A DEGRADED PSEUDO-RANDOM ROTATING SENSOR

• Main Author: LI, SU
• Format: Patent
• Language: Chinese; English; French
• Published: 17.04.2008
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

A degraded pseudo-random rotating sensor includes a code disk (2) which comprises a time code track (8) and a pseudo code track (9). The pseudo code track (9) is encoded by using a degraded binary pseudo-random sequence on an entire circle, that is: (1), a close loop is composed of a binary code sequence of m bits on an entire circle, representing that the entire circle is divided into m equal shares in which m is a positive integer; (2), a sequential binary code of n bits is selected as an angular position code, n= 4; (3),m<2n; (4), the angular position code which is composed of a sequential binary code of n bits selected arbitrarily is unique, and m of different angular position codes correspond one by one to the angular position of m equal shares which are equally divided on the entire circle. L'invention concerne un détecteur rotatif pseudo-aléatoire dégradé comprenant un disque de codes (2), lequel comporte une piste de codes (8) et une piste de pseudo-codes (9). La piste de pseudo-codes (9) est codée au