Method of detecting a gas bubble in a liquid

摘要

A method of detecting a gas bubble in a measuring chamber filled with a liquid. The electrical conductivity of the liquid or a variable derived therefrom is measured in the measuring chamber at a first pressure value p₁, and a first measured value S₁ is detected. The pressure in the measuring chamber is changed, the electrical conductivity of the liquid or a variable depending thereon is measured in the measuring chamber at at least a second pressure value p₂, and a second measured value S₂ is detected. The presence or lack of presence of at least one gas bubble in the liquid is detected by comparing the first measured value S₁ to the second measured value S₂.