Procedure for flow measurement and equipment therefor
First Claim
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1. A process for measuring flow, comprising the steps or:
- generating a marker volume by applying an electric voltage to a volume of electrolytic body-related fluid running through a measured length in a direction of flow, and calculating a value corresponding to the flow speed by determining the transit time of the marker volume in the measured length, wherein the step of generating a marker volume for electrolytic body-related fluid comprises producing a short-term electrolytic breakdown of the fluid by applying a voltage of less than 24 V.
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Abstract
A process and apparatus for flow measurement in which a marker volume is generated by the application of an electric voltage. This marker volume runs through a measured length in the direction of flow. The flow speed or a measurement linked to the flow speed is calculated from the transit time of the market volume. In adapting same for use in the characteristic flow range of body-related, aqueous fluids, that is, for measuring the flow of electrolytic, body-related fluids, the marker volume is generated by a short-term electrolytic breakdown of the fluid and the applied voltage is less than 24 Volts.
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16 Claims
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1. A process for measuring flow, comprising the steps or:
- generating a marker volume by applying an electric voltage to a volume of electrolytic body-related fluid running through a measured length in a direction of flow, and calculating a value corresponding to the flow speed by determining the transit time of the marker volume in the measured length, wherein the step of generating a marker volume for electrolytic body-related fluid comprises producing a short-term electrolytic breakdown of the fluid by applying a voltage of less than 24 V.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for measuring flow of an electrolytic body related fluid, comprising:
- means defining a measured flow length receptive of an electrolytic body related fluid upstream of the measured length comprising at least one work electrode and means for applying a voltage of less than 24 volts to the at least one work electrode to produce a short-term electrolytic breakdown of the fluid, means for determining the transit of the marker volume in the measured length to calculate flow speed therefrom and a flow guide element located in the vicinity of the electrodes.
- View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
Specification