| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce power consumption simultaneously while realizing low-noise and highly accurate measurement, to reduce a battery exchange service life and to perform drive by the power source of a fine capacity in a wireless distortion sensor capable of measuring vibrations and dynamic distortions. <P>SOLUTION: In the mechanical quantity measuring apparatus, when measuring the dynamic distortion in a wireless distortion sensor module 13, output from a distortion sensor 2 is filtered by a filter 4 and is rectified and smoothed in a rectifying and smoothing circuit, then data processing is performed in a CPU and wireless communication is performed. Thus, since the sampling cycle of a data processing CPU is prolonged and a data amount to be wirelessly communicated is reduced, the power consumption of the CPU and the wireless communication is reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT |
