METHOD TO MEASURE BANKING ANGLE OF MISSILE THAT REGULARLY ROTATES AT BANKING ANGLE AND MISSILE BANKING ANGLE SENSOR FOR ITS REALISATION Russian patent published in 2013 - IPC F42B15/01 F41G7/00 G01B5/24 

FIELD: weapons and ammunition.

SUBSTANCE: in the method the banking angle is measured with a gyroscopic banking angle sensor and transformed into a signal close to a meander, with the repetition rate corresponding to 360°. This signal is formed at the outlet of the missile banking angle measurement device. The signal of the Earth magnetic field sensor on the missile with the repetition rate corresponding to 360°, in accordance with its polarity is transformed into rectangular oscillations. At the initial moment of time t₁ they exclude the first pulse of rectangular oscillations, and starting from the selected fronts of growth or decline of the second one, they measure durations of time intervals between them. Each measured value of the previous time interval T_i is memorised until the time of count end of the subsequent interval T_i+1, where i=2, 3, 4, etc. Duration of the time interval Δt is measured between the selected front of the second pulse of rectangular oscillations and a similar front of the nearest lagging signal, close to meander. The coefficient N=Δt/T₂ is calculated and memorised until the end of missile flight. Pulses are generated with durations τ_i+1=N·T_i, counted from the selected fronts of pulses of rectangular oscillations , starting from the third one. Time intervals T'_i+1 are measured between adjacent fronts of generated pulses corresponding to ends of each pulse with duration τ_i+1 and τ_i+2, and each previous value is memorised to the moment of end of measurement of the subsequent one. Pulses are produced with duration t'_i+2=T'_i+1/2, at the specified moment of time t₂ a switching signal is generated, which is used to disconnect a missile banking angle signal, close to meander, and a signal is connected with duration of pulses τ'_i+2 until the end of missile flight. The missile banking angle sensor comprises an electronic switch, a metre of time intervals, serially connected Earth magnetic field sensor and the second comparator, and also subsequently connected installation device, a time delay metre and a correcting signal generator.

EFFECT: exclusion of functioning time limitation and limitation of distance of controlled missile flight.

5 cl, 3 dwg