Comparative analysis of VP type vertical pendulum tiltmeter in Shaanxi Province

Based on the observation data of VP type vertical pendulum tiltmeter at Qianling station, Xi’an station, Ankang station and Ningshan station in Shaanxi Province from January to December in 2020, the advantages and disadvantages of these observation data are discussed. Comprehensive evaluation is given by comparing and analyzing the solid tide records, data continuity, observation accuracy, correlation and earthquake reflecting efficiency of the observation data of the four stations.