Solution Science for Research and Industry

Posts tagged “measurement

November 2018 newsletter now online

November 2018 NewsletterThe Elliot Scientific November newsletter is now available. In this issue a new digital micromirror device (DMD) is announced by Prizmatix for targeting light, and we also show off their UHP-M light source, both for microscopy; Lake Shore Cryotronics distributed cryogenic temperature sensing systems get a mention, along with IPG‘s ultrafast lasers; and we finish off with how capacitance measurement equipment from Andeen-Hagerling can help in a huge variety of research and industrial applications.

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From near absolute to over one thousand degrees – Lake Shore have a sensor to suit

With the UK’s record breaking hot weather continuing, we thought you might like to know that Lake Shore Cryotronics offer four types of sensor for temperature measurement:

Diodes
A diode temperature sensor is the general name for a class of semiconductor temperature sensors. They are based on the temperature dependence of the forward voltage drop across a p-n junction. The voltage change with temperature depends on the material. The most common is Silicon, but Gallium Arsenide (GaAs) and Gallium Aluminium Arsenide (GaAlAs) are also used.

Resistors
These sensors are based on the change of resistance with temperature, and can be classified as positive temperature coefficient (PTC) or negative temperature coefficient (NTC). Platinum RTDs are the best example of PTC resistance sensors.

Capacitors
Capacitors are also used for low temperatures, but usually not for temperature measurement. Capacitance temperature sensors have the advantage of being insensitive to magnetic fields, but they commonly experience calibration shifts after thermal cycling.

Thermocouples
Thermocouples are only useful where differential temperature measurements or low mass are the main consideration. They must be calibrated in-situ as the entire length of the wire contributes to the output voltage if it traverses a temperature gradient.

Each type sensor has its own particular advantages in terms of temperature range and response, as well as design features and drawbacks, so Elliot Scientific recommends contacting us to discuss your application and its requirements.

Lake Shore also do some nice instruments to go with their sensors!

 

 

 

 

 


Tecella electrophysiology products now available from Elliot Scientific

Since 2007 Tecella has supplied electrophysiology measurement systems that allow pharmaceutical researchers to rapidly screen drugs and medical compounds thereby accelerating and improving drug discovery. Now Elliot Scientific enables scientists in the UK and Ireland to purchase their products.

Tecella offer a range of instruments for electrophysiology; from the single channel Pico to the 384-channel Apollo – designed for high throughput screening (HTS) systems.

Tecella Pico

In addition to electrophysiology, researchers working in electrochemistry, mems and other biotech fields can benefit from Tecella’s highly scalable amplifier architectures and fully customisable software and hardware solutions.

Please contact us for more information, or visit our Tecella product page.


April 2018 Newsletter Out Now

April 2017 NewsletterThe Elliot Scientific April newsletter is now available. In this issue we see how Elliot|Martock Flexure Stages are used by leading scientists around the globe, discover Lake Shore Cryotronics new Teslameter range for magnetics researchers, find out that Siskiyou Corporation fibre translators have a soft touch, and look at the latest night vision spectroradiometers from Gamma Scientific. Plus our new 2018 Product Overview brochure and more…

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Using CryoLab to measure Seebeck coefficients: Video from DEMCON kryoz explains

The Seebeck effect is the direct conversion of temperature differences to electric voltage and vice versa. A thermoelectric device creates voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, it creates a temperature difference.

By using the CryoLab from DEMCON kryoz, it is possible to measure the Seebeck coefficient of a material sample, wire or thin film from 373 Kelvin down to cryogenic temperatures. In this informative video, DEMCON kryoz demonstrate how such measurements are made using their equipment. For more information, please contact us.

 

 


New fibre-optic Test and Measurement equipment from EXFO

FTB-5235 Optical Spectrum Analyser
EXFO LogoThe new FTB-5235 Optical Spectrum Analyser from EXFO is a compact, entry-level optical spectrum analyser (OSA) ideal for a variety of field applications, including DWDM and CWDM network commissioning and troubleshooting.

With the largest screen in the industry, and an intuitive user interface, the FTB-5235 offers power and wavelength measurements, has a WDM and drift mode, is capable of OSNR testing (IEC 61280-2-9) and also offline post-processing.

PPM-350D PON Power Meter
EXFO’s new PPM-350D has been designed to fulfil the field technicians need to know what’s what. As communications service providers (CSPs) deploy next-gen technologies onto legacy passive optical networks (PON), by overlaying new wavelengths on existing lines, it is necessary to quickly determine what’s being squirted down a fibre. The PPM-350D PON Power Meter automatically detects the PON technology in use and adapts its test parameters to match.

The PPM-350D is compatible with GPON and EPON, can handle single- and multi-layer PON, has a pass-through mode for ONT/ONU verification, and supports 10G. It also comes with a smart App, Bluetooth and USB.

OSICS Multifunction Test Platform
EXFO has rebadged OSICS multifunction modular platform following its recent acquisition of Yenista Optics. The instrument has the widest selection of plug-in modules, making it the most flexible platform for DWDM (Dense Wavelength-Division Multiplexing) system evaluation and fibre optic component testing.

Up to 8 modules can be mixed and matched in a single OSICS mainframe. The range includes: compact tuneable lasers, a compact transmission laser, broadband light sources, and passive optical functions such as high-power optical attenuators and variable back reflectors.

Please contact us for more information about these or other test and measurement instruments from EXFO.


February 2018 Newsletter Out Now

September 2017 NewsletterThe Elliot Scientific February newsletter is now available. In this issue we welcome Accurion and their Halcyonics range of vibration isolation systems, take a look at Siskiyou’s probe manipulators for the life scientist interested in electrophysiology, survey the temperature measurement and control equipment from Lake Shore Cryotronics, and announce two new handheld instruments from EXFO for analysing optical powers and frequencies in fibre networks.

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The NOMAD-Touch temperature measurement system is a hot performer from Neoptix

NOMAD-Touch: A single-channel fibre-optic thermometer offers impressive versatility from a rechargeable touchscreen device. This single-channel fibre-optic thermometer allows you to freely move from one area to another to measure temperatures at various critical sensing points in medical, microwave, radio frequency, high voltage, aerospace and military applications.

NOMAD-Touch™ is perfect wherever you need immunity to electromagnetic fields, where conventional metallic sensors cannot be used. Please contact us for more information.

 


December 2017 Newsletter Out Now

December 2017 NewsletterThe Elliot Scientific December 2017 newsletter is now available: In this issue we examine the economic’s of laser trapping with Elliot Scientific Optical Tweezers, look at a hot performer from Neoptix – The NOMAD-Touch fibre-optic thermometer, see a video of how the DEMCON|kryoz CryoLab can measure Seebeck coefficients, and get the measure of the superior pitch adjuster screw sets from Kozak Micro

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November 2017 Newsletter Out Now

November 2017 NewsletterThe Elliot Scientific November newsletter is now available. In this issue this issue we reveal that: HOLOEYE has made their new driver standard across the PLUTO range of SLMs, EXFO has announced a new batch of test and measurement (T&M) instruments for the optical communications laboratory, OZ Optics is a great choice for economical high-quality fibre optic components, and Gamma Scientific has a new video demonstrating the capabilities of their SpectralLED light source.

To view it in a browser, click here.

To read it magazine-style online, click here.

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New benchtop T&M instruments from EXFO

EXFO offer a comprehensive range of benchtop and portable test instruments, delivering top performance and pinpoint accuracy for the optical communications laboratory. The range has recently been expanded with the addition of several new instruments:

 OSA High Performance Optical Spectrum Analyser
  • Wavelength range of 1250-1700 nm
  • Resolution: 20 pm (native) & adjustable over 50-2000 pm
  • Sweep speed up to 2000 nm/s
  • Accuracy: ±10 pm over 1500-1640 nm & ±25 pm over 1250-1700 nm
  • Power level accuracy of ±0.4 dB
  • Built-in calibration source
  • Intuitive user interface with 12″ touchscreen
  • 8 application-oriented analysis modes and a full suite of analysis tools

EXFO OSA High Performance Optical Spectrum Analyser

OSA

 XT Series Automatic/Manual Tuneable Filters with Fixed or Adjustable Bandwidth
XTA-50 Automatic Tuneable Filter with Adjustable Bandwidth

XTA-50 / XFA

  • Adjustable bandwidth flat-top filter
  • Ultra-sharp filter edges
  • High isolation
  • 200 nm wavelength range
  • High accuracy and repeatability
  • Narrowest filter – highest selectivity
  • Three models: Standard, Ultrafine & Wide
  • Manual (XTM-50) & Fixed Bandwidth (XFA) versions also available
 T100S-HP High Power Tuneable Laser Source
  • Power > +10 dBm for Essential & > +8 dBm for Extended Range models
  • Dynamic range of 100 dB & tuning range of up to 200 nm
  • 6 models cover 1240 to 1680 nm
  • Wavelength accuracy < ± 20 pm
  • Sweeping & Stepping operations
EXFO T100S-HP High Power Tuneable Laser Source

T100S-HP

For more information about these or other EXFO products we offer, please contact us.


5 electronic measurement pitfalls you’ve probably forgotten about…

Kevin Carmichael, of Lake Shore Cryotronics, has authored a paper outlining common errors that can be made during precision electronic measurements. Whether you are new to electronic device measurements or a pro, you’ll want to avoid these pitfalls to prevent:

  • Voltage errors
  • Current leakage
  • Ground loops
  • Field-induced interference
  • Source-related noise

To read more about how to do this, download 5 Electronic Measurement Pitfalls You Learned About in School But Probably Forgot.

About the Author

Kevin Carmichael is Senior Marketing Product Manager for Lake Shore Cryotronics responsible for material characterisation systems and instrumentation. This includes the company’s new line of high-performance, simple-to-use MeasureReady™ I/V sources for engineers and scientists requiring a very precise, low-noise source of current or voltage in the lab.