This course will provide participants the advanced concepts and principles of Thermal/Infrared Testing (IR) as per the ASNT Recommended Practice No. SNT-TC-1A for Personnel Qualification and Certification in Nondestructive Testing.
Infrared thermography technique which is non-contact, nondestructive test method uses an infrared imaging to detect, display and record thermal patterns and temperature across the surface of an object.
Thermography can be applied to any situation where thermal profile and temperature will provide meaning data about a system or object. It is equipment which senses infrared radiation by converting it into temperature and displays image of temperature distribution.
This course is designed to provide participants with a detailed and up-to-date overview of the thermography and thermal imaging reports. It covers the nature of heat and temperature and how it is measured/expressed; the heat transfer modes covering the fundamentals of heat conduction, heat convection and heat radiation; the radiosity concepts comprising of reflectivity, transmissivity, absorptivity, emissivity, infrared radiometry, imaging, spatial resolution concepts and error potential in radiant measurements; and the basic thermal/infrared operating including the operation of infrared thermal imager and operation of support equipment for infrared surveys.
During this interactive course, participants will learn the checking of equipment calibration with blackbody references; the infrared image and documentation quality; supporting data collection and detecting thermal anomalies resulting from differences in thermal resistance (quasi-steadystate heat flow); detecting thermal anomalies resulting from differences in thermal capacitance, using system or environmental heat cycles; detecting thermal anomalies resulting from differences in physical state, fluid flow problems and friction; detecting thermal anomalies resulting from non-homogeneous exothermic or endothermic conditions; and the field quantification of point temperatures covering simple techniques for emissivity, typical high emissivity applications and special problem of low emissivity applications.
Sample Questions for general examinations are presented in the separate question booklets that can be obtained from ASNT International Service Center. Participants will further demonstrate familiarity with and ability to operate the necessary equipment for IR, record and analyse the resultant information to the degree required as well as test flawed specimen and component and analyse the results of NDT as part of the practical training.
At the completion of the course, participants will be appearing for a Level I exam. Each candidate will be a ‘Certified ASNT NDT Level I in Thermal/Infrared Testing’ upon successfully passing the examination with a minimum passing composite grade of at least 80 percent (%) which will be administered and graded by Haward Technology through its Certified ASNT Level-III instructors.