Wednesday, 10 August 2011

Wseas Transactions

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Transactions: INTERNATIONAL JOURNAL of CIRCUITS, SYSTEMS and SIGNAL PROCESSING
Transactions ID Number: 17-259
Full Name: Anderson Spengler
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: Av. Albert Einstein 400, 13083-852 Campinas SP
Country: BRAZIL
Tel: +551935214901
Tel prefix:
Fax: +551935214896
E-mail address: spengler@demic.fee.unicamp.br
Other E-mails: andersonws@gmail.com
Title of the Paper: A Low Power, Battery Operated Precision Portable Thermal Chamber with Double Thermoelectric Module
Authors as they appear in the Paper: Anderson W. Spengler, Elnatan C. Ferreira, J.A. Siqueira Dias
Email addresses of all the authors: spengler@demic.fee.unicamp.br, elnatan@demic.fee.unicamp.br, siqueira@demic.fee.unicamp.br
Number of paper pages: 8
Abstract: A low-power thermal chamber with a volume of only 2.5 liters capable of reaching temperatures over the -5ºC to 70ºC range was designed and constructed. Two small 12 V batteries are used as the power supply for the complete system. Thermoelectric modules were used as actuators since their size and performance characteristics allow the portability and precise temperature control. The PID control provided stability and errors better than normally found in expensive commercial thermal chambers, with maximum temperature error of ±0.2ºC with respect to the setpoint and with a fluctuation of ±0.1ºC.
Keywords: Thermal chamber, Thermoelectric modules, Stacked Thermoelectric modules, Analog PID, Temperature control, H-Bridge Power Driver
EXTENSION of the file: .doc
Special (Invited) Session: Precision Table-Top Portable Thermal Chamber with Double Thermoelectric Module
Organizer of the Session: 659-214
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