LU72552A1 - - Google Patents

Info

Publication number: LU72552A1
Authority: LU; Luxembourg

Application number

LU72552A

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.)

1974-05-28

Filing date

1975-05-22

Publication date

1975-10-08

1975-05-22 Application filed filed Critical

1975-10-08 Publication of LU72552A1 publication Critical patent/LU72552A1/xx

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
- G01N27/906—Compensating for velocity

Landscapes

Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Remote Sensing (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Electrochemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Pathology (AREA)
Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Electromagnetism (AREA)
Environmental & Geological Engineering (AREA)
Geology (AREA)
General Life Sciences & Earth Sciences (AREA)
Geophysics (AREA)
Geophysics And Detection Of Objects (AREA)
Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

LU72552A 1974-05-28 1975-05-22 LU72552A1 (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/473,643 US3949293A (en)	1974-05-28	1974-05-28	Apparatus and method for detecting a moving metal mass including means to discriminate signals having a particular period

Publications (1)

Publication Number	Publication Date
LU72552A1 true LU72552A1 (nl)	1975-10-08

Family

ID=23880398

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
LU72552A LU72552A1 (nl)	1974-05-28	1975-05-22

Country Status (19)

Country	Link
US (1)	US3949293A (nl)
JP (1)	JPS517954A (nl)
AR (1)	AR204664A1 (nl)
AU (1)	AU498275B2 (nl)
BE (1)	BE829255A (nl)
BR (1)	BR7503216A (nl)
CA (1)	CA1060970A (nl)
DE (1)	DE2523677A1 (nl)
DK (1)	DK233975A (nl)
ES (1)	ES437399A1 (nl)
FR (1)	FR2273288A1 (nl)
GB (1)	GB1505186A (nl)
IT (1)	IT1038533B (nl)
LU (1)	LU72552A1 (nl)
NL (1)	NL7506305A (nl)
NO (1)	NO751865L (nl)
SE (1)	SE401954B (nl)
TR (1)	TR19739A (nl)
ZA (1)	ZA752757B (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2412081A1 (fr) *	1977-12-19	1979-07-13	Fadico	Dispositif de detection de la presence d'une piece mecanique, muni d'organes assurant la securite du fonctionnement vis-a-vis de defauts d'isolement dans le circuit du capteur
US4193028A (en) *	1978-05-05	1980-03-11	Honeywell Inc.	Eddy current instrumentation circuitry for distinguishing flaw signals from spurious noise signals
GB2136580B (en) *	1983-03-16	1987-11-18	Thyssen Industrie	Method and apparatus for determining the distance from a conductor
JPH0518715Y2 (nl) *	1987-12-15	1993-05-18

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2577827A (en) *	1945-10-30	1951-12-11	Charles B Tompkins	Pulse recognition device
US2648766A (en) *	1950-04-19	1953-08-11	Rca Corp	Pulse width discriminator
US3065412A (en) *	1958-12-23	1962-11-20	Union Carbide Corp	Metal detector
US3523253A (en) *	1966-04-15	1970-08-04	Electronic Memories & Magnetic	Coupling network
US3609563A (en) *	1968-11-12	1971-09-28	Coditron Corp	Frequency detector
US3706027A (en) *	1971-07-13	1972-12-12	Karl R Grice Jr	Materials counting system utilizing permanent magnets and their associated fields

1974
- 1974-05-28 US US05/473,643 patent/US3949293A/en not_active Expired - Lifetime
1975
- 1975-01-01 AR AR258711A patent/AR204664A1/es active
- 1975-04-29 ZA ZA00752757A patent/ZA752757B/xx unknown
- 1975-04-29 CA CA225,996A patent/CA1060970A/en not_active Expired
- 1975-05-02 GB GB18412/75A patent/GB1505186A/en not_active Expired
- 1975-05-02 AU AU80771/75A patent/AU498275B2/en not_active Expired
- 1975-05-02 ES ES437399A patent/ES437399A1/es not_active Expired
- 1975-05-15 FR FR7515240A patent/FR2273288A1/fr not_active Withdrawn
- 1975-05-16 TR TR19739A patent/TR19739A/xx unknown
- 1975-05-20 BE BE156503A patent/BE829255A/xx unknown
- 1975-05-22 LU LU72552A patent/LU72552A1/xx unknown
- 1975-05-22 BR BR4118/75D patent/BR7503216A/pt unknown
- 1975-05-23 SE SE7505919A patent/SE401954B/xx unknown
- 1975-05-26 DE DE19752523677 patent/DE2523677A1/de not_active Withdrawn
- 1975-05-27 IT IT23763/75A patent/IT1038533B/it active
- 1975-05-27 NO NO751865A patent/NO751865L/no unknown
- 1975-05-27 DK DK233975A patent/DK233975A/da unknown
- 1975-05-27 JP JP50063400A patent/JPS517954A/ja active Pending
- 1975-05-28 NL NL7506305A patent/NL7506305A/nl not_active Application Discontinuation

Also Published As

Publication number	Publication date
GB1505186A (en)	1978-03-30
AU498275B2 (en)	1979-03-01
BE829255A (fr)	1975-09-15
FR2273288A1 (nl)	1975-12-26
NL7506305A (nl)	1975-12-02
DK233975A (da)	1975-11-29
BR7503216A (pt)	1976-04-20
ES437399A1 (es)	1977-01-16
CA1060970A (en)	1979-08-21
NO751865L (nl)	1975-12-01
TR19739A (tr)	1979-10-25
ZA752757B (en)	1976-04-28
AU8077175A (en)	1976-11-04
SE7505919L (sv)	1975-12-01
US3949293A (en)	1976-04-06
IT1038533B (it)	1979-11-30
DE2523677A1 (de)	1975-12-11
SE401954B (sv)	1978-06-05
JPS517954A (nl)	1976-01-22
AR204664A1 (es)	1976-02-20

Publication	Publication Date	Title
FI751257A (nl)	1975-11-03
FR2283425B1 (nl)	1979-09-07
FR2262379A1 (nl)	1975-09-19
FR2268362B1 (nl)	1983-04-01
FR2264768A1 (nl)	1975-10-17
FR2277289B2 (nl)	1976-12-24
JPS517954A (nl)	1976-01-22
FR2269266A1 (nl)	1975-11-21
FR2266127B1 (nl)	1976-10-08
BR7403145A (nl)	1975-12-23
BG22971A1 (nl)	1977-05-20
BG22051A1 (nl)	1976-11-25
AU481723A (nl)	1975-09-25
DD116338A1 (nl)	1975-11-12
DD115645A5 (nl)	1975-10-12
CH741475A4 (nl)	1977-01-31
CH592008A5 (nl)	1977-10-14
CH591174A5 (nl)	1977-09-15
CH583418A5 (nl)	1976-12-31
CH577876A5 (nl)	1976-07-30
AU481877A (nl)	1975-10-02
BG26066A1 (nl)	1979-02-15
BG25832A1 (nl)	1979-01-12
BG21514A1 (nl)	1976-07-20
BG22868A1 (nl)	1977-05-20