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Health monitoring of solenoid valve electromagnetic coil insulation under thermal deterioration
Jameson, N. Jordan; Azarian, Michael H.; Morillo, Carlos; Pecht, Michael; Wang K(王锴)
Conference NameJoint Conference on Machinery Failure Prevention Technology Conference, MFPT 2016 and ISA's 62nd International Instrumentation Symposium, IIS 2016
Conference DateMay 24-26, 2016
Conference PlaceDayton, OH, USA
Source Publication"Advances in Technology to Support End User Mission" - Proceedings of the 2016 Joint Conference/Symposium of the Society for Machinery Failure Prevention Technology and the International Society of Automation
PublisherSociety for Machinery Failure Prevention Technology
Indexed ByEI
EI Accession number20163102659091
Contribution Rank2
AbstractSolenoid-operated valves (SOVs) are widely used components in a variety of industries and systems. Though they are small components, their failure can lead to catastrophic failure of the system in which they are placed. Past studies have revealed the electromagnetic coil insulation to be a weakness, and prior work in the AC motor community on twisted pairs has shown that insulation capacitance measurements can reveal useful diagnostic information. Yet, no studies have tracked the impedance spectrum over an aging/degradation period, no methods are available to identify frequencies in the impedance spectrum to be used, there discussion about how to employ coil impedance to determine a degradation mechanism, nor has there been any quantifications of the mechanical properties due to degradation. This paper develops a method of detection of the aging of insulation in low-voltage electromagnetic coils when subjected to elevated temperature environmental conditions by assessing changes in the impedance spectrum. In this experiment, a solenoid valve was powered and subjected to an operating environment equal to its maximum operating temperature. The valve was periodically removed from the temperature chamber and the impedance spectrum measured. The complex impedance was split into its real and imaginary parts and the Spearman correlation coefficient was used to find regions of interest within the impedance spectrum. The results indicate that resistance and reactance provide information that can assist in condition-based maintenance procedures for electromagnetic coils. Furthermore, mechanical properties of the insulation are investigated and reveal differences in degradation due to environmental conditions.
Document Type会议论文
Corresponding AuthorJameson, N. Jordan
Affiliation1.Center for Advanced Life Cycle Engineering, University of Maryland, College Park, MD, 20742, United States
2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China
Recommended Citation
GB/T 7714
Jameson, N. Jordan,Azarian, Michael H.,Morillo, Carlos,et al. Health monitoring of solenoid valve electromagnetic coil insulation under thermal deterioration[C]:Society for Machinery Failure Prevention Technology,2016:1-25.
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