Mining machine having vibration sensor
This patent describes a mining machine having means for sensing property variations of the materials associated with a seam of a mine comprising: a cutting tool including a member rotatable about an axis, at least one cutter carried by the rotatable member at a point spaced from the axis for cutting material from the seam, a conductor rod carried by the rotatable member and held in releasable engagement with the cutter, the rod extending to the axis of the rotatable member to conduct to the axis, strain waves which are induced by variations in cutter vibration as the cutter encounters property variations of the materials associated with the seam, and a transducer located at the axis of the rotatable member in communication with the conductor rod to convert the strain waves in the rod to electric signals.
- Assignee:
- Massachusetts Institute of Technology, Cambridge, MA
- Patent Number(s):
- US 4655082
- OSTI ID:
- 6555782
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
COAL DEPOSITS
COAL MINES
COAL SEAMS
CUTTING
CUTTING TOOLS
EQUIPMENT
GEOLOGIC DEPOSITS
MACHINING
MECHANICAL VIBRATIONS
MINERAL RESOURCES
MINES
MINING
MINING EQUIPMENT
MOTION
RESOURCES
ROTATION
SIGNALS
SPACE DEPENDENCE
STRAINS
TOOLS
TRANSDUCERS
UNDERGROUND FACILITIES
UNDERGROUND MINING
WAVE PROPAGATION