| 摘要 |
PURPOSE:To obtain a vibrometer capable of displaying an absolute level of a vibration by providing a vibration detection circuit, an amplifier circuit, an integration circuit, a detection circuit, an A/D conversion circuit, a microcomputer, a display circuit, etc., and integrating a sensor of the vibration with a display part of the vibration level. CONSTITUTION:An electrical signal in proportion to vibrational acceleration detected with the vibration detection circuit 1 is amplified with the amplifier circuit 2 and integrated with the integration circuit 3. Since an output signal from the integration circuit 3 is the A.C. signal having angular velocity omega, it is converted into the D.C. signal with the detection circuit 4. This D.C. analog signal is converted into the digital signal with the A/D conversion circuit 5 and outputted to the microcomputer 6. The microcomputer 6 samples data and averages the data of ten times of the sampling, for instance and operates the preset level of the vibration (one of the acceleration, velocity and displacement) of an object to be measured and displays 7 digitally the operated result.
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