PROTOTYPE OF LOAD CELL APPLICATION IN TORQE MEASUREMENT |
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| Tassanai Sanponpute, Chokchai Watthong |
- Abstract:
- Torque laboratory of National Institute of Metrology Thailand has designed and developed the prototype of torque transfer wrench and torque wrench calibrator by using load cell as main device in order to provide low cost torque transfer standard. Loading point of load cell was designed to directly connect to torque measurement axle. Moreover, loading point and base of load cell were supported by elastic part acting as flexure bearing. Torque standard machine and commercial torque transfer wrench were used to compare torque measured by the prototypes, torque transfer wrench and torque wrench calibrator respectively. Simulation from finite element analysis confirms that the design can be used as torque measuring device. Metrological properties are investigated according to standard DKD 3-7 and DKD 3-8. The experiment and calibration result shows that uncertainty is within ±0.08% for torque transfer wrench and within ±0.3% for torque wrench calibrator.
- Keywords:
- torque wrench calibrator, torque transfer wrench, load cell
- Download:
- IMEKO-TC3-2010-034.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC3
- Event name:
- TC3 Conference 2010
- Title:
21st Conference on Measurement of Force, Mass and Torque (together with TC5 HARDMEKO 2010 and 2nd TC22 Meeting on Vibration Measurement)
- Place:
- Pattaya, THAILAND
- Time:
- 21 November 2010 - 25 November 2010