DETONATION GAUGE Russian patent published in 1995 - IPC

FIELD: engine building. SUBSTANCE: detonation gauge has base 2 and fitting member 8 which are enclosed inside electric-proof case 1. Base 2 is made in form of bushing provided with flange 3. Piezoelectric element 4 with current collector 5 disposed at its lower plane, inertial weight 6 and spring 7 are mounted in sequence from down to up. Lower end of spring 7 is mounted onto top plane of inertial weight 6. Electric connector 9 with two current taps 10 and 11 are formed onto case 1. The first current output 10 is connected with current collector 5. Electric-insulating distance sleeve 12 is introduced between current outputs 10 and 11. The sleeve embraces piezoelectric element 4, inertial weight 6 and spring 7. Inertial weight 6 and spring 7 are electric-conducting. The second current output 11 is disposed between top end of spring 7 and fitting element 8. Piezoelectric element 4 is hugged by the first current output 10. Disk spring 7 is mounted with its smaller-diameter base onto inertial weight 6. The second current output 11 and spring 7 are made together. Case 1 is made of thermosetting plastics. EFFECT: improved efficiency. 5 cl, 2 dwg