Abstract:
The invention relates to a mechanical fuse and its use. The invention also relates to a method for receiving forces. The mechanical fuse (1) comprises fastening points (2, 3) with an intermediate part (4) between them. The intermediate part comprises at least one breaking section (5) and at least one absorbing section (7, 8). The breaking section is arranged to break, when a force (F) that is bigger than a predefined force is directed to the fuse, whereby the fuse trips. After the fuse has tripped, forces are received by the absorbing section.
Abstract:
Embodiments include a method for forming a glass which displays visible cracking prior to failure when subjected to predetermined stress level that is greater than a predetermined minimum stress level and less than a failure stress level. The method inlcudes determining a critical flaw size in the glass and introducing a residual stress profile to the glass so that a plurality of visible cracks are formed prior to failure when the glass is subjected to a stress that is greater than the minimum stress level and lower than the critical stress. One method for forming the residual stress profile includes performing a first ion exchange so that a first plurality of ions of a first element in the glass are exchanged with a second plurality of ions of a second element that have a larger volume than the first ions. A second ion exchange is also performed so that a plurality of the second ions in the glass are exchanged back to ions of the first element.
Abstract:
Systems, apparatus and methods are provided for measuring moving vehicle information. Moving vehicle information may be measured by a sensor configured to respond to one or more wheels of the vehicle, where one or more of the wheels changes the characteristic impedance of the sensor at the wheel's contact location. An electrical time domain reflectometry signal processing system which is capable of measuring the change in the impedance of the sensor and converting the impedance change to a signal may be connected operatively to the sensor. A data-processing system receives the signal and extracts the vehicle information therefrom.
Abstract:
The mechanical load on a rolling element bearing is determined from the deformation of the rolling element bearing. The local deformation caused by the rolling contact forces is used to determine an average contribution to the mechanical load in order to average out the effect on the deformation as a result of the spread in diameter of -the rolling elements of the bearing. The global deformation of the rolling element bearing is determined to calculate a dynamic contribution to the mechanical load. The dynamic contribution takes into account the variations of the mechanical load on the relevant time-scales that have been omitted from the average contribution as a result of the averaging operation. The total mechanical load is the sum of the average contribution and the dynamic contribution.
Abstract:
A pressure indicating structure comprising (1) a translucent or transparent sheet having opposite first and second major surfaces, reflective structure defining at least a portion of that second surface for reflecting back through the first surface at an observation angle in a predetermined range of observation angles a visually significant amount of the light entering the sheet through its first surface, that reflective structure comprising a multiplicity of peak portions and recessed portions having recessed surface portions of the second surface that define recesses from the peak portions; and (2) a deformable layer comprising pressure sensitive adhesive, the deformable layer having opposite major surfaces with one of those surfaces defined by the pressure sensitive adhesive being along the second surface of the sheet adjacent and over the peak portions of the reflective structure and spaced from the recessed surface portions of the second surface. The shape and size of the peak portions and recessed portions of the reflective structure and the deformability of the deformable layer are selected or adapted so that a predetermined pressure is needed between the first surface of the sheet and the surface of the deformable material opposite the reflective structure to deform the pressure sensitive adhesive of the deformable layer adjacent the reflective structure into the recesses to wet part or all of the recessed surface portions of the reflective structure. Such wetting of part or all of the recessed surface portions of the reflective structure causes light to pass through the second surface along the wetted recessed surface portions instead of being reflected, thereby causing significant visually observable changes in the appearance of the reflective structure at an observation angle in the range of observation angles to indicate that the predetermined pressure has been applied.
Abstract:
Eine Fahrradsattel-Uberprüfungseinrichtung zur Überprüfung des Sitzkomforts, insbesondere für Sportsättel, weist ein Druckabbildeelement (10) zum Visualisieren der auf Sitzknochen eines Benutzers wirkenden Kräfte auf. Das Druckabbildeelement (10), bei dem es sich vorzugsweise um ein in einem Aufnahmehohlraum (14) angeordnetes Gel handelt, ist mit I lilfe einer Fixiereinrichtung (18) an einem zu überprüfenden Sattel befestigbar. Bei der Fixiereinrichtung handelt es sich insbesondere um einen Satteluberzug.
Abstract:
The present invention relates to a method and an apparatus for establishing residual stresses in objects, in particular in coated objects, and to a method and an apparatus for coating objects. The method comprises: impinging a surface (8) of the object (5) with laser light and generating a hole or a pattern of holes and/or locally heated points in the object (5); establishing the surface deformations by means of an optical deforming measuring method after the object (5) is impinged by laser light; establishing the residual stresses present in the object (5) from the measured surface deformations, wherein the generation of the hole pattern is carried out by means of an optical scanning apparatus which comprises an optical deflection and/or modulation arrangement for controllable deflection and/or modulation of the laser light, and/or a focusing arrangement for controllable focusing of the laser light.