大阵列BIB探测器由于其高量子效率和低暗电流而成为广泛的研究对象，特别是在空间应用方向。如2021年发射的詹姆斯韦伯太空望远镜，它已经进行了许多重要的天文观测。一个稳定、高效、轻量化的液氦温区低温系统对BIB探测器的运行至关重要。氦节流制冷机可取代传统的大容积液氦杜瓦，能满足空间液氦温区的制冷要求。为了同时提高4.2 K的制冷量并减轻重量，提出了一种0.3 W@4.2 K的大冷量轻量化的4.2 K低温制冷系统。并且在现有0.1 W@4.1 K制冷量的低温系统上进行实验，验证了该系统的设计方法。在不同的冷却温度区采用不同的冷却方法，以实现冷却的高效性和轻便性。开发了一个新的集成斯特林制冷机，在80 K时提供高效的一级预冷，制冷量为15 W，重量仅为4.5 kg；二级预冷采用主动活塞调相的15 K脉管制冷机，制冷量为0.9 W。此多级低温制冷系统通过耦合氦气JT循环，可以在4.2 K时提供0.3 W的制冷量，输入功低于1.8 kW。此系统将为正在快速发展的红外天文观测所需的空间BIB探测器提供保障。

高阶主动振动抑制技术已逐渐应用于针对空间红外用机械制冷机的多阶次振动， 用以提升制冷机的工作寿命和红外载荷的工作性能。在对机械制冷机采用高阶次工作频率驱动时会产生很严重的谐波失真，从而影响对于高阶次振动的主动抑制效果。通过分析驱动电路的工作机理和负载的高频特性，针对性地提出了利用控制续流通路用于改善高阶驱动时谐波失真的方法，根据所需续流通路给出了相应的实现方法。并针对其中一种续流方法，通过仿真与实验验证了该方法可以有效地抑制波形畸变，使其各高阶次谐波失真下降了75%以上。

To measure the global atmospheric three-dimensional distribution and change of temperature and humidity is one of the key areas in atmospheric remote sensing detection; it is also a new research and development direction in the field of meteorological satellite application. As a main element of China second generation of geostationary meteorological satellite Fengyun 4 (FY-4), which was launched on Dec. 11, 2016, the Geostationary Interferometric Infrared Sounder (GIIRS) is the first interferometric infrared sounder working on geostationary orbit internationally. It is used for vertical atmospheric sounding and gains atmospheric temperature, humidity, and disturbances. The combination of Fourier transform spectrometer technology and infrared detectors makes GIIRS have high spectral resolution and large coverage over spatial areas. With this kind of instrument, meteorological satellites can improve the capabilities for severe weather event monitoring and numerical weather prediction. Here a concise review of the GIIRS development project, including its history, missions and functions, technical design, key technologies, system integration, calibration and in-orbit operation status, etc., is presented.