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Vol. 162, Issue 1, January 2014, pp. 173-176

 

Bullet

 

Non-Contact Cardiac Activity Monitoring using Pulsed Laser Vibrometer
 

1 Chen Chia WANG, 1 Sudhir TRIVEDI, 1 Susan KUTCHER, 2 Ponciano RODRIGUEZ, 1 Feng JIN, 3 V. SWAMINATHAN, 3 Frank WALTERS,
and 4 Narasimha S. PRASAD

1 Brimrose Corporation, 7720 Belair Road, Baltimore, Maryland 21236, USA
2 INAOE, A.P. 216, Puebla 72000, Mexico
3 US Army, RDECOM-ARDEC, Picatinny, NJ 07806, USA
4 NASA Langley Research Center, Mail Stop 468, Hampton, VA 23681, USA
1 Tel.: 1-410-472-7070

1 E-mail: ccwang@brimrose.com

 

Received: 12 November 2013 /Accepted: 9 January 2014 /Published: 31 January 2014

Digital Sensors and Sensor Sysstems

 

Abstract: We demonstrate experimentally the detection of detailed human cardiac mechanical activity in a remote, non-contacting, and non-ionizing manner using a pulsed laser vibrometer. The highly sensitive pulsed laser vibrometer allows the detection of the temporally-phased mechanical events occurring in individual cardiac cycles even from the surface of clothing-covered extremities of the subjects. Fine structures of the detected cardiac traces are identified with their meanings assigned and corroborated using accelerometer and electrocardiogram measurements obtained concurrently with the pulsed laser vibrometer studies.

 

Keywords: Cardiology, Laser remote sensing, Laser vibrometer, Non-contact evaluation.

 

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