Quartz pendulum is the core device of quartz flexible accelerometer, which plays the role of sensitive acceleration, and the material is class IV quartz glass material, which has the characteristics of small linear expansion coefficient, low energy consumption and high chemical stability. Quartz 7980 .7979 is currently available for pendulum substrates.
 
             
                         
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                         
                                         
                                        
