Determining hydrogen concn. in gas mixtures or hydrogen transmission and diffusion in solids

摘要

The gas mixture under investigation is introduced into a measurement chamber and brought into contact with a sensor of hydrogen absorbent material or the sensor of hydrogen absorbent material is introduced into a solid. The specific conductivity of the hydrogen absorbent material varies measurably with absorption of hydrogen.The increase in the electrical resistance of the material is measured against time and compared with calibration curves to determine the hydrogen partial press. in the gas mixture or the hydrogen transmission and diffusion in the solid.