| 摘要 |
Pressure-measuring apparatus (100) is provided, including a battery (118) and a pressure transducer (114). The pressure transducer (114) is adapted to be placed in a patient, and has a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f. A control unit (102) is adapted to actuate the battery (118) to drive current through the pressure transducer (114) for a current-driving time period less than 0.5 p, and to sense an electrical characteristic of the pressure transducer (114) during the current-driving time period. |
