DE2219973A1 - Verfahren und Vorrichtung zur Messung der Teilchenkonzentration in Fluidsuspensionen - Google Patents
Verfahren und Vorrichtung zur Messung der Teilchenkonzentration in FluidsuspensionenInfo
- Publication number
- DE2219973A1 DE2219973A1 DE19722219973 DE2219973A DE2219973A1 DE 2219973 A1 DE2219973 A1 DE 2219973A1 DE 19722219973 DE19722219973 DE 19722219973 DE 2219973 A DE2219973 A DE 2219973A DE 2219973 A1 DE2219973 A1 DE 2219973A1
- Authority
- DE
- Germany
- Prior art keywords
- pulse
- circuit
- signal
- particle
- amplitude
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
-
- 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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Computer Hardware Design (AREA)
- Dispersion Chemistry (AREA)
- Software Systems (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Nonlinear Science (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13809671A | 1971-04-28 | 1971-04-28 | |
| US21537472A | 1972-01-04 | 1972-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2219973A1 true DE2219973A1 (de) | 1972-11-09 |
Family
ID=26835860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722219973 Ceased DE2219973A1 (de) | 1971-04-28 | 1972-04-24 | Verfahren und Vorrichtung zur Messung der Teilchenkonzentration in Fluidsuspensionen |
Country Status (14)
-
1972
- 1972-01-01 AR AR241630A patent/AR204900A1/es active
- 1972-04-24 DE DE19722219973 patent/DE2219973A1/de not_active Ceased
- 1972-04-24 BE BE782583A patent/BE782583A/nl unknown
- 1972-04-24 IT IT49819/72A patent/IT960260B/it active
- 1972-04-24 FR FR7214497A patent/FR2141058A5/fr not_active Expired
- 1972-04-24 GB GB1889972A patent/GB1385363A/en not_active Expired
- 1972-04-24 JP JP4119972A patent/JPS535832B1/ja active Pending
- 1972-04-24 ES ES402053A patent/ES402053A1/es not_active Expired
- 1972-04-24 CH CH601272A patent/CH565368A5/xx not_active IP Right Cessation
- 1972-04-24 NL NL7205490A patent/NL7205490A/xx unknown
- 1972-04-24 IL IL39276A patent/IL39276A/xx unknown
- 1972-04-24 SE SE7205358A patent/SE376081B/xx unknown
- 1972-04-24 AU AU41517/72A patent/AU460261B2/en not_active Expired
- 1972-04-28 CA CA140,858A patent/CA952193A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS535832B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-03-02 |
| IL39276A0 (en) | 1972-06-28 |
| CH565368A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-08-15 |
| GB1385363A (en) | 1975-02-26 |
| ES402053A1 (es) | 1975-11-16 |
| AR204900A1 (es) | 1976-03-19 |
| SE376081B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-05-05 |
| AU4151772A (en) | 1973-11-01 |
| CA952193A (en) | 1974-07-30 |
| BE782583A (nl) | 1972-10-24 |
| IT960260B (it) | 1973-11-20 |
| NL7205490A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-10-31 |
| AU460261B2 (en) | 1975-04-24 |
| FR2141058A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-01-19 |
| IL39276A (en) | 1975-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8131 | Rejection | ||
| 8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 2265704 Format of ref document f/p: P |
|
| Q171 | Divided out to: |
Ref country code: DE Ref document number: 2265704 |