ATF315 Miniature Reaction Torque Sensor

Low-range disc-type static torque transducer

About the ATF315 Miniature Reaction Torque Sensor

This static torque transducer is used extensively in instrumentation and small electric motor test and calibration applications.

Torque transmission must be arranged to input only torque as extraneous forces, such as tare loads or axial loads will cause measurement errors. Note we are able to calibrate with extraneous load cases replicated. The highly symmetrical signal outputs are usually between 0.2 and 1mV/V for full range.

We are happy to design variants of this transducer to meet your specific requirements. Please consult our engineering department. If you require a higher torque range than 5 Nm the ALF311 is available with ranges up to 1000 Nm.

 

Key features ATF315

  • Measurement ranges 0 - 10 mNm to 0 - 5 Nm
  • Non-linearity 0.05 % RT
  • Output signal 0.2 - 1 mV/V
  • Supply voltage 10 VDC

Specifications

Rated torque
10 mNm to 5 Nm
Non-linearity, terminal
±0.05 % RT
Hysteresis
±0.1 % RT
Creep, 20 min
±0.3 % AT
Repeatability
±0.05 % RT
Rated output, nominal
0.2 to 1 mV/V (range dependant)
Zero load output:
±4 % RT
Temperature effect on rated output
±0.005 % AT/K
Temperature effect on zero load output (1 mV/V)
±0.01 % RT/K
Compensated temperature range
-10 - +50 °C
Operating temperature range
-10 - +80 °C
Supply voltage, recommended
10 V
Supply voltage, max.
15 V
Bridge resistance
700 Ohm
Insulation resistance, minimum at 50 VDC
500 MOhm
Overload, safe
125 % RT
Overload, ultimate
150 % RT
Weight (excl. cable)
approx. 110 to 130 g
Material
Aluminium
Notes: 1. RT = rated torque 2. AT = applied torque 3. Temperature coefficients apply over the compensated range. 4. Avoid applying axial or side loads to the central boss.
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