The setting of the blasting vibrometer is crucial for obtaining the correct vibration waveform. The range selection is too small, because the actual vibration amount is relatively large. Because the resolution of the 16-position blasting vibrometer is low, the range setting is set during the field test. To improve the resolution, such as a blasting vibrometer with a full-scale of 30cm/s, set the range to 3cm/s. Since the number of resolution scales is unchanged (65536), the number of ticks originally distributed at 30cm/s is set to 3cm. Within /s, this unit amplitude gains more resolution scales and achieves the resolution required for vibration amplitude testing.
The setting of the blasting vibrometer is crucial for obtaining the correct vibration waveform. When the range selection is too small, the actual vibration amount is relatively large, so that the recorded blast vibration waveform is peaked, thus losing the peak vibration speed and measuring the range. When it is too large, because the actual vibration amount is relatively small, the vibration waveform is small serrated, the test accuracy is lowered, and it is difficult to distinguish the difference variations of different amplitudes, and it is not convenient to perform other analysis processing.
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