The Ultra High Resolution OSA (UHR-OSA) proposed by APEX Technologies remains a very important tool not only to measure the optical OFDM (Orthogonal Frequency Division Multiplexing) signal spectrums even with few tens of MHz spacing sub-carriers but also to adjust and adapt it to other modulation techniques. APEX-UHR-OSA incessant need in OFDM research area APEX UHR-OSAs have found a wide industrial and...
Knowledge Base
Welcome to the Lambda Knowledge Base
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Ultra High Resolution OSA for Characterising and interrogating Fibre Bragg Grating Sensors
The APEX Technologies Ultra High Resolution Optical Spectrum Analyser (OSA) can be used to measure the active/passive optical component insertion loss/gain thanks to the possibility to synchronise the internal Tunable Laser Source and the OSA sweepings. In this context, the APEX OSA remains a perfect tool to measure the Fibre Bragg Grating (FBG) Sensor reflection with 1 MHz of resolution... -
Why buying Stanford Research Systems from Lambda makes sense
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... -
Absolute Position Measurement: Multiwavelength-interferometry-based sensor redefines precision position metrology
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... -
Technical and Application Notes for the SRS BGA244 Binary Gas Analyser
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... -
How to use GPIO cameras with a PLC
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... -
What is USB 3.1?
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... -
Customer Testimonial: Researching the chemical nature of production faults
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... -
Functional conductive nanomaterials via polymerisation in nano-channels: PEDOT in a MOF
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... -
Compliant list for Baumer industrial cameras - USB 3.0
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




