About: http://webisa.webdatacommons.org/378175995

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	In use, the foam layers 40, 54 of the pressure sensors 30, 32 are slightly charged with a suitable fluid, for example air, and the conduits 46, 60 are connected to the pressure differential switch 86.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com