DEVICE FOR CONCRETE STRENGTH MEASUREMENT Russian patent published in 2023 - IPC G01N3/40 

FIELD: building structures.

SUBSTANCE: inspection of the technical condition of building structures. Device contains a striker and a piezoelectric sensor, the electrodes of which are connected to the inputs of a high-frequency filter, and the output of which is connected to the inputs of the frequency meter and the damping coefficient meter, and is equipped with a variable counterweight, a solenoid winding and an alternating electric current source. The striker is located in the solenoid winding connected to the source of alternating electric current. Accelerometer sensors are attached to the counterweight, registering changes in the impact acceleration of the striker and transmitting data to the measuring computer.

EFFECT: increased accuracy of concrete strength measurement.

1 cl, 2 dwg