| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic shock absorber monitoring system monitoring existence of abnormality of an electromagnetic valve of a hydraulic shock absorber. SOLUTION: The hydraulic shock absorber monitoring system 10 is assembled in an isolation system which isolates vibration of a structure such as a high-rise building. A control circuit 50 of the hydraulic shock absorber monitoring system 10 analyzes vibrating conditions of the structure from detected signals in response to output acceleration of first to third acceleration sensors 42, 44, and 46, and produces control signals to hydraulic shock absorbers 20(20<SB>1</SB>to 20<SB>10</SB>) so as to produce damping force suitable to the vibrating conditions, and adjusts damping coefficients of the hydraulic shock absorbers 20(20<SB>1</SB>to 20<SB>10</SB>). Further, the control circuit 50 determines whether or not a current detecting value detected by the sensors for detecting a current of a signal supplying to the electromagnetic valve 96 of a damping force adjusting section is normal. Thus, the control circuit 50 can monitor whether or not any electromagnetic valve 96 is normal by operating numerous electromagnetic valves 96. COPYRIGHT: (C)2007,JPO&INPIT
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