Angular accelerometer for bench microvibration testing of high-precision guidance and stabilization system for line-of-sight of science hardware

The article describes the angular accelerometer developed for bench tests and development testing of high-precision guidance and stabilization systems for science hardware line-of-sight. Consideration is given to known structures and measurement designs for one-component angular accelerations. It is shown that only converters with proven metrological properties shall be used for high-precision measurements of microvibration parameters of science hardware. The developed accelerometer is intended for one-component measurements of angular vibration parameters when exposed to multidimensional vibration from units of arc seconds and higher within the frequency range from fractions to several hundreds of Hertz. The accelerometer was used in investigations of microvibration of two-axial guidance platform «Monitor» in ground conditions on a specially designed desaturation bench before its installation on the Russian Segment of the International Space Station.