Knowledge Base

For 30+ years Lambda Photometrics have represented Stanford Research Systems (SRS) in the UK as SRS’s authorised UK distributor and service centre with unparalleled experience of supporting their products. To ensure best value for money some companies require several quotes to satisfy their organisation’s purchasing policy. In order to clarify any confusion over comparisons between Lambda’s pricing and SRS’s International...

An absolute position measurement system has a noise floor of less than 0.02 nm/√Hz over a range of 1.2 mm. Measuring to the nanometer scale is no small feat—getting there takes careful engineering and a fundamentally good sensor. The sensors used for stage position feedback inside semiconductor lithography tools regularly achieve this level of precision. Zygo has supplied displacement measuring...

Stanford Research Systems BGA244 The BGA244 Binary Gas Analyser from Stanford Research Systems (SRS) is a new product harnessing the fundamental physical principles of acoustic resonance to measure the speed of sound in a gas mixture and provide gas ratio measurements with errors as low as 100ppm. This technique has advantages over conventional thermal conductivity binary gas analysers with...

General purpose I/Os (GPIOs) enable the use of a pin as an input as well as an output. When using cameras with GPIOs with a PLC, you will meet the challenge that the output signal of the GPIO is not high enough to give a switching signal to the PLC. One solution to overcome this issue is to use a...

Considerable time has passed since the finalisation of USB 3.1 specification in August 2013 where an announcement was made that it would double USB 3.0 theoretical transfer speeds to 10 Gbps and support scalable power delivery of up to 100 Watt using the USB Power Delivery spec. Here is the clarification of current situation: Quick points about USB 3.1 USB 3.1, at the moment, has...

Mosa creators of award-winning, leading edge, high tech tile for walls, floors and terraces, began barely a year ago to work with SEM, an advanced electron microscopy technology. In that short space of time, however, the device that is the size of an old PC has proved its effectiveness, helping Mosa achieve a significant step in its efforts to research the chemical nature...

Tiesheng Wang, Meisam Farajollahi, Sebastian Henke, Tongtong Zhu, Sneha R. Bajpe,a Shijing Sun,a Jonathan S. Barnard, June Sang Lee, John D. W. Madden, Anthony K. Cheethama and Stoyan K. Smoukov Reactions inside the pores of metal–organic frameworks (MOFs) offer potential for controlling polymer structures with regularity to sub-nanometre scales. We report a wet-chemistry route to poly-3,4-ethylenedioxythiophene (PEDOT)–MOF composites. After a twostep removal...

The equipment listed below has been tested successfully with the following Baumer camera models featuring the USB 3.0 interface. Products VCXU cameras VEXU cameras MXU cameras VLU cameras PXU cameras   Click here for more information

The equipment listed below has been tested successfully with the following Baumer camera models featuring GigE interface. Products VisiLine® cameras VisiLine® IP cameras HXG cameras SXG cameras TXG cameras LXG cameras EXG cameras VCXG cameras MXG cameras VEXG cameras   Click here for more information

Chromatic-dispersion Based on complex spectral analysis of the optical field, the Apex Technologies Optical Complex Spectrum Analyser AP2441B/AP2443B is able to measure the chromatic dispersion and the group delay of a transmission line. This paper is dedicated to explain clearly the measurement method of two examples of a 13.2 km standard Single Mode Fibre (SMF) length using a 10 Gb/s...