FIELD: metrology.
SUBSTANCE: invention relates to metrology, in particular to methods of metrological assessment of processes occurring during thermal treatment of metals. Method of outputting audio information about a process involves attaching a flexible waveguide to the object to be processed, attaching an accelerometer on the waveguide and processing information using a computer. Accelerometer signal is recorded in form of time dependences of current values of signals in two frequency ranges from the beginning of exposure to the moment of amplitude drop of signals to the level of background noise. Envelopes of obtained relationships are selected, which are stretched in time by 50 or more times. As frequency ranges, in which time dependencies of current values of signals from the accelerometer are recorded, selecting those ranges in which, according to experimental data, the signal effective amplitude undergoes the greatest changes from pulse to pulse, new envelopes are used as modulating functions for corresponding selected carrier signals, modulated signals are differentiated amplified and separately supplied to a two-channel sound-reproducing device for action on the right and left ear of the operator accordingly.
EFFECT: shorter time and higher accuracy of setting operating modes of process equipment.
1 cl, 4 dwg
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Authors
Dates
2020-07-21—Published
2019-09-18—Filed