FIELD: measurements.
SUBSTANCE: invention is intended for measuring concrete strength and comprises a striker and a piezoelectric sensor, the electrodes of which are connected to the inputs of a high-frequency filter, the output of which is connected to the inputs of a frequency meter and a damping coefficient meter, equipped with a variable mass weight, a solenoid winding and an alternating electric current source, whereas the striker placed in a solenoid winding connected to an alternating electric current source, equipped with an accelerometer sensor that registers the speed and acceleration of the propagation of mechanical vibrations in a concrete sample.
EFFECT: increased accuracy of measuring the strength of concrete.
1 cl, 1 dwg
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|---|---|---|---|
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|
RU2791836C1 |
| DEVICE FOR CONCRETE STRENGTH MEASUREMENT | 2023 |
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| 0 |
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| METHOD OF DETERMINATION OF CONCRETE STRENGTH | 1993 |
|
RU2065608C1 |
