| 摘要 |
The present invention discloses an ultrasonic flow meter unit for detecting the mixing ratio of liquid components in a flowing liquid. The ultrasonic flow meter unit is arranged to measure a flow rate of a known liquid of two or more components. The flow meter unit is arranged to determine the speed of sound of the liquid and the temperature of the liquid, and based on a known relationship between a mixing ratio of the two or more components of the known liquid, the speed of sound and the temperature, the mixing ratio is determined. The ultrasonic flow meter unit may in embodiments be implemented in a flow meter, e.g. in the form of a consumption meter.
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