Development of a novel scattered triangulation laser probe with six linear charge-coupled devices (CCDs)

Measurement technologies for precision positioning

“…However, such a system does not work well when the target has steep slopes or protruded profiles. Therefore, at least two detectors are used in a 3D triangulation system [199].…”

Metal forming beyond shaping: Predicting and setting product properties

“…Table 2 summarizes [157] X X X Laser triangulation [198] X X X Electronic speckle pattern interferometry [94,165] X X X Near field scanning optical microscopy [94,191] X X [34,111] X X Hardness measuring [214] X X X X Creep rupture test [135] X X Shear test [32] X X Plane torsion test [170,230] X X X Impact test [39,204] X X X-ray diffraction [77,99] X X X X Magneto-inductive testing [42] X X X Defects (cracks) and damage voids)…”

“…This technique bears on the measurement of elapsed time of laser light or the detection of different light intensities due to reflection [198]. As a result of using laser light in combination with fast data processing, this method is useable for an in-situ measurement.…”

Parallel determination of absolute distances to multiple targets by time-of-flight measurement using femtosecond light pulses

“…Such multi-DOF sensing is essential for diverse tasks such as attitude control of satellites in orbit [1,2], beam-line alignment of particle accelerators [3], and thermal stabilization of large machinery [4]. In practice, multi-DOF sensing is accomplished by means of triangulation [5] or multilateration [6,7] which employs multiple sensors so that each one measures distance or angle within a pre-set geometrical relation with others. Various sensors of diverse principles are available for the purpose, among which gravity-referenced inclinometers or gyroscopes are preferably used for angle measurements, while laser interferometers or optical time-offlight instruments are well suited for distance measurements in free space.…”