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Bioresource and Agricultural Engineering

Selected Works

Matthew J. Darr

Vibration sensor

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

A Robust Sensor For Monitoring The Operational Status Of Agricultural Ventilation Fans, Matthew J. Darr, Lingying Zhao, Ji-Qin Ni, Christopher Gecik Jan 2007

A Robust Sensor For Monitoring The Operational Status Of Agricultural Ventilation Fans, Matthew J. Darr, Lingying Zhao, Ji-Qin Ni, Christopher Gecik

Matthew J. Darr

A new vibration sensor for monitoring the operational status of exhaust fans in confined animal feeding operations (CAFOs) and other ventilated structures was developed and tested. The sensor utilizes integrated Micro Electro Mechanical Systems (iMEMS) technology to accurately and reliably detect the vibration of agricultural fans, an indicator of fan operating status. When coupled with a sensor to measure pressure drop across the fan and an appropriate fan performance curve, the vibration sensor can enable the collection of real-time building ventilation airflow data. The sensor integrated an iMEMS accelerometer along with signal conditioning components to convert the cyclic acceleration signal ...


Improved Sensor For Agricultural Ventilation Fan Monitoring, Matthew J. Darr, Lingying Zhao, Christopher Gecik, Ji-Qin Ni Jul 2006

Improved Sensor For Agricultural Ventilation Fan Monitoring, Matthew J. Darr, Lingying Zhao, Christopher Gecik, Ji-Qin Ni

Matthew J. Darr

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.The sensor integrated an iMEMS accelerometer along with various signal conditioning components to convert ...