Component Strain Gauge Balance Instrument

Forces acting on bodies which are moving in a Fluid (for example air) are important parameters required in order to analyze and design the bodies and vehicles for their aerohydro dynamic characteristics. These forces are largely estimated by measurement on scaled models of the bodies kept in a wind tunnel operating at a suitable wind speed. The forces are then extrapolated to the full scale. The measurements of these forces are conveniently made by appropriate balances which are designed to suit certain specifications. These specifications normally depend on the loads to be measured, size of the models and size of the wind tunnel etc.
The three component balance -WBAL–00103- manufactured by Sunshine measurements is suitable for use in a wind tunnel having a 600mm x 600mm test section and a maximum speed of 50msec. The estimated maximum loads that are likely to occur on typical suitable model of wings, vehicles, etc kept in the wind tunnel of the above size are of the order as follows.
Lift: 10 kg
Drag: 2 kg
Pitching moment: 5kg-mm
The Sunshine measurement Balance system suits the above specifications and can be mounted conveniently in 600mm x 600mm test sections.