CONTACTLESS TORQUE SENSOR

Disclosed is a contactless torque sensor, comprising a magnetic force generating component (1) and a magnetic force conducting component (2). The magnetic force generating component (1) comprises multiple radially directed pairs of magnets (11) uniformly distributed on the same circumference. The magnetic force conducting component (2) comprises an inner annular magnet yoke (21) and an outer annular magnet yoke (22) arranged coaxially and oppositely, the inner annular magnet yoke having multiple inner magnetically conductive teeth (231), and the outer annular magnet yoke having multiple outer magnetically conductive teeth (232). The torque sensor forms a closed magnetic circuit by means of generating a magnetic field via the pairs of magnets (11) in multiple groups of magnetic force acquisition assemblies (4) and conducting same to the inner annular magnet yoke (21), the outer annular magnet yoke (22), extraction magnet yokes (31, 32) and a third air gap (33) arranged therebetween through pairs of magnetic co