Test apparatus for measuring sound power levels of drills

Details

• Personal Author:
  Aljoe, William W. ; Stein, Robert R. ; Bartholomae, Roy C.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  This Bureau of Mines report describes in detail the design and operation of a test apparatus for measuring the sound power levels of drills used by the mining industry. The two major components of the test apparatus are a computer-controlled automated drill test fixture (ADTF) and a large (45,000-ft3) reverberation chamber that houses the ADTF. Design specifications and performance capabilities of the ADTF and the reverberation room are given. Initial test results for three types of drills--a pneumatic percussion drill, a hydraulic percussion drill, and a pneumatic rotary drill--are given to illustrate the types of experiments that can be conducted with the test appartus.
• Subjects:
  Rock-drills/Noise
• Series:
  Mining Publications
• Subseries:
  Information Circular
• Document Type:
  Text
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Pages in Document:
  ii, 35 numbered pages
• NIOSHTIC Number:
  nn:10005835
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7023204a68ea1a2bf41361a5a69686c0e66207d08d32eb59d377a456a603afa714de10749989f6e713899bb0a4d65512906932bbb8a2c806581fba8c0c851e3a
• Download URL:
  https://stacks.cdc.gov/view/cdc/8935/cdc_8935_DS1.pdf
• File Type:
  [PDF - 1.62 MB ]