CH676051A5 - - Google Patents

Download PDF

Info

Publication number
CH676051A5
CH676051A5 CH53088A CH53088A CH676051A5 CH 676051 A5 CH676051 A5 CH 676051A5 CH 53088 A CH53088 A CH 53088A CH 53088 A CH53088 A CH 53088A CH 676051 A5 CH676051 A5 CH 676051A5
Authority
CH
Switzerland
Prior art keywords
metal detector
signal
detector according
magnetic field
measuring part
Prior art date
Application number
CH53088A
Other languages
German (de)
English (en)
Inventor
Dieter Alex Rufer
Walter Egger
Original Assignee
Egco 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.)
Filing date
Publication date
Application filed by Egco Ag filed Critical Egco Ag
Priority to CH53088A priority Critical patent/CH676051A5/de
Priority to EP19890901835 priority patent/EP0360845A1/de
Priority to PCT/CH1989/000022 priority patent/WO1989007775A1/de
Publication of CH676051A5 publication Critical patent/CH676051A5/de

Links

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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
CH53088A 1988-02-12 1988-02-12 CH676051A5 (no)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH53088A CH676051A5 (no) 1988-02-12 1988-02-12
EP19890901835 EP0360845A1 (de) 1988-02-12 1989-02-09 Metallsuchgerät
PCT/CH1989/000022 WO1989007775A1 (en) 1988-02-12 1989-02-09 Metal detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH53088A CH676051A5 (no) 1988-02-12 1988-02-12

Publications (1)

Publication Number Publication Date
CH676051A5 true CH676051A5 (no) 1990-11-30

Family

ID=4189118

Family Applications (1)

Application Number Title Priority Date Filing Date
CH53088A CH676051A5 (no) 1988-02-12 1988-02-12

Country Status (3)

Country Link
EP (1) EP0360845A1 (no)
CH (1) CH676051A5 (no)
WO (1) WO1989007775A1 (no)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837344A2 (de) * 1996-10-16 1998-04-22 Firma Ing. Klaus Ebinger Verfahren und Vorrichtung zur Detektion eines metallischen Objektes
EP0952465A2 (de) * 1998-04-22 1999-10-27 HILTI Aktiengesellschaft Markiervorrichtung
DE102008058457A1 (de) * 2008-11-21 2010-06-02 Hilti Aktiengesellschaft Verfahren und handgeführter Sensor mit adaptiver Detektionsschwelle zur Detektion von in Bauwerkuntergründen eingebetteten Fremdobjekten
EP1722251A3 (de) * 2005-05-10 2013-04-03 HILTI Aktiengesellschaft Handgeführten, scannender Untergrunddetektor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8907090D0 (en) * 1989-03-29 1989-05-10 British Gas Plc Vehicle with plastics suspension
GB2257528A (en) * 1991-06-18 1993-01-13 Colebrand Ltd Locating the position of ferrous reinforcement in a structure
EP0529181A3 (en) * 1991-08-28 1993-05-26 Nishimatsu Construction Co., Ltd. Method and system for searching reinforcing steel in concrete
DE4200518A1 (de) * 1992-01-11 1993-07-15 Bosch Gmbh Robert Metallsuchdetektor
FR2715477B1 (fr) * 1994-01-21 1996-04-12 Crouzet Automatismes Détecteur de proximité inductif redondant.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE508347C (de) * 1930-09-27 Siegmund Deutsch Vorrichtung zum Aufsuchen und Anzeigen der Eiseneinlagen in fertigen Eisenbetonbauwerken
US2874349A (en) * 1955-06-02 1959-02-17 Henry N Staats Apparatus for detecting and measuring the depth of reinforcing rods
US3820010A (en) * 1971-03-11 1974-06-25 G Sudmeier Subsurface continuous-wave exploration system
FR2547659A1 (fr) * 1983-06-20 1984-12-21 Clausin Jacques Detecteurs d'objets metalliques indiquant : la distance, la taille et la matiere
US4500749A (en) * 1982-12-14 1985-02-19 Behrokh Khoshnevis Incremental digitizer for encoding geometrical forms
GB2166872A (en) * 1984-08-16 1986-05-14 Wardell Transport Limited Assessing condition of hidden elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE508347C (de) * 1930-09-27 Siegmund Deutsch Vorrichtung zum Aufsuchen und Anzeigen der Eiseneinlagen in fertigen Eisenbetonbauwerken
US2874349A (en) * 1955-06-02 1959-02-17 Henry N Staats Apparatus for detecting and measuring the depth of reinforcing rods
US3820010A (en) * 1971-03-11 1974-06-25 G Sudmeier Subsurface continuous-wave exploration system
US4500749A (en) * 1982-12-14 1985-02-19 Behrokh Khoshnevis Incremental digitizer for encoding geometrical forms
FR2547659A1 (fr) * 1983-06-20 1984-12-21 Clausin Jacques Detecteurs d'objets metalliques indiquant : la distance, la taille et la matiere
GB2166872A (en) * 1984-08-16 1986-05-14 Wardell Transport Limited Assessing condition of hidden elements

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837344A2 (de) * 1996-10-16 1998-04-22 Firma Ing. Klaus Ebinger Verfahren und Vorrichtung zur Detektion eines metallischen Objektes
EP0837344A3 (de) * 1996-10-16 2000-12-20 Firma Ing. Klaus Ebinger Verfahren und Vorrichtung zur Detektion eines metallischen Objektes
EP0952465A2 (de) * 1998-04-22 1999-10-27 HILTI Aktiengesellschaft Markiervorrichtung
JPH11337337A (ja) * 1998-04-22 1999-12-10 Hilti Ag マ―キング装置
EP0952465A3 (de) * 1998-04-22 2002-03-20 HILTI Aktiengesellschaft Markiervorrichtung
EP1722251A3 (de) * 2005-05-10 2013-04-03 HILTI Aktiengesellschaft Handgeführten, scannender Untergrunddetektor
DE102008058457A1 (de) * 2008-11-21 2010-06-02 Hilti Aktiengesellschaft Verfahren und handgeführter Sensor mit adaptiver Detektionsschwelle zur Detektion von in Bauwerkuntergründen eingebetteten Fremdobjekten
US8387472B2 (en) 2008-11-21 2013-03-05 Hilti Aktiengesellschaft Method and hand-operated sensor with adaptive detection threshold for the detection of foreign objects embedded in building structure subgrades

Also Published As

Publication number Publication date
WO1989007775A1 (en) 1989-08-24
EP0360845A1 (de) 1990-04-04

Similar Documents

Publication Publication Date Title
DE3743180C2 (no)
EP1739432A1 (de) Testband und Analysesystem
DE202005011814U1 (de) Elektronisches Maßband und dieses umfassende Längenmesseinrichtung
DE3245914C1 (de) Messeinrichtung
CH676051A5 (no)
DE102004012072A1 (de) Ortungsgerät
DE3221336A1 (de) Optische messanordnung
EP0551606A2 (de) Metallsuchdetektor
DE2919419C2 (de) Verfahren zum Markieren, Auswerten oder Ausmessen von Schirmbildern und Gerät zur Durchführung dieses Verfahrens
DE2054505B2 (de) Vorrichtung zur fortlaufenden messung der haerte einer probe
DE3707190C2 (no)
EP1661515A2 (de) Vorrichtung zur elektronischen Erfassung von Massen, insbesondere von Körpermassen eines Patienten
DE10123539B4 (de) Magnetische Längenmessvorrichtung
DE3129733A1 (de) Einrichtung fuer magnetometer zum kompensieren des magnetischen erdfeldes
DE3245155C1 (de) Vorrichtung zum Ermitteln des Verlaufes von Bewehrungseisen in Stahlbetonkonstruktionen
EP0136520B1 (de) Einrichtung zum Aufnehmen densitometrischer Werte von einem Kontrollstreifen
DE3235535A1 (de) Metallsuchgeraet
DE102004055650B4 (de) Vorrichtung zur elektronischen Erfassung von Maßen, insbesondere von Körpermaßen eines Patienten
WO2005111535A1 (de) Verfahren und vorrichtung zum berührungslosen erfassen von werkstücken
DE20310574U1 (de) Vorrichtung zur elektronischen Erfassung von Maßen, insbesondere von Körpermaßen von Patienten
DE2718373A1 (de) Vorrichtung zum vermessen der betonbewehrung
DE3021274A1 (de) Optische abtasteinrichtung
DE4334883C2 (de) Vorrichtung zur Überwachung von Schreib- oder Zeichengeräten, insbesondere in Plottern, Registriergeräten oder ähnlichen automatisch arbeitenden Systemen
DE3932395A1 (de) Verfahren zur eichung von stroemungsmessern zur erfassung zeitlich veraenderter luftstroeme sowie geraet zur durchfuehrung dieser verfahren
WO1982002822A1 (en) Device for measuring and recording the blood pressure

Legal Events

Date Code Title Description
PL Patent ceased