An example multi-turn counter (MTC) sensor includes a magnetic strip that includes a domain wall generator located at a first end of the magnetic strip, where the domain wall generator is to generate at least one domain wall in the magnetic strip, the at least one domain wall configured to propagate based on a magnetic field caused by a magnet; wherein a location of the at least one domain wall indicates a turn count of the magnetic field of the magnet; the turn count to indicate one or more of a predefined fraction of a full rotation of the magnetic field; an end tip located at a second end of the magnetic strip, where the second end of the magnetic strip is opposite the first end; and a plurality of overlapping strip turns that cause a plurality of crossings in the magnetic strip.

A multi-turn non-contact sensor includes a rotationally mounted driver magnet, and a rotationally mounted driven magnet. The driver magnet has a first number (P.sub.1) of magnetic poles and is configured to selectively receive a rotational drive torque and, upon receipt of the drive torque, to rotate about a first rotational axis. The driven magnet is spaced apart from, and is coupled to receive a magnetic force from, the driver magnet. The driven magnet has a second number (P.sub.2) of magnetic poles and is responsive to rotation of the driver magnet to rotate about a second rotational axis that is parallel to the first rotational axis. The driven magnet rotates one complete revolution each time the driver magnet rotates a predetermined number (N) of complete revolutions, P.sub.2>P.sub.1, and N=(P.sub.2/P.sub.1).

A multi-turn non-contact sensor includes a rotationally mounted driver magnet, and a rotationally mounted driven magnet. The driver magnet has a first number (P.sub.1) of magnetic poles and is configured to selectively receive a rotational drive torque and, upon receipt of the drive torque, to rotate about a first rotational axis. The driven magnet is spaced apart from, and is coupled to receive a magnetic force from, the driver magnet. The driven magnet has a second number (P.sub.2) of magnetic poles and is responsive to rotation of the driver magnet to rotate about a second rotational axis that is parallel to the first rotational axis. The driven magnet rotates one complete revolution each time the driver magnet rotates a predetermined number (N) of complete revolutions, P.sub.2>P.sub.1, and N=(P.sub.2/P.sub.1).

The invention relates to a field device for automation engineering having a housing, wherein the housing has at least one associated pushbutton switch. Operation of the pushbutton switch is detected, according to the invention, inside the housing without the presence of mechanical or electrical passageway through the wall of the housing. For this, the housing does not need to have a blind hole or an inwardly directed depression. This is achieved by a rigid arrangement of a first element for producing a magnetic field on the outer wall of the housing. By means of interaction with a second element for influencing the magnetic field of the first element, which is arranged in an operating element, a variable magnetic field is produced inside the housing. This magnetic field is sensed by a sensor. On the basis of the alteration in the magnetic field, the sensor can determine whether the pushbutton switch is currently being operated.

The invention relates to a field device for automation engineering having a housing, wherein the housing has at least one associated pushbutton switch. Operation of the pushbutton switch is detected, according to the invention, inside the housing without the presence of mechanical or electrical passageway through the wall of the housing. For this, the housing does not need to have a blind hole or an inwardly directed depression. This is achieved by a rigid arrangement of a first element for producing a magnetic field on the outer wall of the housing. By means of interaction with a second element for influencing the magnetic field of the first element, which is arranged in an operating element, a variable magnetic field is produced inside the housing. This magnetic field is sensed by a sensor. On the basis of the alteration in the magnetic field, the sensor can determine whether the pushbutton switch is currently being operated.

A method for producing a micromechanical element includes producing a micromechanical structure, the micromechanical structure having: a functional layer for a micromechanical element, a sacrifical layer at least partly surrounding the functional layer, and a closure cap on the sacrifical layer. The method further includes applying a cover layer on the micromechanical structure. The method further includes producing a grid structure in the cover layer. The method further includes producing a cavity below the grid structure, as access to the sacrifical layer. The method further includes at least partly removing the sacrifical layer. The method further includes applying a closure layer at least on the grid structure of the cover layer for the purpose of closing the access to the cavity.

A method for producing a micromechanical element includes producing a micromechanical structure, the micromechanical structure having: a functional layer for a micromechanical element, a sacrifical layer at least partly surrounding the functional layer, and a closure cap on the sacrifical layer. The method further includes applying a cover layer on the micromechanical structure. The method further includes producing a grid structure in the cover layer. The method further includes producing a cavity below the grid structure, as access to the sacrifical layer. The method further includes at least partly removing the sacrifical layer. The method further includes applying a closure layer at least on the grid structure of the cover layer for the purpose of closing the access to the cavity.

A window sensing device with movement detection enables use of a window sensing arrangement to provide an indication even when a window sash that is open is moved, while an alarm system is armed. The window sensing device includes an accelerometer configured to sense movement of a window sash in a given direction. A magnetic sensor is configured to sense presence of a magnet when the window sash is in a closed position. An electronic controller outputs a normal state wireless signal when the magnetic sensor senses the magnet and outputs an alarm state wireless signal when the magnetic sensor does not sense the presence of the magnet. When the electronic controller is outputting an alarm state wireless signal and the accelerometer senses movement of a window sash, the electronic controller outputs an indication of movement of a window sash in a given direction.

A method of inspecting an electrode provided in a gas sensor element includes the steps of: producing, in advance, a calibration curve representing a relation between an Au maldistribution degree defined based on a ratio of an area of a portion at which Au is exposed on a noble metal particle surface and calculated from a result of XPS or AES analysis on an inspection target electrode, and a predetermined alternative maldistribution degree index correlated with the Au maldistribution degree and acquired in a non-destructive manner from the gas sensor element heated to a predetermined temperature; acquiring a value of the alternative maldistribution degree index for the inspection target electrode of the gas sensor element while the gas sensor element is heated to the predetermined temperature; and determining whether the Au maldistribution degree satisfies a predetermined standard based on the calibration curve and the acquired inspection value.

A wiping assembly for a fluid ejection device includes a sled slidably movable relative to the fluid ejection device. The wiping assembly further includes a length of wiping material. An indicator slidably coupled to the wiping assembly is included. The indicator changes position relative to the wiping assembly and restricts movement of the wiping assembly to an initial position to indicate a level of usage of the wiping material.