Effect of load pad shape on the position error of column type strain gauge force transducer
Abstract
The position error of column type strain gauge force transducer was analysed, and the effect of load pad on the position error was investigated. Six load pads with various spherical radius were designed and fixed on two column type transducers with capacities of 300 kN and 100 kN to measure their position errors and verify the theory analysis. It is shown that the position error formula could be used to illustrate the effect of load pad shape on the position error. The increment of spherical radius of ball or cup caused the increment of side force and additional moment acted on the force transducer, which resulted in larger position error. The radius should be as small as possible under the permission of material strength.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- August 2018
- DOI:
- 10.1088/1742-6596/1065/4/042034
- Bibcode:
- 2018JPhCS1065d2034L