CA963957A - Method and apparatus for compensation of the temperature-dependency of the conductivity of a fluid with suspended particles - Google Patents

Method and apparatus for compensation of the temperature-dependency of the conductivity of a fluid with suspended particles

Info

Publication number: CA963957A
Authority: CA; Canada
Prior art keywords: dependency; compensation; conductivity; fluid; temperature
Prior art date: 1972-06-30
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

Application number

CA173,128A

Other languages

English (en)

Other versions

CA173128S (en

Inventor

Hermann Gahwiler

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Rheinmetall Air Defence AG

Original Assignee

Oerlikon Contraves AG

Priority date (The priority date 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 date listed.)

1972-06-30

Filing date

1973-06-04

Publication date

1975-03-04

1973-06-04 Application filed by Oerlikon Contraves AG filed Critical Oerlikon Contraves AG

1975-03-04 Application granted granted Critical

1975-03-04 Publication of CA963957A publication Critical patent/CA963957A/en

Status Expired legal-status Critical Current

Links

239000012530 fluid Substances 0.000 title 1
239000002245 particle Substances 0.000 title 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)
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)
Measurement Of Resistance Or Impedance (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Investigating Or Analysing Biological Materials (AREA)

CA173,128A 1972-06-30 1973-06-04 Method and apparatus for compensation of the temperature-dependency of the conductivity of a fluid with suspended particles Expired CA963957A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH983072		1972-06-30

Publications (1)

Publication Number	Publication Date
CA963957A true CA963957A (en)	1975-03-04

Family

ID=4356105

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA173,128A Expired CA963957A (en)	1972-06-30	1973-06-04	Method and apparatus for compensation of the temperature-dependency of the conductivity of a fluid with suspended particles

Country Status (8)

Country	Link
US (1)	US3852666A (it)
JP (1)	JPS4965262A (it)
CA (1)	CA963957A (it)
CH (1)	CH546437A (it)
DE (1)	DE2304682A1 (it)
FR (1)	FR2191740A5 (it)
GB (1)	GB1421491A (it)
IT (1)	IT990787B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7312147A (nl) *	1973-09-04	1975-03-06	Philips Nv	Temperatuurkorrektieschakeling.
CH614781A5 (it) *	1977-06-27	1979-12-14	Contraves Ag
CH618514A5 (it)	1977-08-25	1980-07-31	Contraves Ag
AT356946B (de) *	1978-08-21	1980-06-10	List Hans	Schaltungsanordnung fuer eine elektrochemische messeinrichtung
DE2914266C2 (de) *	1979-04-09	1983-04-21	Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen	Photoelektrische Einrichtung zum Erzeugen eines einer Nutzlichtänderung entsprechenden elektrischen Ausgangssignales
US4791355A (en) *	1986-10-21	1988-12-13	Coulter Electronics Inc.	Particle analyzer for measuring the resistance and reactance of a particle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA864075A (en) *		1971-02-16	L. Epstein Sheldon	Particle studying apparatus
US3358223A (en) *	1955-10-14	1967-12-12	Mawdsley S Ltd	Concentration meter
US3502974A (en) *	1966-05-23	1970-03-24	Coulter Electronics	Signal modulated apparatus for generating and detecting resistive and reactive changes in a modulated current path for particle classification and analysis

1972
- 1972-06-30 CH CH983072A patent/CH546437A/xx not_active IP Right Cessation
1973
- 1973-01-31 DE DE2304682A patent/DE2304682A1/de active Pending
- 1973-02-27 FR FR7306915A patent/FR2191740A5/fr not_active Expired
- 1973-05-18 GB GB2376673A patent/GB1421491A/en not_active Expired
- 1973-05-21 US US00362011A patent/US3852666A/en not_active Expired - Lifetime
- 1973-06-04 CA CA173,128A patent/CA963957A/en not_active Expired
- 1973-06-08 JP JP48064003A patent/JPS4965262A/ja active Pending
- 1973-06-28 IT IT25991/73A patent/IT990787B/it active

Also Published As

Publication number	Publication date
US3852666A (en)	1974-12-03
JPS4965262A (it)	1974-06-25
FR2191740A5 (it)	1974-02-01
DE2304682A1 (de)	1974-01-17
IT990787B (it)	1975-07-10
GB1421491A (en)	1976-01-21
CH546437A (de)	1974-02-28

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