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Computer-automated Measurement-and Control-based Workstation for Microseismic and Acoustic Emission Research.

Authors
Boler-FM; Swanson-PL
Source
MISSING :9 pages
Link
NIOSHTIC No.
10008225
Abstract
The U.S. Bureau of Mines has configured a flexible data acquisition and analysis workstation, which incorporates control and analysis software written in-house for use in mining research experiments conducted in the laboratory and in operating underground mines. This data acquisition system combines computer-automated-measurement- and-control (camac) modular instrumentation with a unix-based graphics workstation. The data acquisition front-end hardware can be interfaced to almost any computer. Camac instrumentation modules adhere to mechanical, electrical, and digital interface standards and can be custom-designed or purchased off the shelf. Communications along the camac bus are regulated by the crate- controller module, which contains the only hardware link to the computer interface. Software support for the data acquisition and analysis workstation consists of a series of functions and programs written in the "c" programming language designed to provide flexible and fast data acquisition, processing, and analysis. The user can interactively control the digitizers and other camac modules by sending standard camac read, write, and command function codes from a menu-driven program. Automated data collection is achieved through software that responds to hardware interrupts triggered by acoustic emission or microseismic events. Graphics display routines are used to plot part or all of the data and provide the ability to process and store signal information selectively.
Publication Date
19900101
Document Type
IH; Information Circular;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
IC 9262
NIOSH Division
DRC;
Source Name
MISSING
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