Bimetallic-Junction Shock Pressure Sensors

This paper briefly describes the behaviors, feature, construction and application of the bimetallic junction sensor. It also presents the construction parameters for three combined types of sensors and their V-p curves under the experimental conditions, which show that there principally exists a linear dependence in the pressure range. Their fitting formulae are also given. The diversity of the experimental results are less than 12% at the pressure of 45 GPa and less than 8% at 80 GPa and 116 GPa, respectively. The pressures induced by the double shock waves and their time interval were measured by type Ⅲ sensor. The obtained results are in good agreement with the predicted values.