Importance

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Abstract

A measuring unit capable of measuring change in physical quantity, such as a temperature, and incorporating a measuring portion for sequentially recording plural measurement data measured at a predetermined interval in a memory, and a communication portion capable of transferring the recorded plural measurement data in the memory and the period elapsed from the last data measurement to communication. In the measuring unit, only measurement data can be recorded, requiring no recording of the time information. After transferring the measurement data and the elapsed period to a measuring data management apparatus, the measuring data management apparatus is able to obtain measurement time of each measurement data. Therefore, the structure of the measuring unit can be simplified and the capacity of the memory can effectively be used to record the measurement data. Moreover, time required to transfer measurement data can be shortened. Thus, the resultant measuring unit minimizes electric power consumption and be usable for measurement over en extended period.

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First Claim