Peer-Reviewed Journal Details
Mandatory Fields
Mahdi, A.E.; Faggion, L.
2011
September
Journal Of Physics: Conference Series
Non-contact Biopotential Sensor for Remote Human Detection
Published
()
Optional Fields
Displacement current sensors, non-contact biopotentail sensors, ECG/EMG
307
012056/1
012056/6
This paper describes a new low-cost,  low-noise displacement current sensor
developed for non-contact measurements of human biopotentials and well suited for detection of human presence applications. The sensor employs a simple, improvised transimpedance amplifier that eliminates the need for ultra high values resistors normally needed in current amplifiers required for this type of measurements. The sensor provides an operational bandwidth of 0.5 – 250 Hz, and a noise level of 7.8μV/√Hz at 1 Hz down to 30nV/√Hz at 1 kHz. Reported experimental results demonstrate the sensor’s capability in measuring heart related biopotentials within 0.5m off-body distance, and muscle related biopotentials within 10m no obstacles off-body distance, and 5m off-body distance with a concrete wall in between.
IOPscience
1742-6588
Volume 307
http://iopscience.iop.org/1742-6596/307/1
10.1088/1742-6596/307/1/012056
Grant Details