Instrumentation for measuring the magnetic lung contamination of steel welders

K. Kalliomäki, P.-L. Kalliomäki, Väinö Kelhä, V. Vaaranen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A technique, with the instrumentation required, is described that allows the routine mapping of magnetic lung contamination in vivo . The instrumentation consists of (1) a patient chair which moves during the mapping between two fluxgate transducers and two magnetizing coils producing a magnetic field to magnetize the lung contaminants and (2) a minicomputer for control, calculations and reporting. Measurements of lung contamination among mild steel and stainless steel welders are reported. The resolution in magnetic field measurement is 0.1 nT, corresponding to a sensitivity better than 1 mg of magnetic contaminants in the lungs in the form of magnetic iron oxides. The magnetic properties of welding fumes produced in mild steel and stainless steel welding processes are also reported.

Original languageEnglish
Pages (from-to)175 - 184
Number of pages10
JournalAnnals of Occupational Hygiene
Volume23
Issue number2
DOIs
Publication statusPublished - 1980
MoE publication typeNot Eligible

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Steel
Welding
Lung
Stainless Steel
Magnetic Fields
Minicomputers
Transducers

Cite this

Kalliomäki, K. ; Kalliomäki, P.-L. ; Kelhä, Väinö ; Vaaranen, V. / Instrumentation for measuring the magnetic lung contamination of steel welders. In: Annals of Occupational Hygiene. 1980 ; Vol. 23, No. 2. pp. 175 - 184.
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abstract = "A technique, with the instrumentation required, is described that allows the routine mapping of magnetic lung contamination in vivo . The instrumentation consists of (1) a patient chair which moves during the mapping between two fluxgate transducers and two magnetizing coils producing a magnetic field to magnetize the lung contaminants and (2) a minicomputer for control, calculations and reporting. Measurements of lung contamination among mild steel and stainless steel welders are reported. The resolution in magnetic field measurement is 0.1 nT, corresponding to a sensitivity better than 1 mg of magnetic contaminants in the lungs in the form of magnetic iron oxides. The magnetic properties of welding fumes produced in mild steel and stainless steel welding processes are also reported.",
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Kalliomäki, K, Kalliomäki, P-L, Kelhä, V & Vaaranen, V 1980, 'Instrumentation for measuring the magnetic lung contamination of steel welders', Annals of Occupational Hygiene, vol. 23, no. 2, pp. 175 - 184. https://doi.org/10.1093/annhyg/23.2.175

Instrumentation for measuring the magnetic lung contamination of steel welders. / Kalliomäki, K.; Kalliomäki, P.-L.; Kelhä, Väinö; Vaaranen, V.

In: Annals of Occupational Hygiene, Vol. 23, No. 2, 1980, p. 175 - 184.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Instrumentation for measuring the magnetic lung contamination of steel welders

AU - Kalliomäki, K.

AU - Kalliomäki, P.-L.

AU - Kelhä, Väinö

AU - Vaaranen, V.

PY - 1980

Y1 - 1980

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AB - A technique, with the instrumentation required, is described that allows the routine mapping of magnetic lung contamination in vivo . The instrumentation consists of (1) a patient chair which moves during the mapping between two fluxgate transducers and two magnetizing coils producing a magnetic field to magnetize the lung contaminants and (2) a minicomputer for control, calculations and reporting. Measurements of lung contamination among mild steel and stainless steel welders are reported. The resolution in magnetic field measurement is 0.1 nT, corresponding to a sensitivity better than 1 mg of magnetic contaminants in the lungs in the form of magnetic iron oxides. The magnetic properties of welding fumes produced in mild steel and stainless steel welding processes are also reported.

U2 - 10.1093/annhyg/23.2.175

DO - 10.1093/annhyg/23.2.175

M3 - Article

VL - 23

SP - 175

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JO - Annals of Work Exposures and Health

JF - Annals of Work Exposures and Health

SN - 2398-7308

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