Abstract The cave strainmeter in Wuhan area is easy to be disturbed by air pressure, and the observation curve shows V-type and high-frequency jump. There is a linear correlation between the deformation of cave strainmeter and air pressure variation. Using MATLAB software, wavelet decomposition and STFT are used to analyze the time-frequency response characteristics of cave strainmeter disturbed by air pressure in Wuhan area. The results show that the NS component of cave strainmeter has the greatest influence in the frequency-band of 0.02-0.2 Hz, while the EW component is mainly affected in the frequency-band of 0.02-0.15 Hz.
Lü Lin,XIE Yangchun,SHU Deliang et al. Time-Frequency Response Characteristics of Cave Strainmeter Disturbed by Air Pressure in Wuhan Area[J]. jgg, 2023, 43(增1): 6-8.
Lü Lin,XIE Yangchun,SHU Deliang et al. Time-Frequency Response Characteristics of Cave Strainmeter Disturbed by Air Pressure in Wuhan Area[J]. jgg, 2023, 43(增1): 6-8.
