NASA NTRS · 19820000057
Transducer System Traces Mine-Face Curve
Abstract
Electromechanical system capable of obtaining contour information on longwall coal face while longwall shearer mines coal. Two heavy-duty angle transducers 2.5 feet apart are attached to common reference surface and operate in conjunction with distance encode to measure angle between adjacent track sections along coal face.
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1982-12-01. Transducer System Traces Mine-Face Curve. https://ntrs.nasa.gov/citations/19820000057
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