Methods, devices, and systems for establishing fly-height parameters for hard disk drives

A method for establishing a fly height parameter for a hard disc drive, the method comprising:

• receiving a set of testing data associated with the hard disc drive;
• receiving fly-height data associated with the hard disc drive and generated from a fly-height test performed at a first, nominal temperature;
• based on the set of testing data and the fly-height data, predicting the hard disc drive's fly-height data for a fly-height test at a second temperature different from the first, nominal temperature;
• establishing a curve of the predicted fly-height data;
• generating modified predicted fly-height data by deleting predicted fly-height data that are outliers with the established curve;
• and
• in response to the fly-height data and the modified predicted fly-height data, establishing the fly-height parameter for the hard disc drive.

A system for establishing a fly height parameter for a hard disc drive, the system comprising:

• a computing device comprising a trained artificial neural network, a processor, and a memory, wherein
• the computing device is configured to:
• receive a set of testing data associated with the hard disc drive,
• receive fly-height data associated with the hard disc drive and generated from a fly-height test performed at a first, nominal temperature,
• compute fly-height data for a fly-height test at a second temperature using the trained artificial neural network, the received set of testing data, and the received fly-height data, and
• compute a plurality of fly-height parameters for the hard disc drive based on at least the received fly-height data and the computed fly-height data.