Flying spot laser triangulation scanner using lateral synchronization for surface profile precision measurement
For aim inspection and quality management, high-speed surface profile calculation with high accuracy is critical. A laser scanner is suggested in this report, based on a single point laser triangulation displacement sensor and a high-speed spinning polygon mirror. In order to overcome the trade-off between the field of view and the accuracy of the range, which is the inherent weakness of traditional triangulation, the autosynchronized scanning scheme is applied. There are excellent characteristics of lateral coordinated flying spot technology, such as programmable and broader field of vision, strong tolerance to ambient light or secondary reflections, high optical signal-to-noise ratio, and minimal shadow effect. High precision and superior data accuracy are achievable when calculating artifacts with differing surface properties, including in difficult applications thanks to automated point-to-point laser power regulation. Using a laboratory-built prototype, the proposed laser triangulation scanner is tested and functional considerations for device design and implementation are defined, including the method of speckle noise reduction and real-time signal processing. A procedure is often developed for fast and precise calibration of the laser triangulation scanner using lookup tables, and the precision of the device calibration is normally lower than ±0.025\x2009;\x2009;mm. For quick surface profile accuracy calculation, experimental findings are introduced and demonstrate a wide implementation prospect.
Fast and noninvasive fluorescence imaging of biological tissues in vivo using a flying-spot scanner – PubMed
Spot scan for thicknesses, topography and lateral/vertical alignment
The Flying Spot Scanner (FSS) from Precitec allows high-speed OCT imaging for thickness which topography, and can be combined to construct a smart inspection device with numerous CHRocodile 2 IT sensors. The FSS features innovative one-of-its-kind technologies allowing high-speed non-contact field inspection on a wide variety of materials and surfaces for inline and offline quality assurance and 3D measurement.
Analog TV signals are a lovely order and coordination exercise, because when the white dot tracked its path across the glass back in the day on the old CRT TV, it must have done so in obedient adherence to the matching electron beam in the studio camera. But the camera may not have been the only way to create an image, with a lens and a light-sensitive scanning camera tube. The flying-spot scanner drew a raster with a white dot of light over its subject, normally celluloid film, and captured the result with a single photocell to create a video signal. In this scanner, the “dot” is a square of white pixels that is passed across the scene, while the sensor is a photoresistor that is read by an Arduino that transfers the data to a PC. The ever-resourceful[Niklas Roy] has designed one using a video projector. The entire is placed in a booth in front of which the subject places himself and covers his head with a sheet. Since the photoresistor is hardly the strongest sensor, it’s a sluggish operation, and a portrait really takes 83 seconds.
Using the RCA Photocell Cabinet, we have completed development of a functioning flying spot scanner camera. Museum guests will see their mates as they might have looked in 1930 on mechanical TV.
Flying spot scanner