| 摘要 |
Systems and methods for processing and analyzing samples are disclosed. The system may process samples, such as biological fluids, using assay cartridges which can be processed at different processing locations. The system includes a sensor system, the sensor system comprises a mandrel ( element 4110 in FIG. 15(e)), which may form part of a pipetting device, and a sensing circuit configured to determine a characteristic of an extension element on the mandrel. The sensing circuit comprises one or more sensor channels, coupled to a processor (controller 4600 in FIG. 15(e)) configured to determine the characteristic of the extension element based on the error signal. The sensing system can comprise a sensing circuit a liquid level sensing circuit. The sensing circuit can also provide a signal that indicates when a portion of the extention element contacts or approaches the liquid air interface. |
