A pre-verifiable calibration model of wall shear stress thermal sensor driven by constant current

This paper presents a pre-verifiable calibration model, which can accurately characterize the measurement behavior of the flexible wall shear stress thermal sensor in constant current drive mode. In this calibration model, the fitting parameter a can be pre-verified with IR_a, which provides a method to verify the accuracy of calibration instruments and data. In repetitive experiments, the average related normalized standard deviation ε_τ is 1.26%, which indicates that our calibrations are reliable. And the relative deviations η between a and IR_a are below 1.15% in all experiments, which indicates that the calibration model can pre-verify the reliability of calibration instruments and data among different sensors and different drive currents.