Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/4824
Título: | A MCM-based microsystem for soil moisture measurements |
Autor(es): | Valente, A. Morais, Raul Couto, Carlos Correia, J. H. |
Palavras-chave: | Soil moisture sensor Integrated microsensor Heat capacity sensor Sigma-Delta converter Multi-hip-module |
Data: | 2002 |
Editora: | Czech Technical University (CTU) |
Citação: | SANEISTR, J., RIPKA, P., ed. lit. – “Eurosensors XVI : book of abstracts : European Conference on Solid-State Transducers, 16, Prague, Czech Republic, 2002”. Prague : Czech Technical University, 2002. ISBN 80-01-02576-4. p.780-781. |
Resumo(s): | This work presents a Multi-Chip-Module (MCM) based microsystem for irrigation control in agriculture. The proposed microsystem includes a soil moisture microsensor, an analog-to-digital converter, signal processing circuits (digital filtering and sensor interface) and a RF 433MHz transmitter. A heat--pulse technique is used to determine the volumetric heat capacity and hence the water content of a porous media, such as the soil. This method is based on the Joule effect (heater probe) and in Seebeck effect (temperature probe). By using CMOS standard processes (low-cost) a network could be implemented in order to achieve an accurate measurement of the soil moisture at the plant root level. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/4824 |
ISBN: | 80-01-02576-4 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DEI - Artigos em atas de congressos internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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0780 Valente.pdf | Documento principal | 293,01 kB | Adobe PDF | Ver/Abrir |