The use of some iterative deconvolution algorithms to improve the spatial resolution of a flat magnetic sensor

Abstract In this paper we present an application of some iterative algorithms to solve a deconvolution problem. The aim is to solve an integral equation between an impulse response of a sensor and a desired and not accessible input signal. Experimentally, we want to remove the distortion effects of the measuring system on an input signal. The applications concern the measurement of the distance between a flat eddy-current proximity sensor and a metallic surface in front of it. Numerical results are presented as an illustration. Experiments have been carried out to ascertain the performance of the conjugate gradient algorithm outlined in this paper. We also compare its performance to that of the iterative sequential algorithm of Placko et al.