Evaluation of Pressure Transducers for the Measurement of Transmitted Shockwave Profiles in Biological Tissues

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Authors
  1. Rude, G.
  2. Lee, J.
Corporate Authors
Defence R&D Canada - Suffield, Ralston ALTA (CAN)
Abstract
Research in blast-induced neurological trauma is a relatively new field, born from suspected blast-induced injuries sustained in recent conflicts. It has been undertaken largely by medical researchers with little or no experience with blast instrumentation. Most medical pressure transducers are not capable of measuring shockwave signatures, yet these instruments have been, and are being employed for this line of research. The objective of this study is to evaluate specific candidate transducers for their ability to resolve shockwave profiles within biological tissues. The project assesses some of the transducers that have historically been used to examine transmitted shockwave profiles in biological tissues and also examines some other possible candidates from the blast research community. Included is a brief primer on shockwave measurement principles to familiarize the reader with some of the basic aspects to be considered. Test data from each transducer is presented and interpreted with a discussion of the various features of the waveforms, and the fidelity with which the shockwave signatures were reproduced by the candidates. From the data presented, recommendations in regard to the type of instrumentation required for this field of research are made. Finally, the reader is provided with guidelines regarding future potential candidates as well as an insight as to the interpretation of shock and blast data.

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Keywords
Mild Traumatic Brain Injury;Medical Pressure Transducers;Inter-cranial Pressure Measurement;Shock Pressure Transducers
Report Number
DRDC-SUFFIELD-TM-2013-056 — Technical Memorandum
Date of publication
01 Jun 2013
Number of Pages
86
DSTKIM No
CA042844
CANDIS No
804739
Format(s):
Electronic Document(PDF)

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