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!
Lake Shore’s temperature sensor data is now online
Lake Shore is now offering all their temperature sensor information in one convenient online page. The new Sensors’ page contains links to:
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Over the coming months, Lake Shore will migrate away from shipping calibration data CDs with calibrated sensors and will instead only offer this data via a portal accessible from the new page.
Data is currently available online for sensors shipped since the beginning of 2016, so if an existing CD is lost or damaged, the calibration data can be quickly downloaded providing you have the serial number of the relevant sensor on hand. Alternatively, contact Lake Shore Service for archived curves.
Image of Saturn by Cassini courtesy of NASA
Lake Shore space-qualified sensors were on the hugely successful Cassini Huygens mission to Saturn that ended earlier this month.
Nearly twenty years of gathering temperature information in an extreme environment is a good advert for their sensors, and Elliot Scientific often supplies them to the aerospace industry and space scientists in the UK and Ireland.
Please contact us for more information.
June 2017 Newsletter Out Now
The Elliot Scientific June newsletter is now available. In this issue we discover that the latest Model 8600 Vibrating Sample Magnetometer from Lake Shore is the best yet, reveal the SLICE-QT temperature controller as launched by Vescent Photonics at CLEO, show how Gamma Scientific‘s new drop-in tuneable RS-7 LED light source benefits image sensor manufacturers, and look forward to LASER World of Photonics with a preview of our products that will be on display end of June, plus much more…
To view it in a browser, click here.
To read it magazine-style online, click here.
To download it as a PDF, click here.
New Elliot Scientific 2017 Brochure out now
Product Overview 2017 is now available to download. This new brochure from Elliot Scientific details the broad range of products and equipment we offer from leading companies around the globe and our own ranges designed and manufactured in-house.
The sixteen page brochure has been fully updated to include all the latest products that we offer for:
- Lasers and Systems
- Optics and Fibre-optics
- Precision Positioning
- Microscopy and Biophotonics
- Spectroscopy
- Sensors and Instrumentation
- Materials Research
Printed copies of the brochure are also available. Contact us to have one posted to you, or simply pick one up at any UK conference or exhibition we are attending.
Our next is SU2P in Glasgow: 5th and 6th April.
March 2017 Newsletter Out Now
The Elliot Scientific March newsletter is now available. In this issue we announce a web page dedicated to Lake Shore‘s range of cryogenic temperature sensors, reveal Laser Focus World‘s in-depth article on Fibercryst’s Taranis single crystal fibre laser technology, look at NoIR LaserShields‘ flip-frame protective eyewear, and cover CRAIC Technologies’ 508 PV microspectrophotometer add-on for microscopes, plus news of four events we are attending in April.
To view it in a browser, click here.
To read it magazine-style online, click here.
To download it as a PDF, click here.
Lake Shore’s Cryogenic Temperature Sensors now on elliotscientific.com
Lake Shore offers four types of sensor for cryogenic temperature measurement based on voltage (diodes) or resistance. Each has its own advantages and disadvantages, and these can be easily seen at-a-glance via our new Cryogenic Temperature Sensors page.
For example: Of the three most common NTC resistor materials, sputter-deposited zirconium oxy-nitride aka Cernox™ – the others being Germanium and Ruthenium Oxide (Rox™) – is the most versatile. Cernox™ thin film resistors are only manufactured by Lake Shore Cryotronics, and incorporated into robust sensor packages.
Cernox™ works over a broad temperature range, does not follow a standard curve, has sensitivity below 1 K, and is highly resistant to ionising radiation and magnetic field-induced errors. These features can be instantly seen on the page via our colourful graphics:
| ♨ | 0.1 to 420 | ⌒ | ✘ | ❆ | ✔ | ☢ | ✔ | ⋐ | ★★★ (1 K +) |
In all, nine different temperature sensor materials are detailed and an informative datasheet is available to download. However, Elliot Scientific still recommends contacting us for expert advice on sensor choice for your application.
July 2016 Newsletter Out Now
The Elliot Scientific July newsletter is now available. In this issue we announce Elliot Scientific’s new ISO9001:2015 certification and Lake Shore‘s latest brochure covering their product ranges, explain how Andeen-Hagerling measure more than most using nano Siemens and why Tristan Technologies can sense femto Teslas, then describe how to manage remote temperature measurements with the popular Neoptix OmniFlex 2 system.
To view it in a browser, click here.
To read it magazine-style online, click here.
To download it as a PDF, click here.
New OmniFlex 2 multi-channel fibre optic temperature monitoring system from Neoptix
The Neoptix OmniFlex 2 System is a new, fully upgradeable, multi-channel fibre optic temperature monitoring system.
Field upgradeable to as many as 104 channels, the unit can be controlled by its onboard colour touchscreen, or remotely using a web browser via Ethernet. The latter method is more comprehensive, as it enables remote module configuration, data-logging capabilities, full electrical isolation, and optional WiFi connectivity.
The basic OmniFlex 2 chassis is a standard 3U in height that accommodates up to 6 OmniModules, while a 6U version can be fitted with a total of 13 OmniModules. Additional chassis can be cascaded by linking them via a router.
OmniModules
The OmniFlex 2 System allows use of several types of OmniModules in the same chassis. These plug-in modules can easily be mixed and matched to meet the needs of specific test projects. The current OmniModules are:
- 4-channel direct measurement module operating at 10 Hz/channel
- 4-channel multiplexed module operating at 250 ms/channel
- 8-channel multiplexed module operating at 250 ms/channel
- 16-channel 0-10 V analogue output module
Since its introduction in 2006, OmniFlex systems have been used in aerospace, cryogenic research, medical and other demanding industrial applications. It has also been the ideal tool of choice for monitoring temperatures during power transformer testing due to its -80 to +300 °C measuring range.
Please contact us for more information.
New Elliot Scientific brochure launched for 2016: Read online now!
Product Overview 2016 is now available to browse online via our Issuu channel, or you can download a PDF version.
This all-new brochure from Elliot Scientific details the broad range of products and equipment we offer from leading companies around the globe, and our own ranges designed and manufactured in-house.
The sixteen page brochure has been fully updated to include all the latest products that we offer for:
- Lasers and Systems
- Optics and Fibre-optics
- Precision Positioning
- Microscopy and Biophotonics
- Spectroscopy
- Sensors and Instrumentation
- Materials Research
Printed copies of the brochure are also available in the UK. Contact us to have one posted to you, or simply pick one up at any conference or exhibition we are attending.
Our next is Photonex, which begins on October 14th in Coventry next week.
Sensitive magnetometry for physics and the biological sciences from Tristan Technologies
Tristan Technologies delivers world-leading SQUID sensors through their superior performance iMAG range. Magnetic sensing applications, such as materials analysis and biomagnetism, can benefit from Tristan’s sensors, instrumentation and electronics.
The iMAG series of SQUID components includes microprocessor-based multichannel control electronics and advanced fibre optic linked flux-locked loop circuits. Tristan manufactures complete SQUID systems based on either low-temperature or high-temperature technology. For in-depth information, please contact us.
Nufern’s new fibre coverings resist hydrogen gas and high temperatures
The NuSENSOR™ product line, by Nufern, features graded index multimode (MM) fibres designed for Distributed Temperature Sensing (DTS); and single-mode (SM) fibres designed for Distributed Temperature and Strain Sensing (DTSS), and Fiber Bragg Grating (FBG) based sensors.
Both the MM and SM fibres are available with either pure silica or germanium doped core glass compositions, and Nufern is now offering these fibres with carbon/polyimide or carbon/mid-temperature acrylate coatings in addition to the existing polyimide coated fibres. Depending on coating chosen, the fibre is can be protected from temperatures up to 300 °C and H2 rich environments.
Latest Elliot Scientific brochure launched for 2015: Download it now!
Product Overview 2015 is now available for download. This all-new brochure from Elliot Scientific details the broad range of products and equipment we offer from leading companies around the globe, and our own ranges designed and manufactured in-house.
The sixteen page brochure has been fully updated to include all the latest products that we offer for:
- Lasers and Systems
- Optics and Fibre-optics
- Precision Positioning
- Microscopy and Biophotonics
- Spectroscopy
- Sensors and Instrumentation
- Materials Research
Printed copies of the brochure are also available. Contact us to have one posted to you, or simply pick one up at any conference or exhibition we are attending. Our next is Photonex, which begins in Coventry tomorrow.
Alternatively, you can browse it online, magazine-style, on our Issuu channel.
Elliot Scientific 