Applications TURNING MOMENTS INTO IMPRESSIVE SOLUTIONS.


PRECISION TORQUE SENSOR 8661  Torque/angle measurement on vehicle dashboard controls


couplings M motor Benefits object torque sensor


 Simplified construction because there is no need for an additional high-resolution angle sensor


When monitoring the haptic response of a rotary switch, it is important to measure precisely the torque that must be applied (adjustment force required > proprioceptive sensation > tactile


sensation). The 8661 torque sensor can be used to measure reproducibly and extremely accurately ultra-low torques over a defined angle range during forward and return movement.


 Measuring the friction torque in greased ball bearings


mounting/ attachment


couplings motor torque sensor ball bearing


Highlights  Torque measurement < 0.1 Nm  Speed measurement up to 20000 1/min  Includes built-in USB port


Benefits  High measurement cycle rates  Visualization and data logging in one measurement step


The torque is applied using a variable-speed controlled asyn- chronous AC motor. Depending on the amount of grease in the ball bearing, the motor is run at different speed levels for various time intervals in order to obtain continuous measurements of the


friction torque during continuous operation, and to transfer these measurements via USB port to the DigiVision PC software for visualization and data logging.


Highlights  Torque measurement < 0.05 Nm  Angle resolution 0.0885 °


 Dual-range model for measuring start-up and continuous operation characteristics of geared motors couplings motor rotation brake


Highlights  Dual-range model  Ratio 1:10  High precision for both measurement ranges  Scaled standard signal output for both measurement ranges


torque sensor


Benefits  No downtimes for sensor replacement  Cost savings


In order to improve the electromechanical energy conversion in gea- red motors in different load scenarios with a view to long operating lives, it is essential to measure mechanical, electrical and thermal characteristics in endurance testing. During the start-up phase under load, disproportionately high starting torques often arise that lie


well above the steady-state load torque. The dual-range model can be used to measure precisely and reliably the starting torque in the first measurement phase and the steady-state load torque in the second phase. The change to the second measurement range is made by applying a signal level to the switchover channel.


burster Torque sensors 5


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