Automated resonant mechanical analyzer

An automatic vibrating reed apparatus for internal friction and elastic mod ulus measurements in solids is described. The apparatus is equipped with a resistive heater for measurements up to 1400 K. A magnetic field (up to 250 kAt/m) is also available in the 300-1000 K range. Measurements as a functi on of temperature and/or magnetic field can be easily carried out. Data acq uisition is controlled by a computer and originally written software allows automatic measurements and real time data analysis offering a user-friendl y interface. The acquisition rate is nearly two orders of magnitude faster than that achieved manually. The use of the analyzer is straightforward and does not require a prolonged training of particularly skillful personnel. (C) 2001 American Institute of Physics.