DEVICE FOR CHECKING OF DEFECTS IN ARTICLES MADE OF DIELECTRIC MATERIALS Russian patent published in 1998 - IPC

FIELD: measurement technology; defectoscopy. SUBSTANCE: device may be used for checking of defects in building materials with different degree of moisture-content and single-sided access to surface of material under test. Device has receiving-transmitting unit 1, antenna 2 and matching plate 3 positioned between antenna 2 and tested material 4. Matching plate 3 is essentially frothed dielectric with filler 6. Absorbing members 7 of which nonreflecting walls 8 are installed are positioned on face surfaces of plate 3. EFFECT: higher measurement results. 4 cl, 5 dwg