About: http://webisa.webdatacommons.org/361507544

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The reference voltage is derived by potentiometer 193 coupled between the output of the sample average 192 and a reference voltage, such as ground, as shown.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com