Tightening torque sensor calibrating device for alternator, has reference sensor positioned above sensor to be calibrated, where torque values measured by respective sensors are directly compared with each other to calibrate latter sensor

摘要

#CMT# #/CMT# The device has a reference tightening torque sensor (10) mechanically coupled with a tightening torque sensor to be calibrated (2) for simultaneously subjecting the sensors to a same value of a torsion torque that is generated and mechanically transmitted by a torsion torque generator e.g. electric motor. Torsion torque values measured by the respective sensors are directly compared with each other for calibrating the sensor (2). The sensor (10) is positioned above the sensor (2) that is arranged above the generator. #CMT#USE : #/CMT# Used in an alternator for calibrating a tightening torque sensor. #CMT#ADVANTAGE : #/CMT# The device ensures the calibration of the torque sensor in a precise, simple and rapid manner, and also guarantees a better alignment of the sensors and the generator. The arrangement of the reference sensor, sensor to be calibrated and the generator avoids the utilization of bearings and ball bearings for stabilizing the sensor to be calibrated, thus diminishing parasitic tightening torque effects that disturb a transmission chain of tightening torque and the calibration process of the sensor to be calibrated. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an enlarged partial perspective view of an inner space of a calibrating device. 2 : Tightening torque sensor to be calibrated 10 : Reference tightening torque sensor 12a, 12b : Coupling pieces 17 : Upper plate 18 : Ribs.