Holoptics measures up

Holoptics, a new patented technique combining laser scanning methods and holography, will revolutionise non-contact dimensional measurement, developer Bristol Industrial & Research Associates claims. Its Holix gauge uses a spinning holgraphic disk instead of mirrors to create a laser scan. As well as being cheaper to make than standard gauges, it is also more accurate. The […]

Holoptics, a new patented technique combining laser scanning methods and holography, will revolutionise non-contact dimensional measurement, developer Bristol Industrial & Research Associates claims.

Its Holix gauge uses a spinning holgraphic disk instead of mirrors to create a laser scan. As well as being cheaper to make than standard gauges, it is also more accurate.

The holgram has 22 identical segments, compared with between two and eight sides on a typical polygon mirror. The result is a single-scan flaw detection rate of 1,833 times per second, with no degradation in performance from mirror wobble and no need for recalibration.