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PSD Modules and Evaluation Electronics

Compact one or two-dimensional PSD modules with a mount for high-precision position measurements.

When it comes to precise and quick evaluation of the optical signals from position sensitive detectors (PSDs), PSD, amplifier, and evaluation electronics must be optimally matched to each other. On this page you will find complete modular systems with high resolution and low latency, which ensure that you obtain the desired results even with dynamic processes or weak light sources. They combine simple handling and reliable data transmission for precise data analysis or process control.

Series

PSD Modules and Evaluation Electronics

PSD Modules and Evaluation Electronics - SEEPOS and PSD Modules

High-Precision Position Detection in a Complete Package

To perform position measurements more easily, SiTek offers small and compact PSD modules. Either one-dimensional PSDs from 2.5 mm to 20 mm or two-dimensional PSDs with an edge length of 2x2 mm² to 20x20 mm² are integrated in a mount (PSD Holder MH01). These PSD mounts can be connected to the SEEPOS system using a DSUB9 connector and thus comprise a complete “plug&play” unit for high-precision position measurements. 

SEEPOS, from the company SiTek, is a signal processing system for one and two-dimensional PSDs. With this system, positions can be measured at a resolution of 16 bits and speeds of up to 1 MHz across a large power range – from the nW to the mW range – both for DC applications and with a modulated light source.  

With the software included in delivery, all parameters, such as PSD bias voltage, amplification, and the use of analog or digital filters, etc., can be set and monitored. Not only is the beam spot on the detector graphically represented in the XY direction, but the fluctuations in X-t and Y-t are shown as well. Optimized plot algorithms ensure that all data can be visually represented in full speed via USB 2.0 at the computer.

PSD Modules and Evaluation Electronics - Position Sensing Module

PSM System for Demanding Applications

The Position Sensing Module (PSM) combines a highly sensitive PSD with a low-noise amplifier and digital evaluation in a compact housing. It offers a resolution in the sub-micrometer range at sampling rates of up to 100 kHz. This is the ideal solution for dynamic measurement tasks in research, industry or manufacturing - in short, wherever speed and accuracy are required. 

The system works contact-free, is suitable for continuous motion analysis and enables real-time output of position data via USB. Thanks to automatic calibration, integrated filters and simple software operation, the PSM is ready for immediate use. 

Accessories

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SEEPOS - PSD Signal Processing System SEEPOS - PSD Signal Processing System
Preamplifiers for PSDs

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Manuel Herbst
Sales Account Manager / Active Components
Manuel Herbst
LASER COMPONENTS Germany GmbH
82140 Olching
Pierre Chazan
Senior Business Development Manager
Pierre Chazan
LASER COMPONENTS S.A.S.
92190 Meudon
Matthew Keverne
Technical Sales Engineer
Matthew Keverne
LASER COMPONENTS (UK) Ltd.
CM2 7PR Chelmsford Essex
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