Abstract: Force measuring device including a rigid, piston-type inner element (2) and a rigid, cylindrical outer element (4) having an interior conture complementary to the peripheral surfaces of the inner element (2); a narrow annular gap (3, 3a, 3b) between surfaces of the inner and outer elements facing each other; elastomeric, essential bubblefree material (5) provided in annular gap (3, 3a, 3b) and fixedly adhering to the contact surfaces; a ring space (6) formed between the inner and outer elements (2, 4) and filled with the elastomeric material (5) as well; and at least one pressure sensor (9) being in pressure transmission contact to the elastomeric material (5) in ring space (6), characterized in that the pressure sensor (9) is arranged eccentrically in respect of the central axis (10) and is designed for detecting both axial force components (A) and radial force components (B) acting at a force introduction position (11) and thereby forming a moment rotational pole (M) on the central axis ( 10).
Abstract: An apparatus for determining the pressure distribution along a limited distance comprises a plurality of pressure sensors arranged at predetermined distances to each other and connected to an evaluation circuit, the pressure sensors being arranged, in particular embedded, in/at a preferably round rope-type body of elastomeric material, the body being surrounded by a non-elastic, however in radial direction deformable cover in fixed connection thereto. The apparatus may be advantageously used as a filling level indicator in a bin or for various other purposes.
Abstract: A force transmission element for force or moment measuring devices includes a block of essentially incompressible elastomeric material for transmission of forces to at least one force or pressure sensor arranged within said block or in close contact with the elastomeric material, wherein said block is closely surrounded by an enclosure deformable in axial force measuring direction, but essentially not expandable in cross section essentially perpendicular thereto. Such force transmission elements may be used in force transmission devices and may be manufactured by at least partially casting the enclosure in the elastomeric material with the enclosure, if desired, serving as a mold.
Abstract: A pressure sensor Comprising a disk-type base part having a preferably central opening spanned at one end by a surface-type pressure transducer, a pressure receiving part having a diaphragm arranged at distance from the other end side of said opening and integrally formed with a rigid ring having the same peripheral dimensions as the disk-type base part and being connected thereto. A distance holder is provided between the diaphragm and the pressure transducer fully transmitting any deformation of the diaphragm to the pressure transducer. Such a pressure transducer may be manufactured by a simple and cost-effective procedure with the various elements formed of ceramic, sintered and combined.
Abstract: An apparatus and method for measuring vertical forces exerted to a pair of parallel rails by a rail-supported vehicle uses sleepers for supporting said rails which are provided with recesses located below said rails and having inserted therein a force measuring device. An evaluation device may be arranged remotely from said force measuring device(s) for wireless receiving of measuring signals therefrom.