About: http://webisa.webdatacommons.org/86038322

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	This invention relates to probe sensing apparatus, and in particular to a method and apparatus for detecting pre-contact between a grinding tool such as a laser, and an optics workpiece using acoustical emission and detection.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com