Theoretical Analysis and Experimental Research on the Installation Mode of Acceleration Sensor
Vibration noise is an important technical indicator of ship power equipment,and the accuracy of its test results will directly affect the quality and reliability of the product.Sensors are key components directly connected to the vibration testing system and the measured object,and its installation mode has a great influence on the accuracy of the measurement results.Taking the installation method of sensors as the research object,theoretical analysis and experimental research are conducted on the resonant frequency of sensor installation from the two aspects of the sensor installation base and its fixing method.By establishing the mechanical model of sensor installation mode,the influence of the performance parameters of sensor installation base and its fixing mode on the resonant frequency of sensor installation is analyzed,and the resonant frequency of sensor installation is negatively correlated with the mass of mounting base,and positively correlated with the contact stiffness of sensor.Under the testing conditions of specified frequency band vibration signals,experimental designs are conducted on common sensor installation base and its fixing mode.Through the comparison of 9 groups of tests,the best application range of different sensor installation mode is obtained,and suggestions for selecting sensor installation base and its fixing mode for different measurement frequency bands are provided.
acceleration sensorinstallation basefixing modemechanical modelinstallation resonant frequency
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