About: http://webisa.webdatacommons.org/395068747

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 control means maybe oscillator-based so that an external influence, such as pressure, will change the tuning of the oscillator or of a filter receiving the output signal of the oscillator.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com