Superficial Temporal Artery Monitor
Abstract
This effort for the development of a concept demonstration superficial temporal artery pulse detector is a subset of a workunit devoted to the development of an artificial intelligence system combined with unobtrusive sensors for the purpose of the detection of acceleration induced loss of consciousness in fighter aircraft pilots. A non-invasive monitor was developed, evaluated and demonstrated. The experimental model operates at a frequency of 2. 45 GHz with a power output of less than 40mW and an average power density not exceeding 2mW/sq. cm at the surface of the monitor. It is contained with a 64 x 64 x 20 mm thick polytetrafluorethylene housing covered on all sides by a thin metal casing for shielding purposes. A novel motion sensing circuit was employed in which miniscule current changes are produced in the bipolar transistor oscillator by fluctuations in antenna loading caused by the motion of the superficial temporal artery. Waveforms observed while the monitor is held securely against the head proximate to the superficial temporal artery clearly show pulse action. Keywords: Acceleration, Acceleration tolerance, Aerospace medicine, Air superiority fighters, Artificial intelligence, Bioinstrumentation, Blood circulation, Stress physiology.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1986
- Accession Number
- ADA167465
Entities
People
- Daniel D. Mawhinney
- Thomas Kresky
Organizations
- Sarnoff Corporation