The Edge Break Sensor
The edge break sensor is a compact handheld optical sensor prototype used by operators in the workshop environment to identify micron sized defects without the time consuming processing of taking a wax mold and measuring that mold on a profilemeter. The system was designed and built in partnership with a large industrial manufacturer and is undergoing field testing.
The handheld sensor captures surface profile information: it works by projecting a pattern of lines onto the region of interest and then capturing images of that pattern for evaluation with software. Using LED optics, this pattern in created by projecting a LED through a grating (shown in green). The grating sits on a piezo stage which moves to three positions.
A second optical channel includes a camera with a zoom and focusing lens (shown in red). This optical channel collects three images of the grating pattern. These three images are used by a software application to extract profile information.
|Measure radii max||0.050||Inch|
|Measure radii min||0.005||Inch|
|Measure straightness of facets||0.0005||Inch|
|Working Distance||Handheld, contact|
|Field of View at part||0.125||Inch|
|Supply Voltage||100 – 240 Volts AC/50-60 Hz|
|Sensor Tips Provided||Straight, right angle, fast change|
|Battery Backup||UPS with x hr capability|
|Sensor Size||8 x7 x 3 w/handle|
|Image and profile analysis platform||Windows XP PC|
|Sensor Controller||Windows XP PC|