| 摘要 |
A magnetic flow sensor is configured to compensate for electrode related drifts by connecting the electrodes either to each other or to a reference voltage during most of an operating duty cycle. Some versions of the invention use multiple sensing heads in a single sensor to increase the magnitude of the flow related signal, either by interconnecting ones of the electrodes or by externally summing the signals. Additionally, some versions of the sensor can be used with weakly electrically conducting flow conduits, such as blood vessels.
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