Excel VBA Processing of Acoustic Emission Energy and Event Parameters

1. Acoustic emission data format
2. Run Excel vba code
3. User interactive input start and end time
4. Processing results

Acoustic emission energy and event parameters are basic acoustic emission parameters, which are widely used in rock acoustic emission experiments. Among them, the acoustic emission energy parameter is divided into energy rate and cumulative energy, and the event parameter is divided into event rate and cumulative event number. The definition of each acoustic emission parameter is as follows:
Acoustic emission energy release rate: the energy released by acoustic emission per unit time; Acoustic emission cumulative energy: Accumulation of acoustic emission energy over time; Acoustic emission event rate: Acoustic emission event occurrence per unit time times; cumulative total number of events AE: AE event accumulation over time the number ¹ .
Among the four parameters, the acoustic emission energy rate and the event rate are state parameters; the cumulative energy and the total number of cumulative events are process parameters, and the four parameters can fully reflect the acoustic emission change information during the rock loading process.
Generally, the acoustic emission data is acquired by an acoustic emission probe, and various acoustic emission parameters are obtained through processing. This article uses Excel vba to process it, and the specific process is as follows.

1. Acoustic emission data format

Open the sys-1 worksheet of'sy-1.xls', and the data format is shown in the figure below

2. Run Excel vba code

Press Alt+F11 to open the vba running interface, copy and paste the code of'Acoustic Emission Channel 4 General Program.txt'. Place the cursor in the red box and press F5 to run the program.
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