| 摘要 |
PURPOSE:To enable to perform diagnosis only by the data normal operations, by providing upper and lower threshold values in sensors in a sensing device, taking the normal data when the sensed value from the sensing device is in the region within the threshold values. CONSTITUTION:A pressures sensor 10 is connected to an I/O 17 via an amplifier 15. A temperature sensor 13 is connected to the I/O 17 via an amplifier 16, and an operation condition sensor 14 for number of rotation, turbine loads, oil pressure, temperature, and the like is connected to the I/O 17. Said I/O 17 is provided to input the signals from said sensors to an computing device 18. The computing device 18 and a display and warning device 19 are connected to said I/O 17. The computing device 18 receives the value of temperature, pressure, and the like from each sensor as input data 100 via the I/O 17. The judgement as to whether the data lies within the range between the predetermined upper and lower thresholds is performed at steps 101 and 102. If the data is larger than the upper threshold or smaller than the lower threshold, the abnormality of the sensed value is judged, and the abnormality is warned and displayed on the display and warning device 19. |
