A position sensitive device and/or position sensitive detector (PSD) is an optical position sensor (OPS) that can measure a position of a light spot in one or two-dimensions on a sensor surface.

PSDs are optoelectronic position sensors that utilize photodiode surface resistance. Unlike discrete element detectors such as CCDs, PSDs provide continuous position data, high position resolution, and high-speed response.

Various methods are available for detecting the position of incident light, including methods using an array of many small detectors and a multi-element detector (e.g., image sensor). In contrast to these, the PSD is a monolithic device designed to detect the position of incident light.

Position-sensitive detectors are photodetectors with which one can measure the position of a light spot in one or two dimensions, normally with a relatively high speed. The mentioned light spot is usually caused by a laser beam hitting the detector.

Thorlabs offers Position-Sensing Detectors (PSDs) that provide precise position measurements of incident beams. The PDP90A detector is a lateral effect PSD and utilizes a silicon photodiode-based tetra lateral sensor to accurately measure the …

Lateral-effect position-sensitive InGaAs photodiodes can detect light position across a wide spectrum from visible to NIR (400-1700nm) and provide spatial resolution along with output current proportional to position. They enable precision locating, tracking, and …

Position sensitive detector (PSD) has been extensively used in physics researches for particle detection. There are many kinds of PSD systems for charged particles and photons/lights from infrared, visible, to X-ray. The position decoding anodes, however, are relatively limited.

The CONEX-PSD position sensing detectors provides accurate XY position information of laser beams and are ideally suited for laser beam stabilization, laser tracking and general beam diagnostics.

2025年1月5日 · Discover position sensitive detectors for precise measurements, utilizing photodiode arrays and optical sensing technologies for accurate detection and imaging applications.

Varios position-sensitive detectors (PSDs) for position determination - a unbeatably fast method to measure the position of a light spot.