Characterization of a portable and low cost system for practical dielectric spectroscopy

Low-cost system for full-wafer photoluminescence characterization of photovoltaic silicon

2013 Spanish Conference on Electron Devices ◽

10.1109/cde.2013.6481415 ◽

2013 ◽

Cited By ~ 1

Author(s):

B. Moralejo ◽

A. Tejero ◽

O. Martinez ◽

M. A. Gonzalez ◽

J. Jimenez ◽

...

Keyword(s):

Low Cost ◽

Cost System

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Construction and testing of a system for the electrical characterization of ceramic thermistors at low temperatures

Cerâmica ◽

10.1590/s0366-69132014000100014 ◽

2014 ◽

Vol 60 (353) ◽

pp. 96-101 ◽

Cited By ~ 3

Author(s):

F. C. S. Luz ◽

S. A. Pianaro ◽

C. E. Yurk ◽

G. Capobianco ◽

A. J. Zara ◽

...

Keyword(s):

High Temperatures ◽

High Precision ◽

Low Temperatures ◽

Room Temperature ◽

Low Cost ◽

Electrical Characterization ◽

Cost System ◽

Materials Research ◽

Excellent Reproducibility

A high-precision and low cost system was built for the electrical characterization of ceramic thermistors at low temperatures, using components readily available in materials research laboratories. The system presented excellent reproducibility in the electrical characterization of NTC ceramic sensors from -75 ºC (195 K) to 23 ºC (296 K). The behavior of the NTC sensor was comparable to that of commercial thermistors only below room temperature (α = -3.2%/K), demonstrating the importance of fully characterizing these materials at both low and high temperatures.

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Multi-channel impedance analyzer for automated testing of networks and biomaterials

Current Directions in Biomedical Engineering ◽

10.1515/cdbme-2020-3107 ◽

2020 ◽

Vol 6 (3) ◽

pp. 414-417

Author(s):

Wolfram Schmidt ◽

Carsten Tautorat ◽

Klaus-Peter Schmitz ◽

Niels Grabow ◽

Frank Kamke ◽

...

Keyword(s):

Low Cost ◽

Single Frequency ◽

Impedance Analyzer ◽

Biomedical Sensors ◽

Cost System ◽

Reference Measurements ◽

Functional Biomaterials ◽

Multiple Samples

AbstractImpedance spectroscopy represents a basic operating principle for biomedical sensors, bioimpedance spectroscopy, electrochemical analyses and for characterization of functional biomaterials. For automated long-term investigations, an impedance analyzer for multi-channel testing of up to eight passive two-pole networks is presented in this paper. Its operating system is application-specific adapted to the required test functionalities and measuring ranges. Measurements are based on a commercially available integrated impedance converter circuit. Our current analyzer setup is capable of measuring impedance values from 50 kΩ up to 10 MΩ with automated range selection for most accurate results. The impedance under test is excited with a single frequency of 1 kHz. An impedance accuracy of 1.5 % was determined in reference measurements. The presented impedance analyzer is a low cost system ready for use particularly in long-term characterization of dielectric networks, such as material properties, with multiple samples.

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Low-Cost System Handles Patient Phone Calls

Internal Medicine News ◽

10.1016/s1097-8690(07)70680-7 ◽

2007 ◽

Vol 40 (11) ◽

pp. 53

Author(s):

BRUCE K. DIXON

Keyword(s):

Low Cost ◽

Cost System ◽

Phone Calls

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Intelligent, low-cost system for fume control during laser material processing

International Laser Safety Conference ◽

10.2351/1.5056599 ◽

2005 ◽

Author(s):

Ramin Sattari ◽

Stephan Barcikowski ◽

Thomas Püster ◽

Andreas Ostendorf ◽

Heinz Haferkamp

Keyword(s):

Material Processing ◽

Low Cost ◽

Laser Material Processing ◽

Laser Material ◽

Cost System

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Microstructure and Thermoelectric Properties of (Bi0.48Sb1.52)Te3 Thick Films Prepared with Tape Casting Method

Electronics ◽

10.3390/electronics10020140 ◽

2021 ◽

Vol 10 (2) ◽

pp. 140

Author(s):

Lichen Liu ◽

Ziping Cao ◽

Min Chen ◽

Jun Jiang

Keyword(s):

Thermoelectric Properties ◽

Low Cost ◽

Thick Films ◽

Tape Casting ◽

Casting Process ◽

Casting Method ◽

Glass Substrates ◽

Conductive Films ◽

Casting Technology

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.

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