@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . rdf:type skos:Concept ; dce:identifier "TOOL0083" ; dc:identifier "TOOL0083" ; dc:isVersionOf ; pav:authoredOn "07-JUN-19" ; pav:version "2" ; owl:versionInfo "2" ; skos:altLabel "Eppley PIR Pyrgyometer" ; skos:definition "The Eppley Precision Infrared Radiometer (PIR) pyrgyometer measures longwave (infrared) radiation. It is housed in a weatherproof titanium canister that has been painted with a very flat black paint that absorbs radiation. A small glass dome at the top of the instrument is covered with an 'interference coating' which allows only infrared radiation to come through. Light levels are detected as temperature changes creating voltages in fine wire coil detectors." ; skos:notation "TOOL0083" ; skos:note "accepted" ; skos:prefLabel "Eppley Precision Infrared Radiometer Pyrgeometer"@en .