A differential pressure indicator includes a multi-polar driving magnets train clamped on a piston pin that moves in response to the changes in pressure conditions, thereby driving a multi-polar follower magnet carrying an indicating member, to move across a scale for a total angular range of 90° to 270°. The exact angular displacement of the follower magnet per unit linear displacement of the driving magnets train is decided by varying the relative magnetic strengths of the driving and follower magnets or by varying the spacing between adjacent magnets of the driving magnetic train. Further, magnetic flux of an auxiliary magnet fitted on the piston pin at a 90° orientation relative to the driving magnet train is utilized for actuating a magnetic switch in the switch assembly.

A differential pressure indicator includes a multi-polar driving magnets train clamped on a piston pin that moves in response to the changes in pressure conditions, thereby driving a multi-polar follower magnet carrying an indicating member, to move across a scale for a total angular range of 90° to 270°. The exact angular displacement of the follower magnet per unit linear displacement of the driving magnets train is decided by varying the relative magnetic strengths of the driving and follower magnets or by varying the spacing between adjacent magnets of the driving magnetic train. Further, magnetic flux of an auxiliary magnet fitted on the piston pin at a 90° orientation relative to the driving magnet train is utilized for actuating a magnetic switch in the switch assembly.

A riding lawn mower includes a chassis, a power output assembly, a walking assembly, a power supply device, a control module, and an operating apparatus. The operating apparatus includes at least one bracket, an operating lap bar assembly, a pivoting assembly, and a position detecting module. The pivoting assembly mounts the operating lap bar of the operating lap bar assembly on the bracket. The operating lap bar can rotate around different positions in a first direction F1 and/or a second direction F2. The position detecting module includes a magnetic element and a magnetic sensor. The magnetic element is provided on the pivoting assembly or the bracket and the magnet sensor is spaced from the magnetic element so that the magnetic element and the magnetic sensor can generate a relative movement for detecting the position of the operating lap bar in the first direction F1 and/or the second direction F2.

A portable sensor calibration device that provides a reference to a sensor during a calibration procedure. The sensor calibration device may have a umber of adjustable functions providing for functional configurability, such as interchangeable target elements, adjustable pitch, adjustable target mounting, and locking elements.

A portable sensor calibration device that provides a reference to a sensor during a calibration procedure. The sensor calibration device may have a umber of adjustable functions providing for functional configurability, such as interchangeable target elements, adjustable pitch, adjustable target mounting, and locking elements.

A portable sensor calibration device that provides a reference to a sensor during a calibration procedure. The sensor calibration device may have a umber of adjustable functions providing for functional configurability, such as interchangeable target elements, adjustable pitch, adjustable target mounting, and locking elements.

A portable sensor calibration device that provides a reference to a sensor during a calibration procedure. The sensor calibration device may have a umber of adjustable functions providing for functional configurability, such as interchangeable target elements, adjustable pitch, adjustable target mounting, and locking elements.

Aspects of the present invention include a system and method for differentiating one or more objects detected behind an opaque surface, comprising, a plurality of sensors, controlled by one or more processors, configured to collect in parallel, sensor data of the one or more objects behind an opaque surface, the one or more processors are configured to analyze the sensor data to identify estimated regions of the one or more objects behind the opaque surface, the one or more processors are further configured to differentiate the estimated regions of the one or more objects behind the opaque surface, and, the one or more processors are further configured to inform a user, via a user interface, of the one or more objects within the estimated regions behind the opaque surface.

Aspects of the present invention include a system and method for differentiating one or more objects detected behind an opaque surface, comprising, a plurality of sensors, controlled by one or more processors, configured to collect in parallel, sensor data of the one or more objects behind an opaque surface, the one or more processors are configured to analyze the sensor data to identify estimated regions of the one or more objects behind the opaque surface, the one or more processors are further configured to differentiate the estimated regions of the one or more objects behind the opaque surface, and, the one or more processors are further configured to inform a user, via a user interface, of the one or more objects within the estimated regions behind the opaque surface.

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.