Patent ID: 6140824
Filing Date: 2000-10-31
Classification: G01B,G01D,H01J

Abstract:
A circuit arrangement for measuring diameters of metal bodies, in particular of wires, having a first device (1) which generates a sensor signal, and an oscillator (O) which feeds electric signals of a prescribable frequency to the first device (1), whereinthe circuit arrangement has a second device (2), which generates a reference signal as a function of the ambient temperature and the ambient atmospheric humidity, and has a third device (3) which combines the sensor signal with the reference signal and generates an output signal which represents a change in the diameter of the metal body, andwherein the first device (1) and the second device (2) are arranged in such a way relative to one another that both devices are exposed to the same ambient temperature and the same ambient atmospheric humidity, with the result that the influence of ambient temperature and the ambient atmospheric humidity is compensated for when forming the output signal.