Siridech Boonsang, Wittaya Niltarach, and Wanchai Aroonjarernchay
Flying height measurement, DFHT4, Environmental control
This paper presents the environmental controlled system for the flying height measurement. The effect of temperature and humidity to flying height change is seriously needed due to the critically small head-media spacing. The small environmental changes can cause the variation of the head-media spacing. The flying height measurement system is based on the commercial dynamic flying height testing machine. The maximum temperature that the flying height measurement system can be performed is 58 degree Celsius at the relative humidity of 3 %. The slider flying height is linearly reduced with increasing temperature comparable with the measurement and simulation results shown in the literature.
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