Patent ID: 8804135

Claim:
A method of measuring static attitude angles of a tongue of a head suspension, the tongue having a fitting face to which a slider is attached, an insulating layer formed on the fitting face, and a plurality of electrodes arranged on the insulating layer and used for the slider, the method comprising steps of: emitting a single collimated beam to an area of the fitting face that contains at least two of the electrodes so that the area of the fitting face is once irradiated with the single collimated beam and said at least two of the electrodes are positioned in a range of a diameter of the single collimated beam at the time of said once irradiating; extracting electrode reflective components of the electrodes that have been positioned in the range of the diameter of the single collimated beam at the time of said once irradiating from a reflected beam of the single collimated beam reflected by the area of the fitting face; and measuring the static attitude angles of the tongue according to the electrode reflective components.