Micro-epsilon Messtechnik Gmbh & Co. Kg

Mark Netschaewsky

Felix Mednikov

Karl Wisspeintner

Roland Mandl

G&uuml;nter Schallmoser

Stanislav Mednikov

A device and a method for detecting the position of an object ( ), such as an armature ( ) of an inlet or outlet valve ( ), with the device comprising at least two coils ( ), preferably two magnet coils, which can be energized for moving the object ( ) between the two coils ( ), or used with an evaluation circuit for detecting the position of the object ( ). The two coils ( ) are alternately used for moving the object ( ) between the coils ( ) and for detecting the position of the object ( ).

Device and method for detecting the position of an object

An eddy current sensor (,) has at least one measuring coil (,) that can be supplied with an alternating current, and an evaluation circuit (,). The eddy current sensor allows the temperature influences on the impedance of the measuring coil to be reliably compensated with a simple design and an evaluation circuit. For this purpose, the eddy current sensor has a compensating coil (,) which can also be supplied with an alternating current and which is arranged closely to the measuring coil, i.e. in thermal contact therewith, in such a way that the electric fields of compensating coil (,) and measuring coil (,) are orthogonal to each other. More particularly, the measuring coil (,) is in an annular form and the compensating coil (,) is wound around the measuring coil in the form of a torus.

Growing community of inventors

Samara, Russia

Mark Netschaewsky