The working principle and comparison of quartz flexible accelerometers and MEMS accelerometers

An accelerometer is a sensor which  is used to measure the acceleration of an object and is widely used in aviation, automobiles, mobile phones, smart watches and other fields. In the development process of accelerometer technology, Quartz Fexure Accelerometers (Quartz Accelerometers) and MEMS (Micro-Electro-Mechanical System) Accelerometers have become the two main technical routes.

The quartz flexible accelerometer adopts the principle of flexible deformation of quartz material, uses external force to act on the mass on the flexible arm to cause it to deflect, and measures the change in the deflection signal to determine the acceleration. Quartz flexible accelerometers have the advantages of high accuracy, high sensitivity, and high stability, but the manufacturing costs of Quartz accelerometers are high and they have large size compared with MEMS Accelerometer.

MEMS accelerometers use microelectronic mechanical system technology and use micro mechanical structures and electronic components to measure acceleration. MEMS accelerometers have the advantages of small size, light weight, low power consumption, and low cost, but their accuracy and stability are relatively low.

There are also certain differences in the application fields of quartz flexible accelerometers and MEMS accelerometers. Because quartz flexible accelerometers have high accuracy and stability, they are widely used in high-end fields such as military and aerospace. MEMS accelerometers are widely used in consumer electronics, automotive safety systems, sports bracelets and other fields due to their small size, low power consumption and low cost.

In general, there are big differences between quartz flexible accelerometers and MEMS accelerometers in terms of measurement principles, manufacturing processes, performance indicators, and application fields. Which accelerometer to choose needs to be comprehensively considered based on actual needs and application scenarios to achieve better results.