DEVICE FOR EXCITING IMPACT MOMENTUM Russian patent published in 1994 - IPC

FIELD: test equipment. SUBSTANCE: device has power supply 1, capacitor bank 2, electro-mechanical force exciter 3, vibrational converter 4, matching amplifier 5, controlled phase shifter 6, phase inverter 7, the first and the second charge switches 8 and 9, the first and the second NOT gates 10 and 11, adder 12, start source 13, OR gate 14, the first and the second discharge switches 15 and 16. The following elements are introduced additionally: threshold element 17, the third AND gate 18, rectifier 19, filter 20, the third NOT gate 21, the first and the second commutators 24 and 25, sine signal generator 26, switch element 27, the second controlled phase shifter 28, the first and the second square-shaped signal formers 29, 30, phase switch 31, integrator 32, the first trigger 33, timer 34, the third charging switch 36, control unit 37, which has pulse counter 38, the second and the third triggers 39, 40, digital comparator 41, the third and the fourth commutators 42, 43, code setting registers 44, 45, the first and the second delay elements 46 and 47 correspondingly. EFFECT: widened area of application of the device due to capability of forming unlike polarity pulse sets. 2 cl, 1 dwg