Validation of the Aerospace Medical Research Laboratories 3-Channel Personal Telemetry System

Item

Title
Validation of the Aerospace Medical Research Laboratories 3-Channel Personal Telemetry System
Date
1964
Index Abstract
Not Available
Photo Quality
Not Needed
Report Number
AMRL TR 64-124
Creator
Ax, Albert F.
Corporate Author
The Lafayette Clinic
Laboratory
Biophysics Laboratory
Extent
34
Identifier
AD0610589
Access Rights
CFSTI
Distribution Classification
1
Contract
AF 33(657)-9352
DoD Project
7222
DoD Task
None Given
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Abstract
The art of physiological telemetry is borderline in three areas: (1) sensors, (2) transmitter, (3) data processing. This study assessed the AMRL 3-channel personal telemetry from all three aspects. Analysis of the records transmitted from men in various graded intensities of physical activity revealed that of the three physiological variables (respiration, EKG, and temperature), respiration was the least valid. Torso circumference changes sensed by rubber tube strain gages proved superior to the impedance method for measuring respiration. Some tentative findings on a stress interview study reveal the telemetry method to have promise. It was shown that the major difficulty preventing widespread use of physiological telemetry in significant field situations is the lack of a practicable high-speed data processing system which can distinguish and utilize the occasionally valid physiological signal emersed in artifact or noise produced by movements and changing environmental influences. The solution to the artifact problem is first to sense and utilize movement and environmental influences to gate out and to correct the physiological data and second to develop automatic editing apparatus and computer programs for recognition and selection of the valid signal patterns.
Report Availability
Full text available
Date Issued
1964-12
Provenance
RAF Centre of Aviation Medicine
Type
report
Format
1 online resource
Media
AMRLTR64-124.pdf