Sensors & Test

Test & Measurement

Briefs : Materials
A Fast, Non-Destructive Test for Two-Dimensional Materials

Thinning a material down to a single-atom thickness can dramatically change that material’s physical properties. Graphene, the best known two-dimensional (2D) material, has...

Briefs : Test & Measurement
Printing Ink Removes Oxygen in Sealed Packages

Oxygen adversely impacts food flavor and nutrition. NASA’s proposed five-year shelf life for astronaut food requires aggressive measures to minimize oxygen. Previously, NASA packaged foods in containers with a high oxygen and moisture barrier. These materials have limiting properties. They contain...

Briefs : Sensors/Data Acquisition
Surface-Field-Enhanced Detection of Deep UV Photons in Silicon Carbide Avalanche Photodetectors

While silicon carbide (SiC) is an ideal material for building ultraviolet (UV) photodetectors, the absorbed photons get recombined in the first few nanometers at the surface due to a large absorption coefficient in the 200- to 250-nm wavelength band....

Products : Mechanical & Fluid Systems
New on the Market: May 2018

Assembly Pins

JW Winco, New Berlin, WI, offers GN 2342 RoHS-compliant stainless steel assembly pins with three washer types available that place the bolt in an axial position in its insertion direction....

Briefs : Test & Measurement
Miniature Mass Spectrometer

For decades, mass spectrometers have offered a relatively fast and highly sensitive way to analyze and detect chemical compounds. But their bulky size has been a hindrance, limiting the in-field potential of the...

Who's Who : Nanotechnology
Q&A: Dr. Yimei Zhu, Senior Physicist, Brookhaven National Laboratory, Upton, NY

Researchers at Brookhaven National Laboratory have observed how lithium moves inside individual nanoparticles that make up batteries. The finding could help companies develop batteries that charge faster and last longer.

Briefs : Aerospace
Piezomagnetic Material Changes Magnetic Properties When Stretched

Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used; for example, lighters that spark when a switch is...

Briefs : Test & Measurement
Technique Measures Temperature of 2D Materials at the Atomic Level

Newly developed two-dimensional (2D) materials such as graphene — which consists of a single layer of carbon atoms — have the potential to replace traditional microprocessing chips based on silicon, which have reached the limit of how small they can get. But engineers have...

Briefs : Test & Measurement
Analysis of Molecules in Liquids on a Chip

Much can be detected in blood or urine — viral illnesses, metabolic disorders, or autoimmune diseases can be diagnosed with laboratory tests, for instance. But such examinations often take a few...

Briefs : Materials
Plastic Material Works as a Heat Conductor

Plastics are excellent insulators, meaning they can efficiently trap heat — a quality that can be an advantage in something like a coffee cup sleeve. But this insulating property is less desirable in products such as plastic casings for laptops and mobile phones that overheat, in part, because the...

Briefs : Manufacturing & Prototyping
Technique Enables 3D Printing of Microstructures

Two-photon lithography (TPL), a high-resolution 3D printing technique, is capable of producing nanoscale features smaller than 1/100 the width of a human hair. The technique could enable X-ray...

Briefs : Test & Measurement
Thermal Energy Storage and Monitoring

Water heaters and other thermal energy storage devices increase the temperature of a medium above an ambient or normal temperature, and store the warmer medium. Water heaters, in particular, must store...

Articles : Photonics/Optics
Essential Principles for Designing and Specifying Laser Optics

Laser engineers are leveraging new materials, unusual gain mechanisms, and innovative cavity designs to push laser performance into new regimes. Pulse lengths are getting...

Application Briefs : Photonics/Optics
Using Digital Microscopes as Inspection Tools

Digital microscopes are being automated and computerized to make them easier to use, display more data with more detail and precision, and expand their areas of application. With traditional...

Products : Lighting
New Products: May 2018 Photonics & Imaging Technology

Portable Laser Scanner

Hexagon Manufacturing Intelligence (North Kingstown, RI) has announced the Leica Absolute Scanner LAS-XL, a new ultralarge scale portable laser scanner....

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