| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data recording device which can record data for recognizing the operational status of not only a monitoring object to which electric currents are externally supplied but also a monitoring object to which electric currents are not externally supplied. <P>SOLUTION: A data recording device is composed of a timer part 4 which generates time data D2, a storage part 5 and a CPU 8, and can be mounted on a monitoring object. The CPU 8 detects the level of an oscillation occurring to the monitoring object for each prescribed time based on a detection signal S1 detected by an oscillation sensor 2 and makes the storage part 5 store the detected level of the oscillation and the detection time of the level of the oscillation specified based on the time data D2. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
