SE8400014D0 - TROUBLESHOOTING DEVICE FOR CONTROL OF LONG-TERM FERROMAGNETIC ARTICLES AND CIRCUIT FOR TREATMENT OF OUTPUTS FROM THE TROUBLESHOOTING DEVICE - Google Patents

TROUBLESHOOTING DEVICE FOR CONTROL OF LONG-TERM FERROMAGNETIC ARTICLES AND CIRCUIT FOR TREATMENT OF OUTPUTS FROM THE TROUBLESHOOTING DEVICE

Info

Publication number
SE8400014D0
SE8400014D0 SE8400014A SE8400014A SE8400014D0 SE 8400014 D0 SE8400014 D0 SE 8400014D0 SE 8400014 A SE8400014 A SE 8400014A SE 8400014 A SE8400014 A SE 8400014A SE 8400014 D0 SE8400014 D0 SE 8400014D0
Authority
SE
Sweden
Prior art keywords
amplifier
rings
circuit arrangement
troubleshooting device
circuit
Prior art date
Application number
SE8400014A
Other languages
Swedish (sv)
Other versions
SE441397B (en
SE8400014L (en
Inventor
E O Mindeli
V A Kalandadze
K L Stefanidi
Original Assignee
Inst Gornoi Mek Im G A Tsuluki
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 Inst Gornoi Mek Im G A Tsuluki filed Critical Inst Gornoi Mek Im G A Tsuluki
Publication of SE8400014D0 publication Critical patent/SE8400014D0/en
Publication of SE8400014L publication Critical patent/SE8400014L/en
Publication of SE441397B publication Critical patent/SE441397B/en

Links

Classifications

    • 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

Abstract

The invention relates to the nondestructive testing of materials. The novel defectoscope comprises a U-shaped magnetising device whose pole shoes (2) have openings (3) for the workpiece (4) under test to pass through. It also comprises a sensing head (8) having a concentrator constructed in the form of two rings (9) and (10) having a trapezoidal cross section. The rings (9) and (10) are arranged with their smaller bases facing one another. Disposed between the rings (9) and (10) is a Hall pickup (11) whose output signal carries the information relating to the defect detected. According to the invention, the sensing head (8) is disposed in a sealed housing (13) made of nonmagnetic material in such a way that it is offset with respect to the magnetically neutral zone of the magnetic field in the direction opposite to the direction of travel of the workpiece (4) under test. The novel circuit arrangement for evaluating the output signal of the defectoscope comprises an amplifier (16) connected to a recording device (20). According to the invention, the circuit arrangement is provided with a capacitor chain (17) connected between the output of the Hall pickup (11) and the input of the amplifier (16). The noval circuit arrangement also comprises an adjustable voltage divider (18) which is inserted in the supply circuit of the amplifier (16), whose inverting input ... Original abstract incomplete. <IMAGE>
SE8400014A 1983-12-23 1984-01-02 TROUBLESHOOTING DEVICE FOR CONTROL OF LONG-TERM FERROMAGNETIC ARTICLES SE441397B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833346774 DE3346774A1 (en) 1983-12-23 1983-12-23 Defectoscope for testing elongated ferromagnetic workpieces and circuit arrangement for evaluating the output signals of the defectoscope

Publications (3)

Publication Number Publication Date
SE8400014D0 true SE8400014D0 (en) 1984-01-02
SE8400014L SE8400014L (en) 1985-07-03
SE441397B SE441397B (en) 1985-09-30

Family

ID=6217938

Family Applications (2)

Application Number Title Priority Date Filing Date
SE8400014A SE441397B (en) 1983-12-23 1984-01-02 TROUBLESHOOTING DEVICE FOR CONTROL OF LONG-TERM FERROMAGNETIC ARTICLES
SE8406175A SE458069B (en) 1983-12-23 1984-12-05 CIRCUIT FOR TREATMENT OF A SIGNAL FROM A HALL SENSOR IN A TROUBLESHOOTING DEVICE

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8406175A SE458069B (en) 1983-12-23 1984-12-05 CIRCUIT FOR TREATMENT OF A SIGNAL FROM A HALL SENSOR IN A TROUBLESHOOTING DEVICE

Country Status (2)

Country Link
DE (1) DE3346774A1 (en)
SE (2) SE441397B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI125313B (en) 2013-11-12 2015-08-31 Konecranes Oyj Apparatus and arrangement for monitoring the condition of an object having an elongate iron longitudinal axis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2012966A (en) * 1977-10-06 1979-08-01 Health & Safety Executive Apparatus for non-destructive testing of elongate objects

Also Published As

Publication number Publication date
SE441397B (en) 1985-09-30
SE8406175D0 (en) 1984-12-05
SE8406175L (en) 1984-12-05
DE3346774A1 (en) 1985-07-04
SE458069B (en) 1989-02-20
DE3346774C2 (en) 1988-12-01
SE8400014L (en) 1985-07-03

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