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.
Transducer System Traces Mine-Face Curve
NASA Tech Briefs ; 6 , 4
1982-12-01
Miscellaneous
No indication
English
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