Laser Doppler Principle is used by Laser Surface Velocimeters (LSVs) to assess the laser light that is scattered back from a moving object. The LSVs from Polytec feature advanced detection circuits ...

A method of measuring wind velocities by a dual beam modification to conventional (non-Doppler) radars is described. The two beams are disposed slightly to either side of the antenna bore-sight axis.

Laser Doppler vibrometers (LDVs) measure vibrations in ways that other sensors can't. From large aircraft structures to microscopic MEMS sensors, and vacuum enclosures to red-hot mills, LDVs measure ...

ROCKFORD (WREX) – Doppler radar can be used for a lot of things, but occasionally something besides rain is captured. During times of severe weather, Doppler radar is a fundamental tool that ...

Vortex light carries orbital angular momentum (OAM) characterized by exp(ilθ), where θ is the angular coordinate and l is the topological charge (TC) 1. OAM beams have been widely used in a variety of ...