Title:
TORQUE SENSOR
Document Type and Number:
Japanese Patent JPH04168331
Kind Code:
A
Abstract:
PURPOSE:To enable measurement of a torque more effectively by a method wherein a conducting rubber is used to transmit a torque of a rotor thereto and a change in thickness of the rubber is detected as resistance value to allow measurement of the torque of the rotor with a plane. CONSTITUTION:Torque transmission plates 3a-3d are arranged along a circumferential surface of an inner cylinder 2. Support plates 4a-4d provided corresponding to the transmission plates 3a-3d sticking out into an internal surface of an outer cylinder 1 are arranged and conducting rubbers 5a-5d are arranged so as to be supported being sandwiched therebetweeen. When a torque is applied to an outer cylinder 2 from a roto, it is transmitted to the individual transmission plates 3a-3d to weld the rubbers 5a-5d under pressure with the corresponding support plates 4a-4d. Then, changes in thickness of the rubbers 5a-5d are detected as such in resistance value through a contact foil bonded on both sides thereof. As the rubbers 5a-5d are sandwiched between the plate-shaped members, the torque can be determined with a plane to allow the averaging of the size thereof automatically. The rubbers 5a-5d or the like are arranged at each 90 deg. thereby enabling the detection of a direction in which the torque is applied.
Inventors:
KOBAYASHI TORU
Application Number:
JP29694490A
Publication Date:
June 16, 1992
Filing Date:
October 31, 1990
Export Citation:
Assignee:
NEC CORP
International Classes:
G01L3/14; G01L3/10; (IPC1-7): G01L3/10
Attorney, Agent or Firm:
Yanagi Shin Kawai
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