| 摘要 |
The invention relates to a method and an arrangement for controlling the range of a projectile propelled by a rocket motor. An actual value of a quantity clearly correlating with the distance covered by the projectile is continuously determined during the propulsion. The actual value thus determined is continuously compared with a predefined set-point value, which for the projectile in question corresponds to a predetermined range. When the actual value has been found to be at least equal to the set-point value the propulsion capability of the rocket motor is instantaneously terminated. The arrangement according to the invention comprises a calculation element arranged outside the projectile and preferably stationary, which is designed on the basis of a predetermined range and using known mechanical correlations to calculate a set-point quantity corresponding to the predetermined range. Located on board the projectile are a memory element designed to store the set-point value transmitted from the calculation element, an element measuring the acceleration of the projectile after firing, a second calculation element connected to the acceleration measuring element and designed to continuously calculate an actual range value from the acceleration, a comparing element designed to continuously compare the range set-point quantity with the actual range value and to terminate the propulsion capability of the rocket motor instantaneously when the actual value is at least equal to the set-point value. <IMAGE> |
