ES421626A1 - Procedimiento para la medicion de propiedades de materia- les, especialmente su dureza, por un metodo de contacto e impedancia. - Google Patents

Procedimiento para la medicion de propiedades de materia- les, especialmente su dureza, por un metodo de contacto e impedancia.

Info

Publication number
ES421626A1
ES421626A1 ES421626A ES421626A ES421626A1 ES 421626 A1 ES421626 A1 ES 421626A1 ES 421626 A ES421626 A ES 421626A ES 421626 A ES421626 A ES 421626A ES 421626 A1 ES421626 A1 ES 421626A1
Authority
ES
Spain
Prior art keywords
probe
workpiece
difference
measuring circuit
resonant frequency
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
Application number
ES421626A
Other languages
English (en)
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.)
Krautkraemer GmbH and Co
Krautkraemer GmbH
Original Assignee
Krautkraemer GmbH and Co
Krautkraemer GmbH
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 Krautkraemer GmbH and Co, Krautkraemer GmbH filed Critical Krautkraemer GmbH and Co
Publication of ES421626A1 publication Critical patent/ES421626A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/405—Investigating hardness or rebound hardness by determining the vibration frequency of a sensing element in contact with the specimen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
ES421626A 1973-11-15 1973-12-19 Procedimiento para la medicion de propiedades de materia- les, especialmente su dureza, por un metodo de contacto e impedancia. Expired ES421626A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2357033A DE2357033C2 (de) 1973-11-15 1973-11-15 Vorrichtung zur Messung von Werkstoffeigenschaften, insbesondere einer Härte, nach einer Kontakt-Impedanz-Methode

Publications (1)

Publication Number Publication Date
ES421626A1 true ES421626A1 (es) 1976-07-01

Family

ID=5898178

Family Applications (1)

Application Number Title Priority Date Filing Date
ES421626A Expired ES421626A1 (es) 1973-11-15 1973-12-19 Procedimiento para la medicion de propiedades de materia- les, especialmente su dureza, por un metodo de contacto e impedancia.

Country Status (7)

Country Link
US (1) US3955404A (es)
JP (1) JPS5751608B2 (es)
DE (1) DE2357033C2 (es)
ES (1) ES421626A1 (es)
FR (1) FR2251822B1 (es)
GB (1) GB1481698A (es)
IT (1) IT1015762B (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1506164A (en) * 1974-07-09 1978-04-05 Mullard Ltd Ultrasonic bonding apparatus
CH628137A5 (fr) * 1977-09-27 1982-02-15 Meseltron Sa Procede de mesure a l'aide d'une tete de mesure d'une machine a mesurer et tete de mesure pour la mise en oeuvre de ce procede.
US4294121A (en) * 1978-06-06 1981-10-13 Inoue-Japax Research Incorporated Position measuring system
FR2435029A1 (fr) * 1978-08-31 1980-03-28 Oreal Procede pour mesurer au moins une caracteristique mecanique d'un materiau elastique et appareil correspondant
US4455863A (en) * 1982-03-29 1984-06-26 Consolidated Natural Gas Service Company Sonic detection of gas leaks in underground pipes
DE3329690C1 (de) * 1983-08-17 1985-04-11 Krautkrämer GmbH, 5000 Köln Verfahren und Schaltungsvorrichtung zur Haertemessung nach der Kontakt-Impedanz-Methode
JPS6078320U (ja) * 1983-11-04 1985-05-31 アジナ技研株式会社 球体整列移動装置
EP0181131A3 (en) * 1984-11-01 1987-05-20 Kent Scientific and Industrial Projects Limited Apparatus for detecting the resonant frequency of a bone
DE3504535C1 (de) * 1985-02-11 1986-07-10 Krautkrämer GmbH, 5000 Köln Verfahren zur Ermittlung der Haerte fester Koerper
US4702110A (en) * 1985-06-20 1987-10-27 J. A. Green Company Method and apparatus for measuring metal hardness utilizing longitudinal and transverse ultrasonic wave time-of-flight
DE3720625A1 (de) * 1987-06-23 1989-01-05 Krautkraemer Gmbh Haertepruefgeraet zur haertepruefung unter last
DE3843588C2 (de) * 1988-12-23 1998-04-09 Krautkraemer Gmbh Härteprüfgerät zur Härteprüfung unter Last und Verfahren zum Justieren eines derartigen Härteprüfgerätes
DE3934578C2 (de) * 1989-10-17 2000-02-10 Krautkraemer Gmbh Verfahren zur Härteprüfung von Serienteilen mit geringer mechanischer Reaktanz
CH680094A5 (es) * 1990-04-06 1992-06-15 Fischer Ag Georg
US5205173A (en) * 1991-06-21 1993-04-27 Palmer Environmental Services Method and apparatus for detecting leaks in pipelines using cross-correlation techniques
US5359879A (en) * 1992-11-04 1994-11-01 Martin Marietta Energy Systems, Inc. Scanning micro-sclerometer
US5999887A (en) * 1997-02-26 1999-12-07 Massachusetts Institute Of Technology Method and apparatus for determination of mechanical properties of functionally-graded materials
US6641893B1 (en) 1997-03-14 2003-11-04 Massachusetts Institute Of Technology Functionally-graded materials and the engineering of tribological resistance at surfaces
SG86332A1 (en) * 1998-09-19 2002-02-19 Univ Singapore In-situ non destructive elastic recovery tester
DE102012100958A1 (de) * 2012-02-06 2013-08-08 Herrmann Ultraschalltechnik Gmbh & Co. Kg Verfahren zur Charakterisierung von Kunststoffeigenschaften sowie Prüfapparat zur Durchführung des Verfahrens
DE102013109504B4 (de) * 2013-08-30 2016-07-14 Technische Universität Wien Mechanisches Prüfverfahren für Komponenten der Elektronik

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153338A (en) * 1961-11-22 1964-10-20 Kleesattel Claus Resonant sensing devices
US3307393A (en) * 1963-12-23 1967-03-07 Ingersoll Rand Co Stress measuring device
US3308476A (en) * 1964-01-21 1967-03-07 Kleesattel Claus Resonant sensing devices
US3302454A (en) * 1964-10-08 1967-02-07 Kleesattel Claus Resonant sensing devices
US3323352A (en) * 1965-01-04 1967-06-06 Branson Instr Control circuit for resonant sensing device
US3365937A (en) * 1965-01-26 1968-01-30 Branson Instr Resonant sensing device
US3472063A (en) * 1967-04-17 1969-10-14 Branson Instr Resonant sensing device
US3595069A (en) * 1969-02-14 1971-07-27 Panametrics Ultrasonic sensing system

Also Published As

Publication number Publication date
FR2251822B1 (es) 1977-10-21
US3955404A (en) 1976-05-11
DE2357033C2 (de) 1982-05-13
DE2357033A1 (de) 1975-05-22
JPS5081382A (es) 1975-07-02
IT1015762B (it) 1977-05-20
JPS5751608B2 (es) 1982-11-02
FR2251822A1 (es) 1975-06-13
GB1481698A (en) 1977-08-03

Similar Documents

Publication Publication Date Title
ES421626A1 (es) Procedimiento para la medicion de propiedades de materia- les, especialmente su dureza, por un metodo de contacto e impedancia.
ES2153091T3 (es) Mejoras introducidas en la medicion de distancias por eco de impulsos.
SE7812564L (sv) Forbettrad kalibrerings- och metkrets for ett instrument med kapacitiv testkropp
US3756081A (en) Displacement transducers
JPS53141074A (en) Pressure measuring apparatus
ES460534A1 (es) Un metodo para detectar la presencia de un articulo adyacen-te a un elemento de percepcion metalico por medio de una corriente electrica inducida.
GB1392110A (en) Apparatus and method for direct read-out of capacitively gauged dimensions
CH616551GA3 (es)
GB1502448A (en) Static capacitance type sensor
IT1108768B (it) Dispositivo indicatore di massima per strumenti di misura a quadrante particolarmente profondimetri e strumento di misura provvisto del dispositivo
GB1362631A (en) Apparatus for determining thermal stress in the shaft of a steam or gas turbine
GB1117143A (en) System for analyzing a physical process
JPS57132005A (en) Detector for extent of movement
FR2040302A1 (en) Instrument for precision measurement of - cross-sectional area
GB1118610A (en) Improved method and apparatus for determining density of a sample liquid
ES8606640A1 (es) Perfeccionamientos en un dispositivo manometrico o medidor diferencial de presion
GB1498407A (en) Displacement detecting devices
SU133171A1 (ru) Устройство дл измерени внутриглазного давлени
SU530173A1 (ru) Пневматический способ измерени линейных размеров
SU602826A1 (ru) Вибрационный вискозиметр
JPS55114929A (en) Brush pressure measuring unit
SU418816A1 (ru) Датчик для измерения магнитной индукции
GB1401274A (en) Volume measurement
GB1110778A (en) Improvements in portable instruments for determining the gas content of underground air currents
GB1149970A (en) Improvements relating to measurement