@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @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: . skos:member . skos:related . skos:narrower . sssom:subject_id . skos:related . dc:isVersionOf . rdf:type skos:Concept ; dce:identifier "SDN:L22::TOOL0461" ; dc:date "2012-02-16 10:05:14.0" ; dc:identifier "SDN:L22::TOOL0461" ; pav:authoredOn "2012-02-16 10:05:14.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "Unisense oxygen microsensor" , "Unisense oxygen microsensor"@en ; skos:broader , ; skos:definition "A miniaturized Clark-type dissolved oxygen instrument, including glass micro-sensors with minute tips (diameters ranging from 1 to 800 um). A gold sensing cathode is polarized against an internal reference and, driven by external partial pressure, oxygen from the environment penetrates through the sensor tip membrane and is reduced at the sensing cathode surface. A picoammeter converts the resulting reduction current to a signal. The sensor also includes a polarized guard cathode, which scavenges oxygen in the electrolyte, thus minimizing zero-current and pre-polarization time."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0461" ; skos:note "accepted"@en ; skos:prefLabel "Unisense oxygen microsensor"@en ; skos:related . sssom:object_id . skos:narrower . sssom:subject_id . sssom:object_id . skos:narrower . sssom:object_id . skos:narrower . sssom:subject_id .