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RE: The contact area of a conical stylus is greater than an elliptical...hence

> can somebody clarify how the "contact with record" dimensions relate to the "Contact surface" area?

That's a good question! I don't have a clue.

According to the contact patch dimension of a 0.7-mil stylus, it should have a contact area with one record groove wall of:

3.8 2 * (Pi) / 4 = 11.34-microns 2

Then I suppose you would multiply that by two since its sitting in a V-shaped groove for a total contact area of 22.68-microns 2 .

I don't understand how they came up with a contact surface of 30.5-microns 2 .

Your guess is as good as mine. :-)

Best regards,
John Elison

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