Torsion indicator

1.An autographic torsion meter.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
At the Main Astronomical Observatory of National Academy of Sciences in Kiev, Ukraine, a high-sensitive torsion balance with a new design (termed "torsind", refering to the device's function as a torsion indicator) has been quasi-continuously measuring fluctuations of its angular deflection since 2009.