Title: Phase detector for rotating equipment
Application Number: 200610141510 Application Date: 2006.09.28
Publication Number: 1940481 Publication Date: 2007.04.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01D5/00;G01D5/12;G01D5/20;G01B7/00;G01B21/00
Applicant(s) Name: Weyerhaeuser Co. Address:
Inventor(s) Name:
Attorney & Agent: litao zhongqiang
Abstract:
    A very accurate rotational phase detection system is disclosed having first and second disks that are encoded with a 31-digit pseudo-random M-sequence, the first and second disks being attached to rotationally-coupled members. In the disclosed embodiment, the encoding is accomplished by dividing the disks into 31 sections and contouring the periphery of the disks such that sections corresponding to
Time: 6