Improved Source Location Using Sensor Arrays

Details

• Creators:
  Connolly, Mark P. ; Lyman, James
• Corporate Creators:
  Cyltek, Inc.
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration
• Subject/TRT Terms:
  • Acoustic emission tests
  • Inspection
  • Location
  • Tank cars
  • Sources
  • Sensor arrays
• Publication/ Report Number:
  FRA/ORD/98/05
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
• Abstract:
  The purpose of this research was to develop a sensor array capable of identifying the location of acoustic sources. The sensor array was constructed from a polymer known as PVDF. The array was created using an etching technique similar to that used for printed circuit boards. An amplifier was designed and built for this array. A microprocessor controlled digital logic board was built that was capable of analyzing the output from up to 16 pre-amplifiers. The logic board was capable of analyzing the output from a 4 by 4 sensor array as an acoustic wave traversed the sensor elements. A number of trials with the sensor-array and associated electronics showed that it was capable of identifying the direction of a number of sources.
• Format:
  PDF
• Funding:
  DTRS57-97-C-00077
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/60803/dot_60803_DS1.pdf
• File Type:
  [PDF - 4.12 MB]
• Collection(s):
  Federal Railroad Administration
• Main Document Checksum:
  urn:sha256:236788b7159c6eb852ee1e7adfdeef307b61b72e69a5a42cc94dc4c7b575608c