Electronic system design of ultraviolet ozone vertical profile probe for aerography satellite

The design of ultraviolet ozone vertical profile probe is illustrated and the electronic system is introduced in detail. The device is a compact, high precision, ultraviolet-vacuum, ultraviolet spectral radiometer, and is used to measure atmospheric solar backscattering spectral radiance and solar spectral irradiance. Noise of the system is analyzed and Numeric accumulation and synchronous demodulation was used to decrease the noise and the zero-drift of the instrument. The solar irradiance at altitude 830 km in 160-400 nm and the backscattering solar spectral radiance in the ultraviolet ozone absorption band at 12 wavelengths from 250 nm to 340 nm are obtained. Test results on orbit show that all the requested function is met successfully and the performance is stable.