Sting Balance

Sting Balance .

Sting Balance

Description of Sting Balance

During the early years of wind tunnel testing, Forces and Moments were literally measured through pan-type balances. Although technology has advanced dramatically since those early days, the term balance is still applied to the devices used for Force and Moment measurements today. Balances can be divided into two main groups: internal and external. The group names are derived from their location relative to the test model and wind tunnel test section – internal balances reside inside a test model, while external balances reside outside the test section. Internal Force/Moment balances are almost universally used for measurements in supersonic and transonic tunnels. However, they are also becoming popular in subsonic tunnels.

Specifications of Sting Balance

Using modern machining processes such as Wire-EDM (Electrical Discharge Machining), strain gauge Sting Balance are made from a single piece of precipitation-hardened stainless steel. This one-piece design is superior to earlier designs in strength, accuracy and in providing lower interactions between components because no screws, pins or welds are used.