2011 Volume 80 Issue 8 Pages 697-700
On-site monitoring for precise control is being expected in the agriculture and animal industry. For living up to the expectation, a multimodal sensor integrating several types of sensors that are capable of measureing factors effecting the target is required. We fabricated a multimodal sensor integrated with a pH, an electrical conductivity and temperature sensors. Because solutions in the soil and stomach can electrify, the multimodal sensor had cross talk between the pH and electrical conductivity sensors. Therefore, sensor operating methods and an output signal processing system were reformed. Real time and simultaneous measurements using the multimodal sensor were successful. On the other hand, a wireless unit with wireless modules and the multimodal sensor was fabricated. The wireless unit was successful in the wireless and real time measurements of the stomach juice of a cow.
