| 摘要 |
The invention relates to a method for determining at least one property of a flowing biological liquid, comprising of: generating an alternating current electrical field at a determined frequency in the biological liquid for a determined time; measuring during this determined time a measurement signal of the electrical impedance between at least two points in the biological liquid; and comparing the measurement signal with a predetermined relation between the measured impedance and the property of the liquid, wherein the biological liquids is not blood. The invention also relates to an apparatus for determining at least one property of a biological liquid, comprising: a tube for receiving a flow of biological liquid; means for generating an alternating current electrical field with a determined frequency in the biological liquid for a determined time; means for measuring the electrical impedance between at least two point in the biological liquid; and a recording device connectable to the measuring means for recording the measured electrical impedance and/or impedance change in the biological liquid; in addition to a transport system for a biological liquid, comprising least one pumping means and a tube. |
