| 摘要 |
FIELD: safety control. ^ SUBSTANCE: device has two or more similar vibration sensors which outputs are connected to filter inputs for selecting frequencies from sensor signals, supplying data about vibration oscillation changes after detecting cracks in a place under control. Filter outputs are connected to inputs of any kind of execution usable for smoothing sensor signals by multiplying them by proper weighting correction coefficient when object structural unit under control is found to be in good order. Compensating element outputs are connected to comparison unit of any kind of execution that compares vibration sensor signals, produced as a result of object functioning or independent vibration oscillation source action, to each other. ^ EFFECT: simplified low cost design. ^ 2 cl, 4 dwg |
