measurement – TechConnect Briefs

Pilot Scale Demonstration & Independent Verification of Carbon Utilization Technologies for the NRG COSIA Carbon XPRIZE

Hansen T., Woolcock P., Leitch M., Extavour M., McCabe K., Southern Research, US

The NRG COSIA Carbon XPRIZE is a global competition to develop technologies for converting CO2 from power plants and industrial facilities into valuable products. The pilot scale demonstration required teams to operate at a 200 [...]

Solid-Liquid Work of Adhesion

Gulec S., Tadmor R., Das R., Liu J., N'guessan H., Shah M., Wasnik P., Yadav S.B., Lamar University, US

Centrifugal Adhesion Balance (CAB) is used for measuring directly solid-liquid work of adhesion by inducing an ever-increasing normal force which pulls on the droplet while keeping zero lateral force until the liquid-solid contact area starts [...]

Characterization of Solar Grade Silicon Contaminants

Mount G.R., Wang L., Putyera K., Lepage M., Evans Analytical Group, US

The term ‘Solar Grade Silicon (SoG)’ has been used for many years but until recently, there were no specifications as to what this actually meant. Without specifications, suppliers of silicon have been using ‘number of [...]

Characterization of Solar Grade Silicon Contaminants

Mount G.R., Wang L., Putyera K., Lepage M., Evans Analytical Group, US

The term ‘Solar Grade Silicon (SoG)’ has been used for many years but until recently, there were no specifications as to what this actually meant. Without specifications, suppliers of silicon have been using ‘number of [...]

Nanoparticle size and shape evaluation using the TSOM optical microscopy method

Attota R., Silver R.M., Vladar A., NIST, US

We present a novel optical technique that produces nanometer dimensional measurement sensitivity using a conventional optical microscope, by analyzing through-focus scanning optical microscope (TSOM - pronounced as ‘tee-som’) images obtained at different focus positions. In [...]

Simple vertical velocity measurement system for different use

Husak M., Jakovenko J., Czech Technical University in Prague, Faculty of Electrical Engineering, CZ

The measurement of vertical velocity is necessary for different use. The solutions are based on principle of evaluating the change of an atmospheric pressure. The dependence which evaluates the vertical velocity is derived from the [...]

Evaluating nanomaterial exposures in the workplace: A description of the approach used by NIOSH and a summary of findings from 12 site visits

Hodson L.L., Methner M.M., Geraci C.L., NIOSH, US

Health, safety, and environmental issues continue to be a high priority area to be addressed during the commercialization of nanomaterials or nanomaterial-enabled products (Lux 2008). Facilities engaged in the production or use of engineered nanomaterials, [...]

Nanometre particle sizing and stability measurement with tabletop PCCS

Laemmle W., Sympatec GmbH, DE

Modern materials very often derive their properties from nano-particles. This implements a fast growing demand for control of particle size in this field. The most popular technique to do so is PCS, photon correlation spectroscopy. [...]

Strong and Weak Inversion Mode of MOS in the Design of Direction Sensitivity Matrix

Husak M., Boura A., Jakovenko J., Czech Technical University in Prague, CZ

In the article there is presented a new arrangement of a temperature sensor system for air velocity and direction measurement. The system utilizes temperature dependence of the current through the channel of MOS structure. The [...]

Characterisation of thin film piezoelectric materials by differential interferometric techniques

Cain M.G., Steward M., Downs M., National Physical Laboratory, UK

Piezoelectric thin films are considered emergent materials for integration within Micro Systems Technology (MST) or MEMS devices. The development of suitable measurement facilities to characterise the materials functional properties is complicated by the fact that [...]