Development of a Non-Insulated Cryogenic Strain-Gauge Balance

摘要

Measurement of aerodynamic forces in the European Transonic Wind tunnel (ETW) is done with strain gage balances. The low and transient temperatures in this wind tunnel necessitate either to keep the balances at room temperature (heating and insulation) or to develop special balances for cryogenic circumstances (noninsulated). Experiments leading to the development of a three component cryogenic strain gage balance is reviewed discussed briefly.