Full-localization distributed vibration measurement system

Abstract

The invention relates to a full-localization distributed vibration measurement system which is used for mechanical vibration monitoring of ship power equipment. The system mainly comprises a sensor, a single-point full-localization distributed vibration measuring device (charge type / voltage type), a vibration diagnosis panel and the like, and the single-point full-localization distributed vibration measuring device is developed based on an ARM processing chip and comprises an integrating circuit, an amplifying circuit, an A / D conversion circuit, a control system, a D / A conversion circuit, a direct current output port, an alternating current voltage output port and the like. According to the invention, the vibration value in the concerned frequency band of the ship power equipment can be reflected accurately in real time, and the precision is 2% of the full scale; the filtering frequency band can be conveniently and quickly adjusted according to the real ship operation condition and the vibration characteristic of the monitored power equipment; and the system can adapt to vibration sensors of different types and different sensitivities, and sensitivity calibration is convenient and fast.

Description

technical field [0001] The invention relates to a nationally produced distributed vibration measurement system, which belongs to the technical field of vibration monitoring. Background technique [0002] With the development of modern industry, ship power equipment is becoming larger, faster and more complex, and the resulting vibration and noise problems are becoming more and more prominent. Mechanical vibration is harmful in most cases, and vibration tends to degrade the performance of the machine, disrupt its normal work, shorten its service life, and even cause accidents. Mechanical vibration is also accompanied by noise of the same frequency, deteriorating the environment and endangering health. [0003] In order to improve the service life and reliability of ship power equipment, vibration measurement has become an important subject in ship engineering testing. Vibration monitoring of ship power equipment usually has many and scattered measuring points. The sensors u...

AI Technical Summary

Problems solved by technology

One is to transmit the vibration signal of mechanical equipment into microcomputer equipment such as industrial computer with a special data acquisition card, and write the driver program and analysis software in the microcomputer. The advantage of this test and analysis system is that it can realize the collection of large quantities of data and For rapid data analysis, the disadvantages are complex system structure, large volume, inconvenient to carry, complex wiring of measuring points, high requirements for cables and cable laying process

The other is a hand-held vibration test analyzer with a single-chip microcomputer as the core technology. Although this analyzer is small and easy to carry, it only has an AC voltage output port, which is only suitable for temporary data analysis. It does not have a DC current output port. Directly connected to data acquisition system or controller to realize long-term vibration monitoring

At the same time, most of the electronic components used in domestic and foreign vibration testing and analysis instruments or systems are imported devices, with low independent controllability

Images