001629 suppression Effects 0.000 description 9
- 239000000725 suspension Substances 0.000 description 7
- 238000011835 investigation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000013060 biological fluid Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16527671A | 1971-07-22 | 1971-07-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2235366A1 DE2235366A1 (de) | 1973-02-01 |
| DE2235366B2 DE2235366B2 (de) | 1978-01-19 |
| DE2235366C3 true DE2235366C3 (de) | 1978-09-21 |
Family
ID=22598222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2235366A Expired DE2235366C3 (de) | 1971-07-22 | 1972-07-19 | Schaltung zur Unterdrückung von Signalen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3781674A (OSRAM) |
| JP (1) | JPS539559B1 (OSRAM) |
| CA (1) | CA965843A (OSRAM) |
| DE (1) | DE2235366C3 (OSRAM) |
| FR (1) | FR2146819A5 (OSRAM) |
| GB (1) | GB1394182A (OSRAM) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263508A (en) * | 1979-04-20 | 1981-04-21 | Research Corporation | Pulse edge measurement for determining particle dimensional characteristics |
| US4633169A (en) * | 1983-07-08 | 1986-12-30 | Kontron Holding Ag | Blood particle analyzer |
| GB8321242D0 (en) * | 1983-08-05 | 1983-09-07 | Orbec Ltd | Test apparatus |
| EP0289200B2 (en) * | 1987-04-27 | 1998-07-22 | Fritz K. Preikschat | Apparatus and method for particle analysis |
| US5426501A (en) * | 1993-01-06 | 1995-06-20 | Laser Sensor Technology, Inc. | Apparatus and method for particle analysis |
| 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 |
| US6111398A (en) * | 1997-07-03 | 2000-08-29 | Coulter International Corp. | Method and apparatus for sensing and characterizing particles |
| CN101091365A (zh) * | 2004-12-28 | 2007-12-19 | 松下电器产业株式会社 | 数据接收装置和数据接收方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259842A (en) * | 1959-08-19 | 1966-07-05 | Coulter Electronics | Particle analyzing device |
| US3271671A (en) * | 1961-04-06 | 1966-09-06 | Coulter Electronics | Particle analyzing device |
| US3502973A (en) * | 1966-05-23 | 1970-03-24 | Coulter Electronics | Collating apparatus for pairs of electrical pulses produced by particle analyzing apparatus |
| US3517321A (en) * | 1967-02-17 | 1970-06-23 | Burroughs Corp | Rise time discriminator |
| US3594726A (en) * | 1968-09-30 | 1971-07-20 | Nester & Faust Mfg Corp | Programmed slope and amplitude responsive system |
| US3548206A (en) * | 1969-01-14 | 1970-12-15 | Royco Instr Inc | Noise rejection circuits for particle counters |
| US3617904A (en) * | 1969-06-05 | 1971-11-02 | Digitronics Corp | Noise insensitive peak detector |
| US3599016A (en) * | 1969-07-22 | 1971-08-10 | Gen Electric | Automatic reset circuit |
| US3701029A (en) * | 1970-10-27 | 1972-10-24 | Coulter Electronics | Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method |
-
1971
- 1971-07-22 US US00165276A patent/US3781674A/en not_active Expired - Lifetime
-
1972
- 1972-07-19 GB GB3382472A patent/GB1394182A/en not_active Expired
- 1972-07-19 FR FR7225975A patent/FR2146819A5/fr not_active Expired
- 1972-07-19 CA CA147,502A patent/CA965843A/en not_active Expired
- 1972-07-19 DE DE2235366A patent/DE2235366C3/de not_active Expired
- 1972-07-22 JP JP7305272A patent/JPS539559B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2235366B2 (de) | 1978-01-19 |
| JPS539559B1 (OSRAM) | 1978-04-06 |
| GB1394182A (en) | 1975-05-14 |
| US3781674A (en) | 1973-12-25 |
| CA965843A (en) | 1975-04-08 |
| DE2235366A1 (de) | 1973-02-01 |
| FR2146819A5 (OSRAM) | 1973-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| EHJ | Ceased/non-payment of the annual fee |