Improving analytical precisions of software used in condition monitoring systems
Tang Xi-kuan · Journal of Tsinghua University(Science and Technology) · 1998
The software is one of the important parts of the condition monitoring system. It is very necessary to improve the precision of signal analysis. A phase error compensation algorithm is deduced, which is caused by the multi channel cycle sampling. A concept of orbit smoothing is presented under the circumstance that full cycle trigger can not be obtained but non full cycle trigger has to be used. In some monitoring processing, the transition from the signal of velocity or acceleration to that of displacement or velocity is needed. In order to decrease the cost of the monitoring system, a software integrate method was used instead of the hardware integrate. These measures above have well been applied to the rotating machine condition monitoring system TD800, and have certain practical value to improve the software analysis precision.