G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 31/34 (2006.01) G01R 31/06 (2006.01)
Patent
CA 2062533
Abstract of the Disclosure: A method for testing a valve being driven by an electromagnet having a magnet armature, includes determining a value of current intensity in the magnet as a response current inten- sity, at an instant when motion of the magnet armature of the valve begins during a switching action of the valve. A force acting through the magnet upon the magnet armature is deter- mined from the determined response current intensity, at the instant when motion of the magnet armature begins, by means of a calibration function, as a response force and as a standard for the condition of the valve. An apparatus for testing a valve being driven by an electromagnet having a magnet armature and an electrical circuit, includes a current intensity meter in the electrical circuit of the magnet. A computer is connected to the current intensity meter. A memory for a calibration function is connected to the comput- er for indicating a dependency of a force acting upon the magnet armature on a current intensity in the electrical circuit of the magnet.
Kempf Burkhard
Klotz Hans-Joachim
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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