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High-precision Accelerometers Help Space Journey
Dec 18, 2018

In the eight-day space journey of the lunar flight tester, it mainly includes the earth-moon transfer orbit, the lunar near-steering, the orbital orbit, the moon and the earth, and the near-second cosmic speed (11.2 km/s). In the process of returning to the Earth and other key stages and links, speed control is a key factor in this process, and accurate measurement of the speed changes (ie acceleration) at each stage is the "housekeeping" ability of the accelerometer. The accelerometer components are well-known for every minute of acceleration that occurs in the tester, allowing its guidance, navigation, and control systems to accurately measure the speed and displacement of the aircraft and to track whereabouts.

High-precision accelerometers

There are many types of accelerometers, which can be divided into mechanical and solid according to their construction. Quartz flexible accelerometers are mechanical sensors - force feedback pendulum accelerometers, which are compact, reliable, high precision and wide dynamic range. Features. At the same time, the accelerometer is a powerful product that helps the Shenzhou series of spacecraft missions to ten wars, the spacecraft and Tiangong No.1 docking, and the No.3 precision moonfall. Moreover, compared with the No. 3 three-axis accelerometer, the accuracy of the accelerometer used in the lunar flight tester has increased by 20%, and the temperature working range has doubled.

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