Patent ID: 6845649

Claim:
A rotational angle output regulating method comprising: mounting a sensing unit including a non-contact type sensing element disposed so as to form a gap with a magnet, the magnet rotating integrally with a shaft portion of a rotary member, the non-contact type sensing element detecting a rotational angle of the rotary member using a magnetic field generated by the magnet; operatively connecting a rotational angle detection member to the shaft portion of the rotary member at an end opposite where the magnet is disposed, and adjusting and temporarily fixing the rotary member at a first predetermined rotational angle; outputting an original output signal indicating the first predetermined rotational angle of the rotary member, and thereafter disconnecting the rotational angle detection member from the shaft, wherein said magnet is a cylindrical magnet and said sensing unit is mounted so that said non-contact sensing element is facing an inner periphery of said cylindrical magnet.