Piezoceramic Float Dust Deposition Meter: A Feasibility Study

Details

• Personal Author:
  Pinkerton JE ; Sapko, Michael J. ; Williams RR
• Description:
  The US Bureau of Mines is exploring the possibility of designing a meter to measure the quantity of float dust deposited at various locations in a coal-mine by using the change in the resonant frequency of a piezoceramic diaphragm. The results of the study have shown that dust deposited on a 0.9 in diameter, 0.021 in thick piezoceramic diaphragm with a natural frequency of about 2.5 kHz exhibits a linear frequency change of about 1 Hz for every mg/cm2 of dust loaded on the diaphragm between 0 mg/cm2 and 30 mg/cm2 independent of the type of dust used (coal-dust or rock-dust), and 2 Hz/mg-cm-2 between 30 mg/cm2 and 100 mg/cm 2. The change from 1 Hz/mg-cm-2 to 2 Hz/mg-cm-2 at 30 mg/cm2 is believed to be associated with a change in the contiguity of the dust deposit. Present results indicate that a float dust deposition meter based on this technology can measure dust loads to within +/-1 mg/cm2 but cannot distinguish between coal-dust or rock-dust. [Description provided by NIOSH]
• Subjects:
  Dust Mining Occupational Health Particulate Matter Safety
• Keywords:
  Dust-exposure Dust-inhalation Dust-particles Mineral-dusts Mining-industry Particulate-dust
• Series:
  Mining Publications
• ISSN:
  0093-9994
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  167-170
• Volume:
  26
• Issue:
  1
• NIOSHTIC Number:
  nn:10007390
• Citation:
  IEEE Trans on Ind Appl 1990 Jan/Feb; 26(1):167-170
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  True
• Source Full Name:
  IEEE Transactions on Industry Applications
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:729d632a3b2c509ee2e7a97e7726ebc5c31af9c11275a5d20c047adff4a6832a9b269ec36b1da8be02a81d3ea3cbb7d5700ad8fb54f6b42a2f7a4cb8784a6ebc
• Download URL:
  https://stacks.cdc.gov/view/cdc/219806/cdc_219806_DS1.pdf
• File Type:
  [PDF - 365.69 KB ]