Accession Number : AD0670231

Title :   A TRIAXIAL ACCELEROMETER MODULE FOR VESTIBULAR APPLICATION.

Descriptive Note : Army-Navy Joint rept.,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Hixson,W. Carroll

Report Date : MAY 1968

Pagination or Media Count : 17

Abstract : A brief description is given of a 6-channel instrumentation module developed for collection of preliminary acceleration data for the a priori determination of optimal characteristics for transducers to be installed permanently on various aircraft and man-rated research devices for the measurement of vestibular-significant acceleration stimuli. The module utilizes three linear and three angular accelerometers, all of the standard, commercially available, servo type, to measure the triaxial linear and triaxial angular accelerations, along and about, respectively, the roll, pitch, and yaw axes of the test device or vehicle. Signal-conditioning amplifiers equipped with feedback circuitry to facilitate in-flight adjustment of gain and high-frequency rolloff characteristics are provided for optimal utilization of the dynamic range capabilities of magnetic tape data storage recorders. Though the instrument is used primarily to collect acceleration data in the 0-5 cps spectrum, the linear channels can also be used in determining vibration levels in the 0-100 cps range. (Author)

Descriptors :   (*ACCELEROMETERS, *AVIATION MEDICINE), INSTRUMENTATION, AIRCRAFT, SHIPS, VEHICLES, MOTION, SIMULATORS, PROPRIOCEPTION, VESTIBULAR APPARATUS, AMPLIFIERS, FEEDBACK, MAGNETIC TAPE, DATA STORAGE SYSTEMS, VIBRATION

Subject Categories : Flight Control and Instrumentation
      Stress Physiology
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE