With the development of low-cost inertial systems, a new type of non-liquid floating so-called dry accelerometer began to appear in the mid-1960s. Because this instrument uses flexible support technology, it is called quartz flexible accelerometer, and its structure and process are greatly simplified. This kind of quartz flexible accelerometer has been widely used in various modern inertial systems.
Quartz flexible accelerometer with high precision, high stability, high temperature, small size and so on, is the physical sensitive measurement control products, including acceleration, speed, distance, swing, vibration, tilt, etc. According to these characteristics are used for inertial navigation and guidance.
So what are the features of thequartz flexible accelerometer?
1. The flexible strut is made of whole quartz material, without hysteresis, friction, elastic aftereffect, aging and deterioration not affected by temperature
2. It does not require temperature control to match the properties of the quartz material with the low expansion alloy.
3. It is not affected by temperature change by using the gas film damping
4. The signal is insulated from the shell so that the work does not cause influence and interference.
5. The torque device is used as magnetic steel for the push-pull of the torque device. Therefore, the magnetic stability and the torque rate are large, the time constant is small, and the thermal stability is good.
6. The differential capacitive sensor has a good shielding method because of its small size and high sensitivity
7. The design of servo circuit is advanced, integrated and reliable
8. The power level constant current output can change the sampling resistance to adjust the scale factor in the larger range
9. A large amount of adhesive technology has good reliability and environmental resistance, so it has high requirements for adhesive materials and adhesion process
10. In the servo circuit, the double voltage power supply, the triangular wave transmitter and the various terminal terminals are used for self-check, offset compensation and calibration, so it is convenient to use.
The quartz flexible accelerometer uses high-quality quartz crystals to achieve high precision acceleration measurement with extremely high reliability and stability. Its special flexible construction enables it to adapt to high acceleration applications under various environmental conditions, such as high temperature, high pressure and high vibration environments. For example, High Performance Quartz Accelerometer ER-QA-03 A bias repeatability :10-50ug, scale coefficient repeatability :15-50ppm, Class II nonlinear repeatability :10-30μg/g2, and can work at -45°C~85°C environment.
In addition to being widely used in aerospace and military fields, quartz flexible accelerometers are also widely used in automotive, medical and scientific research fields. In the automotive sector, they can help automakers improve the performance and safety of their vehicles while improving their fuel efficiency. In the medical field, quartz flexible accelerometers can be used to monitor and diagnose human movement and physiological processes. In the field of scientific research, they can be used to study earthquakes, crustal movements, cosmology, and microgravity environments.
More Technical Questions
1.Calibration Method of Accelerometer
2.Quartz Accelerometer VS MEMS Accelerometer
3.MEMS Accelerometer Packaging Technology
4.How to Improve the Long-term Stability of the Quartz Accelerometer?
5.What are the Advantages and Disadvantages of Quartz Accelerometers?
6.What Effect Does Temperature Have on Quartz Flexible Accelerometer?
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