Portable visual ship equipment structure vibration tester

Abstract

The invention relates to a portable visual ship equipment structure vibration tester, which is characterized in that a power supply management module, a sensor module, a signal conditioning module, anA / D conversion module, an FPGA module, a liquid crystal display module and an external expansion data memory are integrated into a whole to form the portable vibration tester; wherein the power supply management module comprises a reference voltage supply unit and a charging unit; the sensor module converts the vibrated signal into a voltage signal and inputs the voltage signal into the signal conditioning module; the signal conditioning module amplifies a weak signal input by the sensor module and provides a signal for A / D conversion; the A / D conversion module converts an analog signal inputby the signal conditioning module into a digital signal for the FPGA to perform data processing; the FPGA module is used for processing vibration signals and transmitting processed data to the liquidcrystal display module and the external expansion data memory. According to the invention, rapid test and analysis of structural vibration of ship equipment can be realized.

Description

technical field [0001] The invention relates to a structural vibration tester for ship equipment, in particular to a portable visual tester for structural vibration of ship equipment. Background technique [0002] At present, the acquisition and analysis of ship equipment vibration at home and abroad are mainly based on general vibration measurement systems and hand-held vibration analyzers. The general vibration measurement system includes acceleration sensor, dynamic signal acquisition and analysis system, computer, low noise cable and other necessary accessories. For example, a real-time ship vibration monitoring system was built using CPLD and DSP as the core, and a vibration system acquisition network was built using CAN bus. After the vibration data was collected by AD, FFT transformation and FIR filtering were performed in DSP, and the processed frequency domain data sent to the CAN bus. In addition, an embedded ship vibration monitoring system is built based on ARM...

AI Technical Summary

Problems solved by technology

The vibration test system is complex and bulky, and requires the hull to supply power to the test equipment. The layout of the test cables is cumbersome, and it has high professional technical requirements for the test personnel. Therefore, it is necessary to use the general vibration test system for the vibration test of ship equipment. limitation

Images