COMPARISON OF CONTRAST SENSITIVITY AMONG WELDER WITH THREE METHODS OF GMAW, SMAW AND RESISTANCE WELDING

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MALEKPOUR B.; JAFARZADEHPOUR E.; MIRZAJANI A.

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Journal: Journal of Health and Safety at Work Year:2014 | Volume:4 | Issue:2 Page(s): 27-36

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Title

COMPARISON OF CONTRAST SENSITIVITY AMONG WELDER WITH THREE METHODS OF GMAW, SMAW AND RESISTANCE WELDING

Author(s)

MALEKPOUR B. | JAFARZADEHPOUR E. | MIRZAJANI A. | Issue Writer Certificate

Keywords

ULTRAVIOLET RADIATIONQ3

CONTRAST SENSITIVITY TESTQ3

ARC WELDINGQ2

RESISTANCE WELDINGQ3

SPATIAL FREQUENCYQ3

EYE SAFETYQ3

Abstract

Introduction: The present study was carried out to compare contrast sensitivity among three groups of professional welders including (1) those who use gas metal ARC WELDING (GMAW) (2) those who use shield metal ARC WELDING (SMAW) and the group that uses RESISTANCE WELDING.Material and Method: In this research, all the welders who use GMAW, SMAW and RESISTANCE WELDING working in an industry who were all male, performed CONTRAST SENSITIVITY TEST, using Freiburg. The CONTRAST SENSITIVITY TEST was done at three SPATIAL FREQUENCY of 1cpd, 5cpd and 15 cpd under a constant condition. The three selected groups were similar regarding age and work experience. The result of the three groups at each SPATIAL FREQUENCY were recorded and compared with other groups.Results: ANOVA test showed that decrease contrast sensitivity in SPATIAL FREQUENCY of GMAW group at the SPATIAL FREQUENCY 15cpd, significantly decrease comparing to SMAW group (p=0.028) and RESISTANCE WELDING group (p=0.041). The mean (SD) of contrast sensitivity at frequency of 1cpd, 5cpd and 15cpd was respectively 140.69±51.8, 172.7±43.75 and 39.8±25.92 for the GMAW group and 157.8±42.2, 183.21±32.01 and 60.57±54.30 for the SMAW group and 149.10±50.68, 180.60±35.42 and 57.38±39.22 for RESISTANCE WELDING.Conclusion: Although all welders use goggle or other personal protective equipment, loss of contrast sensitivity of GMAW workers can be attributed to the cumulative effects of the radiation.

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APA: Copy

MALEKPOUR, B., JAFARZADEHPOUR, E., & MIRZAJANI, A.. (2014). COMPARISON OF CONTRAST SENSITIVITY AMONG WELDER WITH THREE METHODS OF GMAW, SMAW AND RESISTANCE WELDING. JOURNAL OF HEALTH AND SAFETY AT WORK, 4(2), 27-36. SID. https://sid.ir/paper/235622/en

Vancouver: Copy

MALEKPOUR B., JAFARZADEHPOUR E., MIRZAJANI A.. COMPARISON OF CONTRAST SENSITIVITY AMONG WELDER WITH THREE METHODS OF GMAW, SMAW AND RESISTANCE WELDING. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2014;4(2):27-36. Available from: https://sid.ir/paper/235622/en

IEEE: Copy

B. MALEKPOUR, E. JAFARZADEHPOUR, and A. MIRZAJANI, “COMPARISON OF CONTRAST SENSITIVITY AMONG WELDER WITH THREE METHODS OF GMAW, SMAW AND RESISTANCE WELDING,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 4, no. 2, pp. 27–36, 2014, [Online]. Available: https://sid.ir/paper/235622/en

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