Time and amplitude statistics for electromagnetic noise in mines

Kanda, Motohisa

Back to Previous Page

- Add this to...
- Twitter
- Facebook
- Google Bookmarks
- LinkedIn

Time and amplitude statistics for electromagnetic noise in mines

Published Date:

1974

Series:

Open file report (United States. Bureau of Mines) ; 1975-40 ; NBSIR ; 74-378 ;

Language:

English

[PDF-1.79 MB]

Details:

Personal Authors:

Kanda, Motohisa

Corporate Authors:

Pittsburgh Mining and Safety Research Center. . United States. Bureau of Mines. . United States. National Bureau of Standards. Institute for Basic Standards. Electromagnetics Dvision.

Keywords:

[+]

Description:

The time and amplitude statistics necessary to adequately describe electromagnetic (EM) noise in mines are illustrated through computer software techniques. They are 1) Allan Variance Analyses (AVA), 2) Interpulse Spacing Distributions (ISD), 3) Pulse Duration Distributions (PDD), 4) Average Crossing Rates (ACR) , and 5) Amplitude Probability Distributions (APD) . These statistics are illustrated using data taken from a rather large store of raw analog data recorded in operational mines. The curves generated for the illustrations characterize the noise environment in the mines from which the corresponding data were taken, and should aid in the design of reliable communication systems for such mines.

Sponsored by the United States Bureau of Mines H0133005.

Document Type:

Report

Collection(s):

National Institute for Occupational Safety and Health

Funding:

H0133005

Main Document Checksum:

[+]

Supporting Files:

No Additional Files

No Related Documents.

You May Also Like:

Through-the-earth electromagnetic trapped miner location systems : a review

Personal Author:

Pittman, Walter E., Jr.; Church, Ronald H.; McLendon, J. T.;

Corporate Author:

Tuscaloosa Research Center (United States. Bureau of Mines)

Published:

1985

Series:

Open file report (United States. Bureau of Mines) ; 1985-127

Description:

"In its role of providing technical assistance to the mining industry, the Bureau of Mines' Tuscaloosa Research Center has conducted research to develop trapped miner location systems which would aid in locating miners trapped by underground mining d...

File Type:

[PDF - 2.64 MB]
A Spatial/ Spectral Domain Microwave Coal Seam Imaging Sensor-Progress In Signal Processing

Personal Author:

Chufo, Robert L.

Published:

0/1/1900

Description:

The paper, "An Electromagnetic Roof and Rib Thickness Sensor" presented at The 12th WVU International Mining Electrotechnology Conference in 1992, presented the results of roof coal thickness measurements in underground mines and rib coal thickness m...

File Type:

[PDF - 243.50 KB]
Spectrum measurements of electromagnetic-noise in coal mines;

Personal Author:

Bensema, W. D.; Adams, J. W.;

Conference Author:

Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)

Published:

1973

Source:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 151-155

Series:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines

Description:

A portable, multichannel battery-operated mine-permissible measurement system was developed to measure the rms magnetic-field noise spectrum in the frequency range from 100 Hz to 375 kHz. During each measurement, the entire spectrum is measured simul...

File Type:

[PDF - 231.00 KB]
Summary report on electromagnetic noise measurement program

Personal Author:

Adams, John W.

Conference Author:

Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)

Published:

1973

Source:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 169

Series:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines

Description:

The present status of the National Bureau of Standards program is that many magnetic tapes of analog data have been recorded in four major mines. Each mine uses different types of equipment. In addition, some surface measurements of noise have been m...

File Type:

[PDF - 37.61 KB]
Amplitude statistics of electromagnetic noise in coal mines

Personal Author:

Kanda, M.; Adams, J.W.;

Conference Author:

Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)

Published:

1973

Source:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 156-160

Series:

Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines

Description:

A system for measuring amplitude probability distributions (APD’s) of electromagnetic noise in coal mines is described and typical APD’s from an underground coal mine are presented. The APD is a basic statistic required for the design and analysi...

File Type:

[PDF - 145.82 KB]