| 摘要 |
PROBLEM TO BE SOLVED: To provide a system capable of measuring surely and inexpensively axial vibration relative to an apparatus operated intermittently and having a comparatively short operation time. SOLUTION: This ultrasonic vibration measurement system is constituted of: ultrasonic sensors 2 installed on a plurality of intermittent operation apparatuses 1 respectively; an ultrasonic transmitting/receiving device 4 for transmitting an ultrasonic signal to the ultrasonic sensor, and receiving the ultrasonic signal from the ultrasonic sensor; a switcher 3 for connecting selectively one of the ultrasonic sensors to the ultrasonic transmitting/receiving device; and a signal processing device 5 for performing signal processing by receiving a signal from the ultrasonic transmitting/receiving device, to form a vibration waveform. The ultrasonic vibration measurement system also includes a clamp type ammeter 41 installed on a power supply cable of the intermittent operation apparatus 1 and connected to the switcher 3, and the switcher 3 into which output from the clamp type ammeter is input, connects the ultrasonic transmitting/receiving device to the ultrasonic sensors installed on the intermittent operation apparatus based on current generation in the power supply cable. COPYRIGHT: (C)2011,JPO&INPIT
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