Characterization of pressure transducers for future cryogenic wind tunnels

Operating cryogenic wind tunnels will require measurement equipment adapted to the specific environmental conditions. Among other things, it must be known how the existing wind tunnel pressure transducers will behave in a cryogenic environment. To this end, ONERA has developed special instruments to measure pressure transducer characteristics accurately between 300 and 120 K. Static tests carried out on the Kulite XCQL and ONERA 20H130 transducers show that they are usable at 120 K.