KONG Ling-wen, SHAO Ying-jian, YE Ling-yun. Optimization method of frequency characteristics of cantilever vortex flow sensor[J]. 2014, 33(8): 59-61+72.
KONG Ling-wen, SHAO Ying-jian, YE Ling-yun. Optimization method of frequency characteristics of cantilever vortex flow sensor[J]. 2014, 33(8): 59-61+72. DOI: 10.13873/j.1000-9787(2014)08-0059-03.
Aiming at problem that cantilever vortex flow sensor has low natural frequency
signal distortion is large in large flow measurement
factors that affect natural frequency are studied
and the method to improve natural frequency is proposed.Simulation results and experimental test show that the ratio of the length of cantilever respective length of the upper and lower part is the main factor which affects natural frequency.By optimizing these two factors
natural frequency of the sensor with 125 mm caliber is increased from 1 620 Hz to 2 880 Hz