temperature – TechConnect Briefs

Investigating the Effects of Media and Light Sources on the Growth of Botryococcus Braunii

Sengul A.B., Rahman M.M., Asmatulu E., Wichita State University, US

The reduction of world’s petroleum reserves and the environmental problems created by emissions have increased the interests in alternative energy. Biodiesel is an environmentally friendly and biodegradable alternative fuel that is obtained from renewable sources. [...]

Optofluidic Temperature and Pressure Measurements with Fiber Bragg Gratings Embedded in Microfluidic Devices

Cooksey G.A., Wright J.D., Ahmed Z., National Institute of Standards and Technology, US

(INTRODUCTION) The integration of photonic sensors into microfluidic devices provides opportunities for dynamic measurement of chemical and physical properties of fluids in very small volumes. Microfluidic platforms provide sub-microliter control of fluid transport and mixing [...]

Ultrafast Integrated Humidity and Temperature Sensor Based on Carbon Nanotubes, and a Sensor Controller System

Kayastha V., Gibbons S., Giedd R., Brewer Science, Inc, US

A flexible, resistive-type, integrated humidity and temperature sensor that is made of carbon nanotubes (CNTs) will be presented. The sensor resolution is ~1% for relative humidity and <0.5°C for temperature. The sensor response and settling [...]

Temperature and Strain Coefficient of Velocity for Langasite SAW Devices

Wilson W.C., Atkinson G.M., NASA Langley Research Center, US

Surface Acoustic Wave sensors on Langasite substrates are being investigated for aerospace applications by NASA’s Vehicle Systems Safety Technologies (VSST) project. Strain sensors are being developed using the Langasite. Characterization of the Langasite material properties [...]

A Study of Solar Radiation, Storage and Applications in Nigeria

Odia O.O., Ambrose Alli University, Ekpoma, Edo State, NG

The paper investigates the availability of solar energy in Auchi, a town in Nigeria located between longitude 6o15' East of the GM line and latitude 7o02' North of the Equator using photovoltaic solar cells and [...]

A Study of Solar Radiation, Storage and Applications in Nigeria

Odia O.O., Ambrose Alli University, Ekpoma, Edo State, NG

The paper investigates the availability of solar energy in Auchi, a town in Nigeria located between longitude 6o15’ East of the GM line and latitude 7o02’ North of the Equator using photovoltaic solar cells and [...]

Reversible and irreversible temperature-induced changes in exchange-biased planar Hall effect bridge (PHEB) magnetic field sensors

Rizzi G., Lundtoft N.C., Østerberg F.W., Hansen M.F., Technical University of Denmark, DK

We generally investigate the use of exchange-biased planar Hall effect bridge (PHEB) magnetic field sensors for biodetection, where the sensors detect the binding and unbinding of magnetic beads to the sensor surface by biomolecular interactions. [...]

Wireless SensorSystem with Bidirectional Communications

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

The system contains units: wireless, control, actuator, software equipment. RF wireless unit ensures wireless communication between control unit and sensors as well as wireless switch unit. The control unit controls system operation, i.e. communication transfer, [...]

Modeling the Temperature Field in Reforming Anodes of a Button-Shaped SOFC

Zinovik I., Poulikakos D., ETH Swiss Federal Institute of Technology, CH

A new model for the determination of the temperature field in porous reforming anodes of SOFCs is presented. The model is implemented in a commercial CFD software package. Heat transfer, fluid flow and electrochemical reactions [...]

Pressure sensor data processing for vertical velocity measurement

Husak M., Jakovenko J., Stanislav L., Czech Technical University in Prague, CZ

There are design and realization of a sensor system for vertical velocity measurement using pressure sensor in the paper. Problem of nonlinearity due to the exponential function of air pressure versus altitude is discussed in [...]