| 摘要 |
An exemplary portable sensor apparatus with detachable and interchangeable sensor unit(s) connected through USB interface. The portable electronic device and the sensor unit(s) have pairing USB port and USB plug respectively, for facilitating digital signal transmission between the sensor unit(s) and the portable electronic device. The sensor unit(s) includes a sensor probe for real-time measuring or monitoring physical and/or chemical parameters of a target object, and an analog-to-digital (A/D) converter to convert the signals into digital ones. The portable electronic device includes a storage unit and a processing unit. The storage unit is for storing multiple programs and data for different sensing applications. The processing unit is for receiving digital signals, selecting an appropriate program from the storage unit, analyzing the digital signals by the selected program and thereby acquiring data from the measurement. |
