Visual Testing (VT)

Visual inspection is a common method of quality control, data acquisition, and data analysis. Visual Inspection, used in maintenance of facilities, mean inspection of equipment and structures using either or all of raw human senses such as vision, hearing, touch and smell and/or any non- specialized inspection equipment. Inspections requiring Ultrasonic, X-Ray equipment, Infra-red, etc. are not typically regarded as Visual Inspection as these Inspection methodologies require specialized equipment, training and certification.

Remote Visual Inspection (RVI) refers to a specialty branch of nondestructive testing (NDT). RVI is an enhanced visual examination method that facilitates acquisition of visual data by means of visual aids including but not limited to video borescopes, push cameras, pan/tilt/zoom cameras and robotic crawlers. It is commonly used where distance, angle of view and limited lighting may impair direct visual examination or where access is limited by time,financial constraints or atmospheric hazards. RVI is commonly used as a predictive maintenance or regularly scheduled maintenance tool to assess the "health" and operability of fixed and portable equipment. RVI/RDVI enables greater inspection coverage, inspection repeatability and data comparison.

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