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AD7832 Series Rotation Torque Sensor (RTS)

Category: Sensors
Manufacturer: A&D

The AD7832 series is a range of torque sensors with distributed force detection, created with A&D's DSP technology and high-speed telemetry technology.

The series can measure and display high-speed detailed phenomena faster and at a higher resolution than conventional sensors. The Rotation Torque Sensor is designed for in shaft torque measurement e.g as used for test beds for powertrain development.



  • Torque sensor featuring 1/3000 high resolution and robust construction
  • Robust against vibration: Sensor can be installed to Engine output shaft without intermediate bearing.
  • Real torque measurement using component force measurement
  • Dual range with high accuracy (without degrading the total accuracy)
  • Nominal torque: 200Nm - 5kNm
  • Combined error: 0.03%
  • Dual range: Combined error of 1/3000 is guaranteed at 1/5 of full scale
  • Maximum rpm: 12,000 rpm (200 Nm) - 10,000 rpm (5 kNm)


Model  AD7832Unit Remark
Performance Specifications    Rated Capacity (RC)2005001K2K5KNm 
 Full Scale (FS)200200/40500500/1001K1K/2002K2K/4005K5K/1KNm*1
 Total Error Range0.03%FS*2
Temperature SpecificationsTemperature Effect at Zero point0.003%RC/°C 
 Temperature Effect on Sensitivity0.003%Load/°C 
 Temperature Range for Compensation-10∼+60°C 
 Temperature Range for Operation-20∼+80°C 
 Temperature Range for Preservation-20∼+85°C 
Rotation SpecificationsMaximum rpm12000      10000r/min 
 Continuous rpm12000      10000r/min 
 Rotation Variation at Zero Point0.05%RC*6
Machine CharacteristicsMoment of Inertia4.0x10-35.0x10-36.0x10-39.0x10-314.0x10-3Kg•m² 
 Tortional Stiffness1.2x1031.1x103  1.7x1032.2x1033.6x103kNm/rad 
 Tortional Resonance Frequency7. 
 Tortion Angle0.2x10-30.4x10-30.6x10-30.9x10-31.4x10-3rad*7
 Allowable Overload200150%RC 
 Maximum Overload500300%RC 
 Maximum Thrust Load510203050kN 
 Maximum Radial Load510203050kN 
 Maximum Bending Moment 0.20.5125kNm 
 Weight of Rotor2. 

*1 : Hi/Lo
*2 : Measured with static torque testing including non-linearity and hysteresis.
*3 : Reference number
*4 : Measured with static torque testing.
*5 : BW=100HZ
*6 : Value after revolution zero calibration
*7 : Torsion angle on rated torque value.


ExteriorExterior Dimensions97 (W) x 97 (H) x 208.2 (D)mm
Electric SpecificationsPower SupplyInput: 90 - 240V 50 - 60Hz
Output: DC12V 3A
Supply from AC adaptor
 Power Consumption20 (AC adaptor included)W
 Operation Temperature Range10 - 40°C
InterfaceRotary Pulse InputLine driver differential input (RS422/485 conformity) 3ch (A phase, B phase, Z phase) 
 CANHi-speed CAN (differential signal I/F) CAN 2.0B 1ch 
 Analog OutputSingle end output 3ch (torque, revolution velocity and revolution angle) 
 Digital InputCurrent drive input by photocoupler insulation (sink type) 2ch (range switch, zero point adjustment) 
 Digital OutputOpen collector output by photocoupler insulation, 3ch (range switch, status and watchdog output) 
 Serial CommunicationRS485 1 port 


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