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　　As the backbone of the space infrastructure, satellites play an indispensable role in exploring and understanding space, providing communication and navigation services, and carrying out scientific and technological research. The accuracy of satellite shell thickness measurement is closely related to the safety and stability of space infrastructure, and has always been one of the key indicators to measure the performance of satellite shell manufacturing equipment. In recent years, with the continuous development of space technology and the application of new materials, the accuracy requirements of satellite shell thickness measurement have become more and more stringent, and the technology of thickness measurement has become more and more mature. In this paper, the development of satellite shell thickness measurement technology is summarized from three aspects: online measurement technology, offline measurement technology and non-destructive testing technology.

　　传统的卫星壳厚度测量技术主要以离子束切割技术为主，以精密测量仪器来测量卫星壳的厚度，并对其进行精确的测量。然而，这种技术存在一些缺陷，如对卫星外壳表面的质量要求较高，且制造成本较高。为了解决这些问题，科学家们开发出了一种新的卫星壳厚度测量技术，即在线卫星壳厚度测量技术。

　　The traditional satellite shell thickness measurement technology is mainly based on ion beam cutting technology, with precision measurement instruments to measure the thickness of satellite shell and make accurate measurement. However, this technology has some defects, such as high quality requirements for satellite shell surface and high manufacturing costs. In order to solve these problems, scientists have developed a new satellite shell thickness measurement technology, namely online satellite shell thickness measurement technology.

　　在线卫星壳厚度测量技术是通过对卫星壳进行加工来进行实时测量的一种技术。该技术主要应用于卫星壳的成型和加工，通过对卫星壳的振动信号和振动特性进行分析，可以对卫星壳的厚度进行实时测量。目前，该技术已经被广泛应用于卫星壳的制造领域。

　　Online satellite shell thickness measurement technology is a technology that measures satellite shell in real time by processing satellite shell. This technology is mainly used in satellite shell molding and processing. By analyzing the vibration signal and vibration characteristics of satellite shell, the thickness of satellite shell can be measured in real time. At present, this technology has been widely used in the field of satellite shell manufacturing.

　　非破坏性测试技术是目前卫星壳厚度测量技术中应用最为广泛的一种技术。非破坏性测试技术主要应用于已制造好的卫星外壳的厚度测量，通过对卫星壳的物理和力学特性进行测量和分析，可以对卫星壳的厚度进行精确测量。非破坏性测试技术主要应用于激光测厚仪、超声波测厚仪和成像技术等技术。

　　Non-destructive testing technology is currently the most widely used technology in satellite shell thickness measurement technology. Non-destructive testing technology is mainly used in the thickness measurement of manufactured satellite shell. By measuring and analyzing the physical and mechanical characteristics of satellite shell, the thickness of satellite shell can be accurately measured. Non-destructive testing technology is mainly used in laser thickness gauge, ultrasonic thickness gauge and imaging technology.

　　随着科技的不断发展和进步，卫星壳厚度测量技术也在不断进步和发展，为了满足不断提高的卫星外壳厚度精度要求，科学家们开发出了一种新的卫星壳厚度测量技术，即在线卫星壳厚度测量技术。