{"tema_id":"1830","string":"standard large aperture radiator           #02108","created":"2022-12-19 09:13:40","code":null,"notes":[{"@type":"Scope note","@lang":"en-EN","@value":"If the thermographic instrument has a large instantaneous field of view angle, an angular dimension of the standard reference radiator should be wide enough to cover the instantaneous field of view of the thermographic instrument. "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R141:2008 2.4 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 02108 "},{"@type":"Definition note","@lang":"en-EN","@value":"standard radiator (i.e. a reference radiator), whose angular dimensions are at least ten times larger than the instantaneous field of view of the thermographic instrument "}]}