Peer reviewed
ERIC Number: EJ726140
Record Type: Journal
Publication Date: 2005-Jan-1
Pages: 2
Abstractor: Author
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Low-Cost Thermocouple Signal-Conditioning Module
Lenzi, Marcelo K.; Silva, Fabricio M.; Lima, Enrique L.; Pinto, Jose Carlos; Cunningham, Michael F.
Journal of Chemical Education, v82 n1 p122 Jan 2005
It is well known that reaction rates and physical properties of any substance depend on the temperature. Therefore, an accurate temperature measurement is a key factor for successful activities both in chemical laboratories and industrial plants. Although plenty of sensors can be adopted for temperature measurements, thermocouples are the most widely used. In this article we present a signal-conditioning module, based on the AD594C chip (Analog Devices, Inc.), which can be easily built at low cost and overcomes the drawbacks associated with thermocouple use. The results show good linearity and reproducibility of the temperature readout. After testing, it has been used to monitor the temperature of polymerization reactors in our labs.
Descriptors: Thermodynamics, Chemistry, Science Laboratories, Science Education, Laboratory Experiments, Science Experiments, Measurement, Laboratory Equipment
Journal of Chemical Education, Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Web site: http://jchemed.chem.wisc.edu/AboutJCE/contact.html.
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A