RT Journal Article SR Electronic T1 Using High-Technology Instruments to Assess Defects in Trees JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 297 OP 302 DO 10.48044/jauf.1998.037 VO 24 IS 6 A1 Giovanni Nicolotti A1 Paolo Miglietta YR 1998 UL http://auf.isa-arbor.com/content/24/6/297.abstract AB The technical features of instruments used to assess wood defects are described and opinions are expressed on their reliability, ease of use, and interpretation. The instruments include penetrometers, electrical conductivity meters, sonic and ultrasonic detectors, thermography, radar, and X-ray tomography.