FORCE-MEASURING DEVICE FOR CONTROLLING CONNECTION QUALITY OF HIGH-TECH MODULAR SYSTEMS OF FULL-CONSTRUCTION BUILDINGS Russian patent published in 2017 - IPC G01L1/00 G01R1/00 

FIELD: measuring equipment.

SUBSTANCE: invention can be used for locking threaded joints (bolts, studs), as well as for measuring force and temperature in various threaded joints of building elements and structures, on the condition of which the emergency probability of building constructions of strategic importance depend. The force measuring device comprises a device for fixing the threaded rod, four resonators on the surface acoustic waves and a reader. The device for fixing the threaded rod comprises a nut, a threaded rod, a stop element in the form of a washer made of elastic material, a flat washer, a washer with a collar, a connected part, a hole in the form of petals, side walls and a force measuring washer. Each resonator contains a piezoelectric crystal, electrodes, tires, a set of reflectors. The fourth resonator contains a membrane. The force measuring washer contains transmit-receive antennas, high-frequency cables, surfactant resonators, a connecting layer, a soft elastic adhesive. The reader contains a master oscillator, power amplifiers, a duplexer, a transmit-receive antenna, multipliers, narrowband filters, high-frequency amplifiers, phase detectors, phase meters, a recording unit and an adder.

EFFECT: increasing the reliability of remote measurement of efforts and temperature in various threaded joints of building elements and structures and simplifying the design of the force measuring washer.

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