Measurement of real contact area on thermal print head using a laser microscope with a wide field of view

Nitta, Isami; Tsukiyama, Yosuke; Tsukada, Tokumasa; Terao, Hirotoshi

doi:10.1016/j.triboint.2014.06.005

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…Similar to that in optics [46][47][48], 'field of view' is introduced as an essential and significant parameter for electrostatic OLSs due to the fact that OLSs only detect charge in the field of the sensing zone of a probe. The electrostatic field of view used in Morris's work [11] was defined as the measurable maximum range in space detected by the electrostatic sensor when an inducing charge passes through the sensing zone of the sensor probe.…”

Section: Field Of Viewmentioning

confidence: 99%

Simulation of Electrostatic Oil Line Sensing and validation using experimental results

Liu

Zuo

Sun

et al. 2017

Tribology International

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Electrostatic Oil Line Sensor (OLS) is one type of the electrostatic sensors based on electrostatic charging phenomenon and has been used in wear debris monitoring in oil lubricated tribological systems. With the advantages of high sensitivity and resolution, OLS has been proved to be an effective sensing technique for sliding, rolling and bearing contacts. However the sensing technique has so far not been widely used in industrial systems due to the difficulties in identify the exact charge sources and charging mechanisms in a complex tribological system. This paper presents the results from a simulation of the sensing mechanisms that is successfully validated by experimental results. The initial OLS simulation results have led to a better sensor design and its application.

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Section: Field Of Viewmentioning

confidence: 99%

Simulation of Electrostatic Oil Line Sensing and validation using experimental results

Liu

Zuo

Sun

et al. 2017

Tribology International

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“…40 Previously, extensive experimental approaches for the real contact are based on the thermal resistance, electric resistance, ultrasonic reflection and optical measurement, 41 where one surface of contact pair can be transparent and directly monitored 42,43 by constructing self-designed equipment to measure the real contact area. In addition, some experiments lack of resolution cannot display the actual contact behaviors of multi-scale asperities of rough surface, 44,45 such as roughness scale information, thus that also cannot obtain the real contact area accurately. Recently, poor resolution in measuring and observing the contact behaviors between rough surfaces 41 was improved by a test rig with submicron resolution, 46 however a lager cost occurred in equipment.…”

Section: Introductionmentioning

confidence: 99%

A multi-scale model of real contact area for linear guideway based on the fractal theory

Jin

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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High precision, efficiency and reliability are the unremitting pursuits of machinery manufacturing industry. As one of the pivotal function parts of high-end NC machine tool, precise linear guideway determines the machining precision and operation performance. Accurate evaluation and prediction of surface topography are the crucial effects on the matching performance of linear guideway. In this paper, the real contact area is regarded as a key parameter, a multi-scale method with the fractal theory is proposed. First, the contact area of a single asperity was obtained with Hertz contact theory. Afterwards, the contact area between rough surfaces was deduced by the fractal theory. Finally, using the proposed multi-scale contact mechanics model, the real contact area between rough plane and cylinder was obtained by integral solution. Compared with the former fractal model and GW model, the proposed model on the real contact area calculation of linear guideway is more accurate and comprehensive. The effect factors of load, fractal parameter and friction were discussed, the increasing rate of real contact area of smoother surface is greater as load increases. The proposed model may provide practical guidance for assembly accuracy and surface quality requirements at design stage.

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“…Several attempts to experimentally analyse a real contact area with an optical method have been reported [32] to [36]. The vast majority of research has involved the contact between an ideally smooth, rigid flat and a ball, which simulates a single asperity peak [29], [35], [37] and [38].…”

Section: Introductionmentioning

confidence: 99%

In-situ Observations of a Multi-Asperity Real Contact Area on a Submicron Scale

Zugelj¹,

Kalin²

2017

SV-JME

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Measurement of real contact area on thermal print head using a laser microscope with a wide field of view

Cited by 7 publications

References 10 publications

Simulation of Electrostatic Oil Line Sensing and validation using experimental results

Simulation of Electrostatic Oil Line Sensing and validation using experimental results

A multi-scale model of real contact area for linear guideway based on the fractal theory

In-situ Observations of a Multi-Asperity Real Contact Area on a Submicron Scale

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