In order to perform Preventive Maintenance (PM), two approaches have evolved in the literature. The traditional approach is based on the use of statistical and reliability analysis of equipment failure. Under statistical-reliability (S-R)-based PM, the objective of achieving the minimum total cost is pursued by establishing fixed PM intervals, which are statistically optimal, at which to replac...

PROBLEM/CONDITION Aquatic facility-associated illness and injury in the United States include disease outbreaks of infectious or chemical etiology, drowning, and pool chemical-associated health events (e.g., respiratory distress or burns). These conditions affect persons of all ages, particularly young children, and can lead to disability or even death. A total of 650 aquatic facility-associate...

For more than 6 years, the automated ultrasonic and eddy-current systems for the inspection of railroad wheel sets, developed by Fraunhofer IZFP and Fraunhofer TEG, have been field-hardened through daily operation at various maintenance facilities of the Deutsche Bahn (DB). The testing stations are equipped with IZFP’s multi-channel electronics, a modular PC integrated system operating inside 1...

Environmental health inspection is part of the environmental services carried out by Public Health Center. inspections are observing media using center's sanitarian kit to measure quality water, air and food. The District/City Office expected assist Center in providing a as tool support inspections. that already have kit, need carry item management which includes monitoring evaluating use equip...

In recent years, as the weight of IT equipment has been reduced, the demand for motor fans for cooling the interior of electronic equipment is on the rise. Sensory test technique by inspectors is the mainstream for quality inspection of motor fans in the field. This sensory test requires a lot of experience to accurately diagnose differences in subtle sounds (sound pressures) of the fans, and t...

Abstract Partial discharge is an important reason for the failure of GIS equipment, and its detection can determine type position defect in GIS. In inspection, accurate positioning defects provide reference maintenance. response to this, this paper proposes a optical location method based on multi-normal photoelectric array. Based SiPM sensor, array designed built into coaxial structure equipme...

In this paper, we develop a non-destructive inspection system for secondary battery welding. battery, when the insulation or separator of each electrode is damaged by an impact from outside depending on degree welding, internal short circuit occurs during charging and fires even if it does not ignite at that time. To detect this, AOI (Automatic Optical Inspection) developed compares target with...