About: http://webisa.webdatacommons.org/133525489

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	Also as will become clear from the development of the servo equations, position sensors such as potentiometers are required at certain of the gimbals.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com