SYSTEM FOR OPERATIONAL CONTROL OF FAILURES IN DRIVING PILES Russian patent published in 1997 - IPC

FIELD: construction engineering. SUBSTANCE: this system can be also used in process of operating oil wells. For operational control of driving pile failures at preset impact energy of pile-driving hammer, system has pile movement sensor, first and second magnet-controlled contacts with magnets, key, low-frequency modulator, power unit, first antenna and third magnet-controlled contact mounted on hammer. Also provided are transmitter made in the form of carrier generator, first power amplifier, modulator key, pile number formation unit, first receiver made in the form of successively connected high frequency amplifier, narrow-band filter, demodulator, low-frequency amplifier, first and second information filters, first and second direct-current amplifiers and signalling unit. System also has second receiver made in the form of successively connected high-frequency amplifier, narrow-band filter, demodulator and low-frequency amplifier. Also arranged are data processing and recording unit, switchgear unit connected with second antenna, third antenna connected with input of high-frequency amplifier of second receiver. EFFECT: high efficiency. 8 dwg