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Improved Sensor for Agricultural Ventilation Fan Monitoring
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 064160, 2006 ASAE Annual Meeting . @2006
Authors: Matthew J. Darr, Lingying Zhao, Ji-qin Ni, Chris Gecik
Keywords: iMEMS, vibration sensor, air quality, ventilation monitoring
A new sensor for monitoring the continuous operation of exhaust fans in confined animal
feeding operations (CAFOs) was developed and tested. The sensor relies on integrated Micro
Electro Mechanical Systems (iMEMS) technology to accurately and reliably detect vibration on the
external hood of agricultural fans, caused by the rotation of the fan blade. When coupled with a
sensor to measure pressure drop across the fan and an appropriate fan curve, the vibration sensor
can enable real-time fan specific collection of emission data from animal housing structures.