As we all know, there are a lot of high-tech technologies used in aerospace, and a small mistake may cause incalculable losses, so in aerospace, what are the applications of laser displacement sensors? What can be achieved. The following Liyi technology Xiaobian will introduce it to you:

1. Determine the Earth's gravitational field model and its temporal variability

The laser displacement sensor adopts the principle of laser triangle reflection, fast scanning speed, can provide excellent image effect and reliable measurement results, and its measurement blind area is small, which helps scientists to accurately calculate the Earth's gravitational constant GM in the study of the position change of the Earth's centroid. The model of the Earth's gravitational field and the seasonal variation of the low order spherical harmonic coefficient of the Earth's gravitational field are measured accurately by using laser satellites with different orbital inclination and altitude. At the same time, the laser displacement sensor ‍ also obtains the periodic change of the position of the earth's centroid, including seasonal and interannual changes, and the change of the earth's gravitational field reflects the complex movement and interaction process of the earth's interior and various layers (including ocean, atmosphere, groundwater, ice sheet, etc.). The laser displacement sensor ‍ has important research value.

2. Global tectonic plate movement

Using the long-term observation data of the laser displacement sensor ‍, the geocentric coordinates of the ground station can be accurately determined. The calculation of the coordinates of the high-precision station makes it possible to monitor the plate movement. Using data obtained from the laser displacement sensor ‍, station speeds and the rate of change of baselines between stations have been estimated for dozens of stations. If the station is located on the rigid part of the plate, the station speed represents the plate motion. The relative motion between the plates can be calculated by using the change rate of the station base line and the station speed.

The laser distance sensor can fragment the information and then integrate it to achieve the determination of distance, and the error obtained by this sensor is relatively small. In the future aerospace development, orbit early warning is needed as the main breakthrough, so even if the laser distance sensor can not independently carry out the scientific detection work of the satellite in the future, there are still some problems in the process of satellite orbit identification Great application value.

After listening to the introduction of "What are the applications of laser displacement sensors in aerospace", I believe that I have a general understanding of the application of laser displacement sensors in aerospace. For more information, please follow us.