FIELD: physics, tests.
SUBSTANCE: device is intended for object analysis after natural or artificial magnetic impulse processing. Device includes impact effect source in the form of hammer with built-in Fresnel zonal screen, accelerometer with a pin, personal computer. Concave surface of accelerometer pin has radius=[0.2÷0.3]·d, where d is its diameter equal to 4.6÷5.0 mm, so that d/D=1/[4.8÷5.2], where D is diameter of zonal screen of source hammer. Personal computer can perform image analysis of current structural vibration spectre within frequency bands of f"мс"=17.825÷50.20 Hz, f"мр"=81.67956÷433.89 Hz, f"сд-о"=1899.66÷2674.25 Hz, during feedback to source, in this case with functioning results effect on functioning character, current and previous digitalised array of fast wavelet conversion in three bands of f"мс", f"мр", f"сд-о" by comparison operand. If results are repeated, comparison operand confirms membrane memory on structure vibrations of the last Langmuir film specifically, and radio emitter signal from built-in PC antenna damps hammer indicator over built-in receiving hammer antenna, and examination finishes. In the opposite case examination continues. Personal computer is intended for prediction of remaining resource ΔTpost-mip after artificial magnetic impulse processing according to indicated formula.
EFFECT: enhanced number of detectable objects.
30 dwg
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