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A Sensitive Water-Level Tiltmeter
1973
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
A sensitivity approximately equal to that of a horizontal pedulum is obtained in a 50 m long water-level tiltmeter. A crapaudine-type calibrating device is described.
doi:10.1098/rsta.1973.0046
fatcat:rnj7sz2m7rhk3eutqllsqsh3ee