Eddy probe system on the basis of new technology

摘要

The mode of functioning of the majority of eddy probe system is grounded on the active oscillator method that gives the parameter instability at the effect of environment temperature on the components of eddy probe system (non-contact eddy probe, extension cable and probe driver). GlobalTest has developed a new way of eddy current monitoring grounded on excitation in a probe of damped oscillations by an impulse power source for decrease of environment temperature effect on the components of eddy probe system. The discrete excitation process made possible measurement of a current probe heat-resistance and also measurement of an extension cable during measurement of displacement and an automatic response correction depending on heat-resistance value.