Intelligent vibration monitor system

Abstract

An intelligent vibration monitor system relates to the field test, record and analysis system of vibration signals. The whole collecting function from analog signal input, floating point amplification and A / D quantization to data storage is realized through the following processes that: (1) the vibration signals generated in the test field are collected, (2) a signal collecting unit design realizes the basic circuit with the floating point amplification function, in the process, floating point amplification control logic carries out comparative analysis on signals and continuously emits gain control codes to a signal collecting unit so that the signal collecting unit amplifies the signals and completes digital quantization at the optimal amplification times, (3) after the signal collection with the floating point amplification function is realized, the data after the digital quantization is stored effectively and an FPGA embedded NIOS processor and an SDHC storage management logic designed in a FPGA are adopted to finish the read and write operation of an SDHC card together. The invention is an advanced device, with which self-adaption floating point amplification technology is applied to the vibration tester field.

Description

technical field [0001] The invention relates to a field testing, recording and analyzing system of vibration signals. Background technique [0002] Vibration signal monitors are developing towards digital automatic recording methods. Using the latest microelectronics integration technology, electronic circuit technology and computer technology, the vibration recorder is light, small, portable, powered by a battery, and has complete functions. The development of my country's early vibration self-recorder began in the early 1990s. It was used in blasting monitoring and large-scale electromechanical equipment vibration monitoring and other fields. Now there are many types of products, and it has developed into a situation of competition. Foreign products are also continuously entering the domestic market. . [0003] At present, most vibration self-recorders can basically meet the general vibration test requirements, but in terms of input signal dynamic range, small signal test ...

AI Technical Summary

Problems solved by technology

However, during on-site testing, it is often impossible to accurately estimate the magnitude of the vibration signal in advance, so it is impossible to ensure accurate setting of the range; it may be that the amplitude fluctuation range of the vibration signal is too large, resulting in signal over-range amplitude distortion, or the signal is too small, resulting in the inability to Identification and Data Processing

As a result, the test fails, the key data cannot be obtained, and it may cause a large test loss

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